Callable Bull Contracts vs. Callable Bear Contracts: A Comprehensive Comparison of Directional Investment Instruments
Bull and Bear Contracts are Hong Kong’s go-to directional leveraged products. Bull Contracts target rallies; Bear Contracts capture declines—both feature mandatory call events. This article compares structure, risks, and selection strategy.
TL;DR: Bull and bear certificates (collectively, CBBCs—Callable Bull/Bear Contracts) are directional derivatives commonly traded in Hong Kong, designed to capture upward and downward market moves, respectively. Both offer leverage, but they come with a Mandatory Call feature: once the Call Price is touched, the contract terminates. Which one to use depends on your market-direction view, risk tolerance, and position-management strategy.
In Hong Kong’s financial market, CBBCs (Callable Bull/Bear Contracts) are leveraged derivatives that are popular with retail investors. Whether you are bullish on the market or bearish on the outlook, CBBCs allow you to take a larger position with less capital. However, bull and bear certificates differ fundamentally in direction, structure, and risk. Understanding these differences helps you develop an appropriate investment strategy. Below, we break down how bull and bear certificates work, their key terms, pros and cons, and selection considerations to help you master the essentials before investing.
What Are CBBCs? Understanding This Directional Instrument
CBBCs are structured derivatives issued by investment banks and listed for trading on The Stock Exchange of Hong Kong (SEHK). They track the price movements of an underlying asset (mainly an index or an individual stock) without requiring you to pay the full amount needed to buy the underlying outright—using leverage to achieve amplified exposure.
CBBCs come in two types: you buy a bull certificate when you are bullish on the underlying, and a bear certificate when you are bearish. Because they trade similarly to stocks, investors can buy and sell them in the secondary market using a standard securities account, with T+2 settlement, making the entry barrier relatively low.
The most distinctive feature of CBBCs is that they include two key terms: the Call Price and the Strike Price. This is also the main structural difference versus warrants. If the underlying price touches the Call Price, the CBBC is mandatorily terminated, and investors may lose most or even all of their principal.
According to Hong Kong Exchanges and Clearing (HKEX), only R-type CBBCs are currently available in the Hong Kong market, meaning the Call Price and the Strike Price are set at different levels.
Bull vs Bear Certificates: Core Directional Comparison
Bull and bear certificates are designed to provide opposite directional exposure. Which one you choose depends entirely on your view of market direction.
Bull Certificates: Capturing Upside Opportunities
Buying a bull certificate means you are optimistic about the underlying’s future performance. When the underlying price rises, the bull certificate’s value rises as well, allowing investors to profit. The Call Price of a bull certificate is set below the underlying’s current price; if the underlying falls to the Call Price level, the bull certificate will be mandatorily called.
Using Hang Seng Index (HSI) CBBCs as an example: if an investor expects the HSI to rise, they can buy the corresponding HSI bull certificate. If the HSI reaches the target level, the investor can sell the bull certificate to realize gains.
Bear Certificates: Capturing Downside Opportunities
Bear certificates work in the opposite direction. Buying a bear certificate means you are bearish on the underlying and expect its price to fall. The lower the underlying price, the higher the bear certificate’s value. The Call Price of a bear certificate is set above the underlying’s current price; if the underlying moves against you and rises to the Call Price, the contract terminates.
| Comparison Item | Bull Certificate | Bear Certificate |
|---|---|---|
| Investment direction | Bullish (expecting an uptrend) | Bearish (expecting a downtrend) |
| Call Price location | Below current price | Above current price |
| When the underlying rises | Bull price rises | Bear price falls |
| When the underlying falls | Bull price falls | Bear price rises |
| Analogous instrument | Similar to a Call warrant | Similar to a Put warrant |
Leverage and Funding Costs
One of the most attractive features of CBBCs is their high leverage. Because the issuer effectively lends part of the capital so investors can gain exposure to the underlying, CBBC pricing includes funding costs (i.e., the premium), which is the price investors pay for using leverage.
Example of How Leverage Works
Assume a stock is trading at HKD 100. A bull certificate has a Strike Price of HKD 80 and a conversion ratio of 1:1. The investor only needs to pay HKD 20 (plus funding costs) to gain exposure equivalent to HKD 100 of the underlying, implying leverage of about 5x. If the stock rises by 10%, the bull certificate’s theoretical return is about 50% (HKD 10 increase ÷ HKD 20 principal). (This is a hypothetical example for illustration only.)
