With the Mid-Autumn Festival and National Day holidays approaching, the exchanges will be closed from September 25 to September 27 and from October 1 to October 7. For investors with idle cash sitting in their stock accounts, figuring out how to boost the efficiency of those funds during the market shutdown has become a hot topic again. Industry insiders point out that exchange-traded reverse repurchase agreements, commonly known as treasury bond reverse repos, are a top choice for holiday investing due to their high safety, simple operation, and flexible terms. Furthermore, an advanced approach that pairs treasury reverse repos with bond ETFs could further elevate the experience of putting idle funds to work.

How to Play It Today: One Day, Four Days of Interest

For the upcoming Mid-Autumn holiday, investors aiming for maximum capital efficiency can opt for a 1-day reverse repo, which accrues 4 days of interest, with funds becoming available the very next day. For those who are taking early leave and lack the time for frequent trading, a 7-day reverse repo is a solid alternative, locking in 14 days of interest, with funds accessible on September 30. Ahead of the National Day break, executing a 2-day product on September 28 will earn interest for 9 days, leaving funds available on September 30 and withdrawable on October 8. Alternatively, trading a 1-day product on September 29 secures 8 days of interest, with the same availability on September 30 and withdrawability on October 8. In practical terms, any stock account can participate. During trading hours, which run until 15:30, investors can search for "General Reverse Repo" in the trading software menu bar, click the button, select the product, hit "Place Order," and then set the lending rate and amount to execute the trade.

The Advanced Move: Reverse Repo Plus Bond ETF, One Principal, Two Investments

Beyond the basics, investors can explore the sophisticated pairing of "treasury reverse repo plus bond ETF." The core idea of this strategy is to lock in holiday interest in advance through the reverse repo, then, once funds are returned on the last trading day before the break, buy a rate-bond ETF to keep capturing bond coupon income during the holiday. This effectively delivers "one pool of capital, two investments." Specifically, investors need to time the availability of reverse repo funds to land on September 30. For example, executing a 1-day reverse repo on September 23 locks in 4 days of repo interest upfront; then, when funds become usable on September 24, they can be deployed into a rate-bond ETF, continuing to earn coupon interest throughout the Mid-Autumn break. The transition from repo maturity to ETF purchase can be seamless, maximizing the efficiency of idle funds. However, industry experts caution that returns from bond ETFs are made up of both coupon income and capital gains, meaning they can be swayed by secondary market price swings in the short term. As such, this strategy is better suited to rate-bond products with shorter durations and strong liquidity. Take the Treasury and Policy Bank Bond ETF Zhaoshang (511580) as an example: its underlying index has a duration of under three years, and as of September 21, its annualized volatility over the past three years was just 0.37%, significantly lower than the 0.84% annualized volatility of the broader bond fund index over the same period, making it a closer fit for the "reverse repo plus bond ETF" holiday money management approach. On the tool side, the Treasury and Policy Bank Bond ETF Zhaoshang (511580) has been included as a margin trading and securities lending target, allowing investors to borrow funds without reducing bond positions, adding more operational flexibility. It is important to note that while treasury reverse repos are relatively safe, their yields can fluctuate with market liquidity conditions, and bond ETF net values may also shift due to changes in market interest rates or price swings. Investors should make informed decisions based on their own cash flow needs, risk tolerance, and investment goals, and should refer to the latest announcements from exchanges and brokerages for specific trading rules and holiday arrangements.

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