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What's DW
What's DW


Derivative Warrants are very popular investments worldwide, especially in Germany and in Asia such as Hong Kong, Taiwan, Singapore, and Korea. In Thailand, Derivative Warrants SCB-C1 and SCIB-C1 were issued by the Financial Institutions Development Fund (FIDF) and were very popular with investors many years ago. KGI became the first brokerage to issue a Derivative Warrant (PTT13CA) in Thailand, in June 2009.

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Derivative Warrants (DW) Thai   Hong Kong
Covered Warrant Germany
Structured Warrant Signapore
Call (Put) Warrant Taiwan Malaysia
Equity-Linked Warrant South   Korea
What's DW?
  • Like an option or a traditional warrant, a DW is securities that give the holder the right but not the obligation to buy/sell an underlying asset at an agreed price at specified time.
  • The issuer of a DW is a financial company authorized by the SEC to issue DW, not the underlying company of the DW, for example, Securities Company.
  • Normally, underlying asset is stock in SET100, Index or ETF.
  • There are two types of DW which give the right to buy (Call Warrant) and the right to sell (Put Warrant) the underlying asset.
  • There are 2 types of settlement, Physical & Cash Settlement.
  • There are 3 types of collateral held by issuer which are Fully-Collateralized, Partial-Collateralized, and Non-Collateralized.
Comparison of Company Warrant and DW
Type Warrant DW
Asset Type Securities Securities
Issuer Underlying Company SET
Exchange SET SET SET
Underlying Asset Listed Stock Stock in SET100, Index or ETF which specified in the definitions of the SET Notification.
Tenor Up to 10 Years 2 Months - 2 Years
Type of DW Right to Buy  (Call) Right to buy (Call)
Exercise Type European / Semi American European
Settlement Type Physical Cash
Type of Physical Settlement New Stock None
Short Sell No No
Market Maker (MM) No At least 1 MM
Sector on SET Warrants Derivative Warrants
Ceiling / Floor
+/- 30% of Underlying Asset Price +/- 30% of the previous closing price of the Underlying Asset multiplied by the exercise ratio
Commission Same rate as stocks Same rate as stocks
UUUU Underlying Asset
II Registered No. of Issued Broker (KGI = 13)
C The Right to Buy (Call)
YYMM Year and month for last trading period
A Series A ( A-Z )
Advantages of investing in DW 1) High Gearing: An investor can invest a much smaller amount in a DW compared with the underlying stock, and may still obtain a similar return when the underlying stock rises in price.

DW of ABCD Co, Ltd. issued by KGI #Series A (Call Warrant)

Detail as of 14 February 19 : ABCD13C1906A
Maturity Date : 28 June 19
Last Trading Date : 25 June 19
Underlying Asset : ABCD
Exercise Price : 110 Bath
Exercise Ratio : 1 DW per 1 ABCD
Price of ABCD : 100 Bath
Price of ABCD13C1906A   5 Bath


On 2 July 13, if an investor has 1,000,000 Baht, investor can

  • Option 1 Invest in ABCD, buy 10,000 shares at 100 Baht (10,000 x 100 = 1,000,000 Baht) or

  • Option 2 Invest in ABCD13C1906A, buy 200,000 units at 5 Baht (200,000 x 5 = 1,000,000 Baht)

    On 13 Dec 13, if price of both securities are;
     Price of ABCD           :               120  Bath
     Price of ABCD13C1906A    :                 10  Bath

The investor can profit on each option as follows;

  • Option 1  if investor sells ABCD at 120 Baht, profit will be 200,000 Baht (10,000 x (120-100)) or 20%
  • Option 2  if investor sells ABCD13C1906A at 10 Baht, profit will be 1,000,000 Baht (200,000 x (10-5))  or 100%

Basically, with the same amount invested, if the price of the stock goes up, investing in a DW will give a higher return than investing in the stock. However, investor should aware when the price of the underlying stock goes down, investing in the DW will suffer a greater loss than investing in the stock too.

2)   Managing Investment Capital: Where an investor already owns the underlying shares of the DW, the investor can switch from the underlying shares to the DW, which requires a lower investment. Thus the remaining capital can be invested in other securities for higher return.
If an investor has 10,000 shares of ABCD, he can sell all the ABCD shares at 100 Baht and buy 10,000 units of ABCD13C1906A at 5 Baht. The investor will still gain when ABCD share price goes up and he will also safe keep 950,000 Baht (1,000,000 50,000)

3)   Unlimited Gain with Limited Loss: The maximum loss a DW holder faces is the original purchase price. However, there is no limit to the up side as the DW value will increase in line with the underlying share price.

4)  Market Maker: For company warrants there is no market maker. However, for each DW, the SET requires at least 1 market maker to provide liquidity, so investors can be assured that they will be able to buy and sell DW at anytime.

On the exercise date, if the market price of the underlying share is above the exercise price, the DW is in the money, the DW will automatically be exercised and the holder will receive cash (Cash Settlement) from the issuer. DW holder does not need to   submit any documents as the exercise is automatic.  
Investor has DW 1,000 units with underlying asset price of 15 Baht, exercise price of 10 Baht, and exercise ratio of 1DW :1stock. On maturity the holder will receive cash payment of 5,000 Baht ((15-10) x 1,000).

Note: Cash payments from the exercise of DW at maturity must be subject to Thai taxation

1)   Credit Risk: If the DW exercise price is above the market price on the exercise date, the DW holder will receive a cash payment from the DW issuer. Credit risk refers to the risk that the issuer is unable to make the payment on maturity. To minimize this risk, the SEC must approve every DW issuer before any issue. Each DW issuer must also have an investment grade credit rating.

Price Risk: The price of a DW will vary based on supply and demand and also on the price of the underlying asset. The following factors can also affect the price of a DW.
Factor Up / Down Effect on DW Price
Price of Underlying Asset
Time to Maturity
Interest Rate
If any of the above factors change they may affect the price of the DW. These factors will also be expected to affect traditional warrants in a similar way.

3)   Limited Tenor: An investor can buy a DW during its IPO period or buy it on the SET after it begins trading up to the last trading day. However the maturity date of the DW is fixed, and set at the time of the IPO, at between 2 months and 2 years. After the maturity date the DW will have no value and cannot be traded on the SET.

The issuer can use the DW to manage its risk. The issuer will partially buy the underlying asset to reduce its risk. If the price of the underlying asset increases, the value of the underlying asset held by issuer will also increase. On the other hand, if the price of the underlying asset decreases, the issuer may sell the underlying asset. When a DW is traded on the SET the brokers involved will charge a commission the commission is fixed at 0.25% regardless of whether the broker is the DW issuer or not.

Investors can buy and sell DW just the same as other shares and warrants listed on the SET. There are two ways to buy a DW:
1)   In the IPO
2)   On the SET after trading starts

Investor who has any questions related to DW, please feel free to contact KGI Equity Derivative Department.