The Impact of Funding Costs
Funding costs decrease as the CBBC’s remaining tenor shortens, so you should pay attention to the premium when buying. Generally, the longer the remaining tenor, the higher the proportion attributable to funding costs. For some newly issued CBBCs, funding costs can account for a significant share of the price, and investors should carefully assess how funding costs affect holding costs.
Tip: Funding costs are an implicit cost of holding CBBCs. If your holding period is long, even if your directional view is correct, the drag from funding costs may erode returns.
Mandatory Call Mechanism: Commonly Known as “Getting Knocked Out”
The Mandatory Call mechanism is the most critical—and riskiest—feature of CBBCs. Once the underlying price touches the Call Price at any time during a trading session, the CBBC stops trading immediately and the contract terminates early.
Residual Value of R-Type CBBCs
All CBBCs currently circulating in Hong Kong are R-type CBBCs, where the Call Price and the Strike Price are set at different levels. For R-type bull certificates, the Call Price is above the Strike Price; for R-type bear certificates, the Call Price is below the Strike Price. Therefore, when a Mandatory Call event occurs, investors may still recover a small residual value, though it is often far below the original investment.
Residual value is calculated as follows:
- Bull residual value: (lowest underlying price during the observation period − Strike Price) ÷ conversion ratio
- Bear residual value: (Strike Price − highest underlying price during the observation period) ÷ conversion ratio
The observation period covers the remaining part of the trading session in which the Mandatory Call occurs and the immediately following full trading session.
Note: Even for R-type CBBCs, if the market moves sharply, the residual value may be zero. After a Mandatory Call, investors may lose their entire invested amount.
CBBCs vs Warrants: How to Choose the Right Instrument
Many investors hesitate between CBBCs and warrants. While both are leveraged derivatives, their structural differences are significant.
Advantages of CBBCs
CBBCs are not directly affected by implied volatility. Even if market volatility declines, CBBC pricing will not be dragged down for that reason. In contrast, warrant values are more sensitive to implied volatility; when implied volatility contracts, warrant prices may fall even if your directional view is correct. In addition, CBBCs typically offer higher effective leverage than warrants, which is one reason some return-seeking investors consider them.
Another feature is that CBBCs traded on HKEX are exempt from stamp duty, helping reduce short-term trading costs.
Advantages of Warrants
Warrants do not have a Mandatory Call mechanism. Even if the market temporarily moves against you, as long as the market returns as expected before expiry, warrants may still benefit. In more volatile markets or when a gap move is expected, warrants can better avoid the risk of being forcibly terminated due to a momentary touch of the Call Price.
In addition, warrants can be issued on a broader range of stocks, including mid- and small-cap names, offering more choices than CBBCs. To learn more about warrants’ characteristics in implied volatility, premium pricing, and the issuer’s role, see Comparative Analysis of Call Warrants and Put Warrants。
| Comparison Item | CBBCs | Warrants |
|---|---|---|
| Mandatory Call mechanism | Yes (terminates once the Call Price is touched) | No |
| Implied volatility impact | Limited | Significant |
| Effective leverage | Usually higher | Usually lower |
| Time value decay | Relatively less | More pronounced |
| Stamp duty exemption | Yes | No |
| Range of eligible stocks | Narrower | Broader |
| Suitable market conditions | Clear trend, relatively stable volatility | Volatile markets or expected gap moves |
To learn about warrant and CBBC trading services offered by Longbridge Securities, please refer to the Longbridge investment products page。
How to Choose the Right CBBC
After you establish a directional view, selecting a specific CBBC requires considering the following six key indicators:
Distance to the Call Price
The farther the Call Price is from the underlying’s current price, the lower the chance of being mandatorily called, but the lower the leverage. Conversely, the closer the Call Price is to the current price, the higher the leverage—and the higher the knockout risk. Investors should make a trade-off between leverage and Call Price distance based on their own risk tolerance and holding expectations.
Conversion Ratio and Premium
The conversion ratio indicates how many units of the underlying each CBBC represents. The lower the ratio, the more sensitive the CBBC is to price movements of the underlying. The premium represents the extra cost of buying a CBBC relative to holding the underlying directly; choosing a lower premium can help reduce holding costs.
