TW201918972A - Warrant commodities evaluation system and method - Google Patents

Abstract

The present invention relates to a warrant commodities evaluation system. The system may be installed in a computer system, to provide correct value evaluation of warrant commodities and to display the value information in a simplified manner. The invented warrant commodities evaluation system provides useful suggestions to investors of warrants. A method for evaluating warrant commodities using the invented system is also disclosed.

Description

Warrant commodity value evaluation system and method

The present invention relates to a financial commodity value assessment system, and more particularly to a value assessment system for warrant commodities. The invention also discloses a method for evaluating the value of a warrant commodity applied to the warrant commodity value evaluation system.

Warrants, also known as "warrants," are financial derivatives. The investor pays a certain amount of royalties and obtains the purchaser from the issuer at the agreed date (expiration date) or within the agreed period (before the due date) according to the agreed price (exercise price or strike price). Or the right to sell the underlying (the underlying) of the agreed amount (exercise ratio). The warrants for the agreed selling price of the underlying securities (investors are bullish) are called call warrants; the warrants for the agreed buying price (investors' bearish) are called put warrants. The warrants may be issued by the issuing company of the underlying securities or by a third party. After the warrant is issued, it can be bought and sold on the open market and become a financial commodity.

The price factors involved in the trading of warrants are relatively complex. In addition to the price of the underlying security (including historical prices), it also includes the strike price, the exercise rate, the maturity date and the issue price of the warrant or the purchase/sell price at the time of sale. It is actually difficult for a typical investor to judge the value of the warrant from these data.

In addition, the issuing company of the warrant has a large number of investment experts. According to the expert's professional judgment, the issuing price of the warrant is set with reference to the price of the underlying security and the expiration date of the warrant. In order to control the profit space of the warrant investor to a certain extent. If an investor cannot correctly judge the true value of the warrant, it is actually difficult to make a profit in the investment of the warrant.

In order to help investors more easily judge the value of warrants, the industry has developed a variety of warrants commodity value assessment system for investors to refer to.

Taiwan invention patent TW I544439 reveals a value estimation service system for financial products. The system uses investment experts who are familiar with financial commodity investment to form a group of “excellent users”. The value of financial products is estimated by excellent users for various financial products. The system can be ranked according to the actual price of a particular financial product, and automatically judges the accuracy of the excellent user's estimate of the financial product. Non-excellent users can also make an estimate. Users with high accuracy of estimated results are automatically selected by the system as excellent users. This encourages customers to participate in the estimation of the value of financial products and improve the accuracy of the system's estimate of the value of financial products.

Taiwan invention patent TW I520088 reveals a trend analysis system for financial products. The system can be built into a computer device to analyze the strength of the fund. The system calculates a plurality of transaction net values based on the historical transaction price of a particular fund to obtain reference values such as long-short transaction mean, time parameters, and predictors. Thereafter, the net value of the transaction at a point in time is analyzed based on the above reference value to obtain the net value of the indicator and the estimated net value. When the net value of the transaction at a point in time is greater than the estimated net value minus the net value of the indicator, the value of the estimated net value is added, that is, a support value and a buy signal are output; otherwise, a pressure value and a sell signal are output.

Taiwan's new patent TW M519287 discloses a warrant analysis device for calculating the "difference ratio" of a specific warrant product and marking the warrant data with a margin ratio of less than 0.3. The difference ratio described therein is the result of the spread ratio/substantial leverage. The price difference ratio refers to the value of (the selling price - the purchase price) / the selling price. The substantial leverage refers to the value of a Delta value × (stock price / warrant price) × exercise ratio. The new type can calculate a warrant interest rate value, representing a value of Theta value / warrant price × 365 × 100%.

As can be seen from the above prior art description, there is a real need in the industry for a system that can correctly calculate the value of warrants. However, the warrants value evaluation system provided by the prior art cannot provide a correct value assessment. For example, the difference in the bar ratio used by the TW M519287 is in fact the decision of the publisher. The issuing brokers usually widen the gap between the value of the valuable warrants and the price difference. As a result, the system cannot be selected as a high-value warrant product.

It is an object of the present invention to provide a warrant merchandise value assessment system to provide a correct value assessment of warrant merchandise.

It is also an object of the present invention to provide a warrant commodity value evaluation system that displays the value of a warrant commodity in a simple manner.

It is also an object of the present invention to provide a warrant merchandise value evaluation system that can automatically provide advice to a user on a warrant merchandise investment.

