BlockBeats News, August 12th. Ahead of the US CPI release, a easily overlooked technical risk in the bond market is heating up. Bank of America Securities pointed out in a recent report that trend-following CTAs maintained a high level of US Treasury futures shorts even after the unexpected weakness in US nonfarm data. Last week, US bond futures briefly approached the level at which short covering would be triggered, but as yields rebounded from their lows, the models showed that these short positions had not been forced to unwind.

CTA usually refers to systematic trend-following funds. These funds do not primarily assess inflation, fiscal policy, or Fed policy itself, but rather trade assets such as stock indices, US Treasuries, forex, gold, and oil based on price trends, volatility, and stop-loss thresholds. Simply put, the clearer the market trend, the more likely CTAs are to add to their positions in the same direction; once prices break through the model's key level in the opposite direction, they may concentrate on reducing positions or covering shorts. Therefore, CTAs act more like an "amplifier" of market trends, usually not the starting point of market direction, but they may amplify volatility after key data releases.

Bank of America stated that the 10-year US Treasury futures are still in a downtrend, with the current price around 108.72, the short covering trigger level at around 109.41, and a higher trigger level near 110.21. In other words, if the CPI is weaker than expected, pushing up US bond prices and lowering yields, CTAs may be forced to cover shorts, further amplifying the bond market rebound; if CPI is stronger, US bond yields rise, and CTA shorts may continue to stay in the market.

The report pointed out that macro data will determine the direction, while CTA positions will determine whether the market is amplified by mechanical funds. Since US bond yields directly impact tech stock valuations, the dollar, and gold, tonight's CPI data will also have a magnified impact on the cross-asset market. If yields decline rapidly, growth stocks and gold may find support; if inflation data is strong again, high-valuation tech stocks and precious metals will face repricing pressure.