Street Ratio and Bid–Ask Spread
The street ratio reflects the proportion held by other market investors. When the street ratio is too high, the issuer’s pricing ability may be affected and bid–ask spreads may widen, increasing transaction costs. Choosing CBBCs with narrower bid–ask spreads can improve trading efficiency.
Remaining Tenor
Investors planning to hold medium- to long-term positions should choose CBBCs with a longer remaining tenor to avoid the CBBC expiring before the target is reached.
Tip: Investors should carefully screen and compare the terms of different CBBCs to make a more effective selection.
Key Risks of CBBCs
Before investing in CBBCs, investors must fully understand the following risks:
Mandatory Call risk: This is the most distinctive risk of CBBCs. If the underlying touches the Call Price during any trading session, the CBBC will be mandatorily called, and investors may lose most or all of their principal.
Leverage risk: Leverage amplifies returns, but it also amplifies losses. A small adverse move in the market can cause a CBBC to depreciate rapidly.
Credit risk: CBBCs are not collateralized. Holders are unsecured creditors of the issuer. If the issuer encounters financial problems, investors may suffer losses.
Liquidity risk: Some CBBCs trade with low volume and wide bid–ask spreads, which may affect execution efficiency and trading costs.
Funding cost drag: The longer the holding period, the greater the cumulative impact of funding costs. Even if the direction is correct, long-term holding may erode returns.
CBBCs are high-risk financial products and are only suitable for investors who can bear the possibility of a total loss. The Securities and Futures Commission (SFC) also requires issuers to clearly disclose the relevant risks in product documentation.
FAQs
What is the difference between CBBCs and warrants?
The primary difference is that CBBCs have a Mandatory Call mechanism (the Call Price). Once the underlying touches the Call Price, the CBBC terminates immediately, and investors may lose most of their principal. Warrants do not have this mechanism, but they are more affected by implied volatility and time value decay. In addition, CBBCs typically have higher effective leverage than warrants, and trading is exempt from stamp duty.
After a CBBC is “knocked out,” can I still recover any funds?
It depends on the CBBC type. The Hong Kong market currently circulates R-type CBBCs, where the Call Price and the Strike Price are at different levels. After a Mandatory Call, investors may receive a small residual value. However, if the market moves sharply during the observation period, the residual value may be zero.
How should beginners start learning about CBBCs?
Generally, you should first use educational resources to understand CBBC structures, terms, and risks, then gradually build experience based on your own situation. Understanding the Mandatory Call mechanism, funding costs, and leverage principles is the foundation for getting started.
What characteristics should I pay attention to when using CBBCs?
CBBCs are leveraged instruments with a Mandatory Call mechanism, and using them typically requires directional judgment and active position management. Because of Mandatory Call risk, CBBCs tend to be more aligned with short- to medium-term trading. If held long-term without proper management, the impact of funding costs and knockout risk becomes more pronounced.
What assets do CBBCs track?
In Hong Kong, CBBCs mainly track the Hang Seng Index (HSI) and selected blue-chip stocks. HSI-linked CBBCs offer the widest selection and higher liquidity. Single-stock CBBCs are relatively fewer and are mainly concentrated in large-cap blue chips. To understand the HSI’s constituents’ weightings and performance characteristics, see Investment Strategies for Tracking the Hang Seng Index。
Summary
Bull and bear certificates are distinctive directional leveraged instruments in the Hong Kong market, serving investors who are bullish and bearish, respectively. Their core commonalities are leverage and the Mandatory Call mechanism, while their biggest difference is direction: bull certificates capture upside moves, and bear certificates capture downside moves.
Compared with warrants, CBBCs typically offer higher effective leverage, are less affected by implied volatility, and are exempt from stamp duty—advantages that can be meaningful in clearly trending markets. However, the Mandatory Call mechanism is a double-edged sword: a small misstep can lead to being “knocked out” and losing most of your principal.
Which instrument to choose depends on your investment objectives, risk tolerance, market view, and experience level. Regardless of the instrument, you must fully understand how it works, its risk profile, and trading rules, and establish a robust risk management plan. You can learn more via Longbridge Academy or download the Longbridge App to further your investing knowledge.