The object of the present invention is also to provide a method for evaluating the value of a warrant commodity, which is applied in the warrant value evaluation system to provide a correct value assessment for the warrant commodity.

The object of the present invention is also to provide a method for evaluating the value of a warrant commodity, which is applied to the warrant commodity value evaluation system to provide the user with the right to propose a warrant commodity investment.

According to a preferred embodiment of the present invention, the present invention provides a warrant commodity value evaluation system that can be built into a computer system to provide a correct value assessment of warrant items and to display warrants in a simple manner. Commodity value. The warrant commodity value assessment system can provide users with advice on investment in warrants. The present invention also provides a method that can be implemented in a computer system to correctly calculate the value of the warrant commodity and provide the user with advice on the investment of the warrant commodity.

The warrant commodity value evaluation system according to the present invention comprises: an input module for accepting user input of the warrant commodity identification information to be queried, that is, representing the specific warrant commodity or the warrant commodity group description information, such as the warrant Description, name, code or warrant group description, name, code;

a data capture module connected to the input module and connected to at least one warrant product database for searching for one or more warrant products in the warrant product database according to the warrant product identification information input by the input module And obtaining relevant transaction information of the warrant commodity; the related transaction information of the warrant commodity includes the issue price or the purchase price, the maturity date, the strike price, the exercise ratio, and the purchase price of the securities related to the warrant At least one of the data capture modules and a network communication device for the data capture module to connect to the warrant commodity database via a communication network to retrieve transaction information of the warrant commodity;

a value calculation module, which is connected to the data capture module to calculate the value of the warrant product based on the transaction information of the specific warrant product obtained by the module;

a display module, connected to the data capture module and the value calculation module, and including a display device for calculating the value information of the specific warrant product calculated by the value calculation module, together with the description information of the warrant product Displayed on the display device;

Wherein, the value calculation module calculates the value of the warrant product (subscription value difference rate) by the following formula: (Formula 1)

Wherein, the selling price is the issue price or the purchase price of the warrant product, and the price is the market quotation price of the warrant-related securities (the underlying securities) minus the strike price divided by the quotient of the strike price: Formula 2)

The market trading price of the underlying security may be the calculation of the effective market price at the time, or the previous day closing price or the market price at any one time, or an average price.

In a preferred embodiment of the invention, the warrant group is a plurality of warrant items that are subject to a security. And the display module displays the value information of the plurality of warrant products together with the description information of the warrant products on the display device, preferably according to the calculated value difference rate, and more preferably displays the highest ranking. The value information of a limited number of warrants and their explanatory information.

In a preferred embodiment of the present invention, the description information of the warrant product includes the number of days from the expiration date of the warrant product, and the issue price or the purchase price, the due date, the strike price, the exercise ratio, And at least one of the purchase price of the securities associated with the warrant.

In a preferred embodiment of the present invention, the warrant commodity value evaluation system may further include a warrant merchandise selection module, the warrant merchandise selection module is coupled to the data capture module, the input module and the value calculation module a group, after selecting the value calculation module, the value difference rate is higher than a predetermined value and/or a warrant product that is shorter than a set number of days from the expiration date, displayed on the display device; wherein the input module It also includes a predetermined value input field and a set date input field.

In a specific embodiment of the present invention, the value calculation module further calculates the value of the warrant item (the rate of the sale price value): (Formula 3)

In a preferred embodiment of the present invention, the value difference rate is displayed on the display device together with the expiration date related information of the ticket, and the user can select a higher value difference rate and a shorter expiration date. The warrants are the subject of investment. The rate of the subscription value is sufficient to indicate the true value of the warrant commodity for the purchase of a particular underlying security at the strike price on the agreed expiration date; the rate of the underpricing value is sufficient to represent the warrant for the sale of the particular underlying security at the strike price on the agreed expiration date. The true value of the goods.

The present invention also provides an evaluation method for a warrant commodity value evaluation system, the method comprising the following steps: using a computer device, preferably the above-mentioned warrant commodity value evaluation system:

Accepting the user's input of the warrant product identification information to be queried;

Obtaining one or more warrants in a warrant commodity database according to the entered warrant commodity identification information, and extracting relevant transaction information of the warrant commodity;

Calculating the value of the warrant commodity according to the formula of the formula 1 or formula 3 according to the transaction information of the obtained specific warrant commodity;

The calculated value information, together with the description information of the warrant product, is displayed on a display device. The description information further includes information on the due date of the corresponding warrant product.

The above and other objects and advantages of the present invention will become more apparent from the appended claims.

