国债期货基差系列三：TL合约多头替代前景探讨

1. Report Industry Investment Rating No relevant information provided. 2. Core View of the Report The report focuses on the cost - effectiveness and application prospects of the long - substitution strategy for the 30 - year Treasury bond futures (TL contract). By comparing the net - price trends, basis structures, and holding - return differences between the CTD bond of the TL contract and various spot targets, the report validates the feasibility of the long - substitution strategy. Back - testing shows that the strategy with the implied spread signal performs best, achieving annualized excess returns of 1.35%, 0.81%, and 1.05% for the 30 - year active bond, ChinaBond 30 - year Treasury bond index, and 30 - year Treasury bond ETF respectively. The TL contract can provide a more flexible allocation plan for investors [1][3][80]. 3. Summary According to the Table of Contents I. Current Cost - Effectiveness of the TL Contract as a Spot Long - Substitution (1) Net - Price Trend Correlation between the CTD Bond of the TL Contract and the 30 - Year Treasury Bond Active Bond/Index - The CTD bond of the TL contract is currently anchored to the 30 - year old bond. Its duration is shorter, yield is higher, and coupon rate is significantly higher than those of the 30 - year active bond and the ChinaBond 30 - year Treasury bond index. - In general, the net - price trends of the CTD bond of the TL contract and the 30 - year active bond/new index are similar. When the spread between new and old bonds narrows or widens significantly, differences may occur. In the case of a narrowing spread between new and old bonds and rising/volatile interest rates, the net - price trend of the CTD bond of the TL contract may be stronger than that of the 30 - year active bond/index; conversely, it may be weaker [2][9][11]. (2) Comparison of the Basis of the TL Contract and the Holding Returns of the 30 - Year Treasury Bond Active Bond/Index - The basis of the TL contract can be split into the holding return of the CTD bond and the net basis. The holding return accounts for a relatively high proportion in the basis pricing. - The coupon rate of the CTD bond of the TL contract is significantly higher than those of the 30 - year active bond and the ChinaBond 30 - year Treasury bond index. The net basis of the TL contract fluctuates greatly, increasing the probability of higher "coupon - like" returns compared to the 30 - year active bond/index [12][17][20]. (3) Rule Summary - The CTD bond of the current TL contract is anchored to the 30 - year old bond, with a shorter duration, higher yield, and higher coupon rate. - The TL contract is likely to have higher "coupon - like" returns than the 30 - year active bond/index. Assuming that the 30 - year Treasury bond interest rate does not rise close to 3% in the short term, the feature of the TL contract being anchored to the relatively high - coupon old bond is expected to continue [25][26]. II. Back - testing of the Long - Substitution Strategy (1) Comparison of Rolling Long - Position Returns between Futures and Spot - By comparing the continuous holding returns and risk performance of the TL Treasury bond futures contract, the 30 - year active bond, and the ChinaBond 30 - year Treasury bond index in the same back - testing period, the cost - effectiveness of the futures tool in a simple long - position allocation scenario can be intuitively judged. - Without considering capital costs, the annualized return of continuously holding the TL contract is only 0.66% lower than that of the 30 - year active bond. The difference between the annualized return of the ChinaBond 30 - year Treasury bond index and that of continuously holding the TL contract is small, indicating the feasibility of further back - testing the long - substitution strategy [29][31]. (2) Signal and Strategy Construction - Signal types: Three signals are constructed, including the historical quantile of the basis level, the "minimum" threshold for the basis convergence of futures converted from the spot holding return, and the superposition of the first two signals. - Strategy construction: Based on the above signals, a long - substitution strategy is back - tested on the TL contract. The futures closing date is set as the second - last trading day of the month before the futures contract delivery month. The spot targets include the 30 - year Treasury bond active bond, ChinaBond 30 - year Treasury bond index, and 30 - year Treasury bond ETF. The strategy also involves capital management and a specific back - testing time interval [32][34][37]. (3) Back - testing of the Futures Long - Substitution Strategy - For the 30 - year Treasury bond active bond, the implied spread signal performs best. The annualized return of signal 1 and the superposition signal is 11.74%, 1.35% higher than holding the 30 - year Treasury bond active bond, with better risk - return ratios. - For the ChinaBond 30 - year Treasury bond index, the implied spread signal 1 and the superposition signal also perform best, with an annualized return of 12.45%, 0.81% higher than holding the index, and better risk - control and risk - return indicators. - For the 30 - year Treasury bond ETF, using the implied spread signal, signal 1 and the superposition signal achieve an annualized return of 12.15%, 1.05% higher than holding the ETF [37][54][73]. (4) Conclusion - The TL contract can be regarded as a substitute for the 30 - year old Treasury bond. The long - substitution strategy with the implied spread as the core signal can effectively optimize asset - allocation efficiency, providing a differentiated allocation plan for investors, especially suitable for index - based assets such as the ChinaBond 30 - year Treasury bond index and 30 - year Treasury bond ETF [80].