The rally, driven by a flood of short-term cash rather than long-term investment, has analysts warning of a potential sharp reversal.
China's 10-year government bond yield fell below the key 1.75% level on Wednesday, a move driven by an excess of cheap money that analysts see as unsustainable and highly vulnerable to central bank action. The rally pushed the 30-year government bond yield down to 2.25% in a concentrated burst of market activity.
"The rally's 'smoothest phase' is nearing its end," analysts at Huatai Securities said in an April 22 note, warning that while risks are controllable in the next one to two weeks, medium-term risks are quietly accumulating.
The move was underpinned by the DR001, a key money market rate, hovering around 1.2% — significantly below the People's Bank of China's (PBoC) policy rate. This signals a system flush with cash and a lack of attractive investment alternatives, a point reinforced by a recent small net cash injection by the PBoC that surprised traders, according to data compiled by Bloomberg.
The core risk is a potential liquidity withdrawal by the central bank. With money-market rates approaching the lower limit of the PBoC's informal corridor, a policy-driven snapback could trigger a "stampede" of selling from the trading-focused funds that have fueled the rally, Zhongyou Securities noted.
A Rally Built on Cash
The bond rally's foundation is a period of extreme and persistent liquidity, which Huatai Securities analysts called the core support. A combination of factors, including the central bank's liquidity injections earlier in the year and significant fiscal deposits entering the market, have left banks flush with cash. This, coupled with weakening private-sector credit demand, has resulted in funds flooding the bond market. The 10-month state-owned bank commercial paper rate falling to 0.79%, a multi-year low, confirms this trend of weak credit uptake.
A second major driver has been the behavior of trading accounts, primarily public mutual funds. These funds have seen steady inflows, creating a self-reinforcing cycle: cash inflows push bond yields down, which in turn attracts more fund subscriptions. This contrasts sharply with the behavior of long-term "configuration accounts," such as banks and insurance companies, which have reportedly been taking profits or staying on the sidelines.
A Fragile Foundation
The divergence between buyers reveals the rally's structural vulnerability. The move is being driven by short-term traders chasing yields lower, not by long-term investors who typically provide market stability. Zhongyou Securities pointed out that while bond yields have fallen, the term premium—the extra yield for holding longer-dated bonds—has not compressed significantly, suggesting underlying concern about future inflation and risk.
This indicates the rally is a story of excess cash being pushed into longer-duration bonds out of necessity, not a fundamental reassessment of long-term economic risk. While the People's Bank of China has shown some tolerance for the low rates with minor cash injections, analysts believe its patience has a limit. Should the central bank act to guide rates back toward the policy level, the crowded trade could unwind rapidly, leading to a sharp spike in yields.
This article is for informational purposes only and does not constitute investment advice.