Several specific embodiments of the system and method for evaluating the value of the warrants of the present invention will be described below by way of examples. However, the embodiments are only intended to illustrate several possible applications of the present invention by way of example, to enable the reader to understand the principles and technical connotations of the present invention. It is not difficult for experts in this industry to derive other applications or implementations from the description of the embodiments. However, it should be included in the scope of the patent of the present invention in any case.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a block diagram showing an embodiment of the Warranty Commodity Value Evaluation System of the present invention. As shown in the figure, the warrant product value evaluation system 100 of the present invention includes an input module 10 for providing information input by a user for retrieval, and a data capture module 20 for displaying instructions according to the user. Retrieving transaction information for a particular one or more warrant items; a value calculation module 30 for calculating the value of the particular one or more warrant items; and a display module 40 for displaying value information for the warrant items.

In a preferred embodiment of the present invention, the warrant commodity value evaluation system 100 can be implemented in a general-purpose computer device, such as a personal computer, a tablet computer, a smart phone, etc., in the form of an application program (APP). The various operations required for the warrant commodity value evaluation system 100 are performed using the input and output devices, interfaces, and powerful communication and computing capabilities of the computer device. In most embodiments, the input module 10 is usually a touch screen of a tablet or a smart phone, or a keyboard or mouse of a personal computer. Of course, it can also be any suitable input device. In a particular embodiment of the invention, the warrant merchandise value assessment system 100 can be an independent warrant merchandise value assessment device that is built for the purpose of evaluating the warrant merchandise. In this embodiment, the input module 10 can be a touch panel and/or a keyboard or a mouse of the independent device. The input module 10 must also provide a graphical interface 11 to facilitate the user to see if the input result is correct. The graphical interface 11 can be provided on a display device 41. The display device 41 is typically a display of a personal computer, tablet or smart phone, or a display of a standalone device. The graphical interface 11 can be configured into a plurality of preset functions, including, for example, a welcome page, a warrant product introduction, a selection page, and a necessary input and output field for the user to input the warrant product identification information to be queried.

Another implementation form of the system and system for evaluating the value of the warrants of the present invention is a web page. The user can connect to the web server (not shown) built by the warrant commodity value evaluation system 100 by using a personal computer, a tablet computer, a smart phone or other internet device, and input the warrant product identification information to be queried on the webpage. . In such an embodiment, the graphical interface 11 should be in the form of a web page, and it goes without saying.

In the preferred embodiment of the present invention, when the user inputs the warrant product identification information to be queried, the input module 10 is pre-built as long as any description information sufficient to represent the specific warrant product or the warrant product group is input. In the warrants commodity comparison table, the matching warrant identification information is searched for, and the correct retrieval information is provided. The information suitable for use as warrant product identification information includes a description of the warrant product (eg, the name of the underlying security, the code name, the name of the issuing company, the code number, etc.), the name of the warrant, the code, or a description of the warrant group (eg, the same group of warrants) The common underlying security name, code name, issuing company name of the same group of warrants, code name, etc.), group name, code, etc. preset on a specific device or website. In practical applications, the more commonly used by investors is to enter the name or code of a underlying security so that the warrant commodity value assessment system 100 of the present invention calculates the value of all warrants issued under the underlying security. Or enter a name or code of the issuing company to cause the warrant commodity value evaluation system 100 of the present invention to calculate the value of the ownership certificate issued by the company. However, other methods of grouping, such as setting up a group by a user, are feasible.

The data capture module 20 of the present invention is coupled to the input module and typically includes a network communication device 21 for connection to a warrant merchandise repository 200 via a communication network. The network communication device 21 is usually a wireless internet device that can connect to the Internet and request the warrant product database 200 to provide transaction information of a specific warrant product. A warrant commodity database 200 capable of providing the required warrant transaction information, usually including major financial and securities company websites. Others, such as investment websites, investment companies, etc., will also provide transaction information for a variety of warrants for investors to charge or request for free. The warrant merchandise database 200 can also be built into the warrant merchandise value assessment system 100 for ready access. The data capture module 20 is connected to the warrant commodity database 200 via the network communication device 21, or from the self-equipped warrant commodity database 200, according to the warrant commodity identification information input by the input module 10, Find (pair) one or more warrants. The data capture module 20 retrieves relevant transaction information of the successfully paired warrant products from the warrant commodity information files successfully paired in the warrant commodity database 200. In general, the warrants commodity trading information that each issuing company or securities company can provide includes: the issue price or the purchase price, the maturity date, the strike price, the exercise ratio, and the sale and purchase of the securities related to the warrant. price. In accordance with a preferred embodiment of the present invention, the transaction information required to be used does not deviate from the range when calculating the value of a particular warrant item. Therefore, the data capture module 20 can easily obtain the information required to calculate the value of the warrant commodity. It is a mature technology to request the transaction information required to calculate the value by means of network communication to the warrant commodity database 200, which usually provides the warrant commodity transaction information. This industry expert can use existing computer equipment, flat computer equipment or smart phones to write software for the application. The technical details are not required to be described here.

