China’s foreign exchange reserves fell short of expectations in March. They came in at $3.342tn, below the forecast of $3.4tn.
The data refers to month-on-month reserves. The shortfall versus forecasts was $58bn.
Yuan Weakness And Central Bank Defense
The drop in China’s foreign exchange reserves tells us the central bank is likely selling dollars to prop up its currency, the yuan. This intervention suggests there is significant underlying pressure for the yuan to weaken. We believe this trend will force their hand further in the coming weeks.
Given this, we are looking at buying call options on the USD/CNY pair. This strategy profits if the yuan continues to weaken against the dollar, a trend this data suggests is being actively fought but not reversed. The cost of intervention is becoming clear, and the market may test the central bank’s resolve.
This move makes sense when we look at recent data showing China’s export growth slowed to just 1.5% in the first quarter of 2026, well below expectations. At the same time, the US Dollar Index (DXY) has climbed to over 106 this past month, putting pressure on all emerging market currencies. During a similar period of dollar strength in late 2024, we saw the yuan weaken past 7.35 despite heavy intervention.
The selling of reserves often means selling U.S. government bonds, which could push U.S. interest rates higher. We anticipate the U.S. 10-year Treasury yield, currently at 4.45%, could re-test the 4.70% level seen earlier this year. Traders should consider derivatives that benefit from rising yields, such as short positions in Treasury note futures.
Positioning For Higher Currency Volatility
This tug-of-war between market forces and the central bank will likely increase currency volatility. Implied volatility on yuan options has already ticked up to a three-month high of 5.8%. We see an opportunity in buying straddles on the CNH, which would profit from a large price move in either direction.
Finally, a weakening yuan makes dollar-priced commodities more expensive for Chinese buyers, potentially hurting demand. We are looking at put options on industrial metals like copper. Copper inventories in Shanghai Futures Exchange warehouses have already swelled by 25% since the start of the year, indicating softening domestic demand.