The value calculation module 30 is one of the focuses of the present invention. As shown in FIG. 1 , the value calculation module 30 is connected to the data capture module 20 to obtain transaction information of a specific warrant product from the data capture module 20 . The purpose of the value calculation module 30 is to calculate the value of the warrant item. In a preferred embodiment of the present invention, the value calculated by the value calculation module 30 includes the rate difference between the subscription value of the specific warrant product and the discounted selling value. In both cases, the subscription value difference rate is the true value of the warrant warrants (call warrants) that purchase the specific underlying securities at the strike price on the agreed expiration date; and the discretionary value difference rate is indicated in the agreement The true value of the warrants (put warrants) for a particular underlying security at the strike price. However, in a particular embodiment, the value calculated by the value calculation module 30 includes only the subscription value difference rate for the particular warrant item. This is because investors who usually buy warrants prefer to buy buy warrants and are not technically restricted.

In the present invention, the value calculation module 30 calculates the subscription value difference rate of the warrant product by the following formula 1: (Formula 1)

Wherein, the selling price is the issue price or the buying and selling price of the warrant commodity; the inside and outside of the price is the market buying and selling price of the securities related securities (the underlying securities) of the warrant ( The number of quotients divided by the strike price after deducting the strike price: (Formula 2)

In the calculation, the underlying stock trading price is not limited to the calculation of the effective market price at the time, but may be the previous day closing price or the market price at any one time. In addition, the underlying stock trading price can also be an average price.

In addition, the value calculation module 30 further calculates the difference between the selling price of the warrant product in the following formula: (Formula 3)

The warrant commodity value evaluation system 100 provides a display module 40 for displaying the warrant commodity value information calculated by the value calculation module 30 together with the description information of the warrant commodity on the display device 41. As shown in FIG. 1 , the display module 40 is connected to the data capture module 20 and the value calculation module 20 , and includes a display device 41 . The display device 41 can simultaneously display the description information of the plurality of warrant products, and the calculated difference between the subscription value and/or the quoted value of each of the warrant products.

In an advantageous application of the present invention, the subscription value difference rate and/or the subscription price value difference rate is displayed together with the due date information of the corresponding warrant product, preferably from the due date date. Although not willing to be bound by any theory, the inventors have found that, except for the subscription value difference rate, which is the true value of the purchase warrant, and the rate of sale of the warrant value indicates the true value of the warrant, the distance The number of days on the expiration date will still affect the value of the warrants. To put it bluntly, even if a warrant product has a fairly high value difference, if the number of days to achieve the value difference is relatively large, the value of the warrant will be discounted. The preferred embodiment of the present invention displays the value difference rate together with the due date information to provide a more useful reference for investing.

Since the display device 41 can display the description information of the plurality of warrant products, in the preferred embodiment of the present invention, the display module 40 further provides a comparison function. For example, a plurality of warrant items, preferably warrant items belonging to the same ticket group, for example, a plurality of warrant items subject to one type of security, are displayed together in the display device 41. In order to provide an investor reference, the module 40 arranges the displayed warrant items according to the calculated value difference rate, or only displays the value information of the highest ranked limited number of warrant items and the description information thereof.

As described above, the description information of the warrant commodity may include the issue price or the purchase price, the due date, the strike price, the exercise ratio, and the sale and purchase of the securities related to the warrant, in addition to the due date information. Price and other information.

In a preferred embodiment of the present invention, the warrant merchandise value assessment system 100 can additionally include a warrant merchandise selection module 50. FIG. 1 shows that the warrant item selection module 50 is connected to the data capture module 20, the input module 10 and the value calculation module 30. The warrant product selection module 50 selects a reservation value and/or a set number of days based on the selection parameter input by the user in the input module 10, and filters out the value difference rate higher than the predetermined value and/or distance. The warrant item whose expiration date is shorter than the set number of days is displayed on the display device 41. Such an embodiment can provide the most useful information for investors' reference. Items that do not meet the standard warrants are not required to be displayed to avoid confusion. In order to achieve the above purpose, the input module 10 must also include a predetermined value input field and a set date input field, which are self-evident.

The value difference rate proposed by the present invention is to closely link the relationship between the warrant and the underlying security, such as stocks. It allows investors to correctly understand the true value of the warrants, without being confused by the various trading conditions offered by the warrants.

According to the above description, the method for evaluating the value of the warrants provided by the present invention is applied to the above-mentioned warrant commodity value evaluation system for calculating the investment value of the plurality of warrant commodities that meet the user selection conditions. 2 is a flow chart showing an evaluation method of the warrant commodity value evaluation system of the present invention. The method of the present invention will be described below with reference to FIG.

As shown in FIG. 2, the warrant commodity value evaluation method of the present invention is used in a warrant commodity value evaluation system 100, and includes the following steps: In step 201, the warrant commodity value evaluation system 100 accepts user input for querying. Warrant product identification information. As mentioned above, the warrant product identification information includes any description information that can represent a particular warrant product or a group of warrants, such as a warrant description, name, code or warrant group description, name, code, and the like. In step 202, the system 100 searches for one or more warrant items in a warrant merchandise repository 200 based on the warrant merchandise identification information input by the user, and retrieves related transaction information of the warrant merchandise. As described above, the transaction information of the warrant commodity may be information such as the issue price or the purchase price, the maturity date, the strike price, the exercise ratio, and the purchase price of the securities related to the warrant. In step 203, the system 100 calculates the value of the warrant product according to the transaction information of the obtained warrant product, that is, the difference between the subscription value difference rate and the subscribed selling price value. In step 205, the system 100 displays the calculated value information, together with the description information of the warrant product, on a display device, preferably based on the value of the subscription value or the value of the discounted value. The displayed warrant items are sorted. As described above, the description information further includes the expiration date information of the corresponding warrant product, preferably the number of days from the expiration date.

The method for evaluating the value of the warrant commodity of the present invention may further comprise an optional selection step 204 of screening the value difference rate above the predetermined value and/or from the due date according to the reservation value set by the user and/or the number of set days. The warrants whose number of days is shorter than the set number of days. Then, in step 205, the selected warrant product description information is displayed.

The above is a description of several embodiments of the system and method for evaluating the value of the warrants of the present invention. It is not difficult for a person skilled in the art to understand the principles, spirit and function of the present invention after reading this specification, and to make further changes or derivatives. Such changes or derivatives are within the scope of the invention.

10‧‧‧Input module

11‧‧‧ graphical interface

20‧‧‧Data Capture Module

21‧‧‧Network communication device

30‧‧‧Computation Module

40‧‧‧Display module

41‧‧‧ display device

50‧‧‧Warrants Product Selection Module

100‧‧‧Warranty commodity value assessment system

200‧‧ ‧ Warrants Commodity Database

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a block diagram showing an embodiment of the Warranty Commodity Value Evaluation System of the present invention. Fig. 2 is a flow chart showing an embodiment of the method for evaluating the value of the warrants of the present invention.

Claims (20)

A warrant commodity value evaluation system includes: an input module for accepting user input of warrant product identification information to be queried; a data capture module, connecting the input module, and connecting at least one warrant commodity database According to the warrant product identification information input by the input module, one or more warrant products are searched in the warrant commodity database, and relevant transaction information of the warrant commodity is retrieved; a value calculation module is connected to the data. Taking a module to calculate the value of the warrant product based on the transaction information of the specific warrant product obtained by the module; and a display module connecting the data capture module and the value calculation module, and Included in the display device, the value information of the specific warrant product calculated by the value calculation module is displayed on the display device together with the description information of the warrant product; wherein the value calculation module calculates the ticket according to the following formula Rate of subscription value of goods: (Formula 1) Wherein, the selling price is the issue price or the purchase price of the warrant product, and the price is the market quotation price of the warrant-related securities (the underlying securities) minus the strike price divided by the quotient of the strike price: Formula 2) For example, the system for evaluating the value of warrants in item 1 of the patent application scope, wherein the value calculation module further calculates the rate of difference in the value of the sale price of the warrant product in the following formula: (Formula 3) For example, the claim commodity value evaluation system of claim 1 or 2, wherein the description information of the warrant commodity includes the number of days from the expiration date of the warrant commodity, and the issue price or the purchase price of the warrant commodity, and the expiration date At least one of the date, the strike price, the exercise rate, and the purchase price of the securities associated with the warrant. For example, the warrant commodity value evaluation system of claim 1 or 2, wherein the warrant commodity identification information includes at least one of the following information: a description, a name, a code, or a warrant product group of the warrant product The description, name, and code of the group. For example, the warrant commodity value evaluation system of claim 4, wherein the warrant commodity group includes a plurality of warrant commodities marked by a kind of securities. For example, the claim commodity value evaluation system of claim 1 or 2, wherein the relevant transaction information of the warrant commodity includes at least one of the following information: a distribution price or a purchase price of the warrant commodity, The date of the day, the strike price, the exercise rate, and the purchase price of the underlying securities associated with the warrant. For example, the warrant commodity value evaluation system of claim 6 wherein the bid price information of the underlying securities includes one of the following information: calculating the effective market price at the time of the value of the warrant commodity, the market price at any point, and An average price. For example, the warrant commodity value evaluation system of claim 7 wherein the bid price information of the underlying securities includes the closing price of the securities on the open market the previous day. For example, the claim commodity value evaluation system of claim 1 or 2, wherein the data capture module further comprises a network communication device for the data capture module to connect to the warrant commodity database via a communication network In order to obtain relevant transaction information of the warrant product. For example, the warrant product value evaluation system of claim 1 or 2, wherein the display module displays the value information of the plurality of warrant products together with the description information of the warrant products, according to the calculated value difference rate, and displays On the display device. For example, the warrant commodity value evaluation system of claim 10, wherein the display module only displays the value information of the limited number of warrant products with the highest ranking and the explanatory information thereof. For example, the warrant commodity value evaluation system of claim 1 or 2 further includes a warrant commodity selection module, which is connected to the data capture module, the input module and the value calculation module, and the input module Include a predetermined value input field and a set date input field; wherein the warrant product selection module selects the value calculation module to calculate, the value difference rate is higher than a predetermined value and/or shorter than the due date A warrant product of a set number of days is displayed on the display device. For example, the warrant commodity value evaluation system of claim 3 includes a warrant merchandise selection module connected to the data capture module, the input module and the value calculation module, and the input module includes a a predetermined value input field and a set date input field; wherein, after the warrant product selection module selects the value calculation module, the value difference rate is higher than a predetermined value and the expiration date is shorter than a set number of days The warrant item is displayed on the display device. An evaluation method for a warrant commodity value evaluation system, comprising: performing, by a computer device, the following steps: accepting a user inputting a warrant product identification information to be queried; and searching for a type or a warrant in the warrant commodity database according to the input warrant commodity identification information A plurality of warrant products, and extracting relevant transaction information of the warrant commodity; according to the transaction information of the obtained specific warrant commodity, the following formula 1 calculates the subscription value difference rate of the warrant commodity: (Formula 1) Wherein, the selling price is the issue price or the purchase price of the warrant product, and the price is the market quotation price of the warrant-related securities (the underlying securities) minus the strike price divided by the quotient of the strike price: Formula 2) And the calculated value difference rate information, together with the description information of the warrant product, is displayed on a display device. An evaluation method for a warrant commodity value evaluation system, comprising: performing, by a computer device, the following steps: accepting a user inputting a warrant product identification information to be queried; and searching for a type or a warrant in the warrant commodity database according to the input warrant commodity identification information a plurality of warrants products, and extracting relevant transaction information of the warrants; according to the transaction information of the obtained specific warrants, the following formula 3 calculates the difference between the quoted value of the warrants: (Formula 3) Wherein, the selling price is the issue price or the purchase price of the warrant commodity, and the price is the market trade price of the warrant commodity-related securities (the underlying securities) minus the strike price divided by the strike price: And the calculated value difference rate information, together with the description information of the warrant product, is displayed on a display device. For example, the method of claim 14 or 15, wherein the description information further includes information on the due date of the corresponding warrant product. The method of claim 16, wherein the expiration date information includes information on the number of days from the expiration date. The method of claim 14 or 15, further comprising, prior to the displaying step, screening the warrant items having a calculated value difference rate higher than a predetermined value for display on the display device. The method of claim 16, further comprising screening, before the displaying step, a calculated warrant product having a value difference rate higher than a predetermined value and shorter than a set date from the expiration date for display on the display The steps on the device. The method of claim 17, further comprising screening, before the displaying step, a calculated warrant value having a value difference rate higher than a predetermined value and being shorter than a set number of days from the expiration date for display on the display The steps on the device.