The People’s Bank of China (PBOC) is tasked with setting the daily midpoint for the yuan (RMB) against the US dollar. This forms part of the country’s managed floating exchange rate system.
This system permits the yuan’s value to move within a specific “band” of +/- 2% around this central rate. Recently, the PBOC set the midpoint at 7.1384, compared to an estimated 7.1897.
Currency Stability and Adjustment
The previous closing rate was recorded at 7.1830. This adjustment is part of the central bank’s responsibility to maintain currency stability.
Today’s midpoint fix at 7.1384 is a significant surprise, coming in much stronger than the market’s expectation of 7.1897. This is a clear signal that the central bank intends to defend the yuan and curb further depreciation. The move is a forceful pushback against the recent bearish sentiment we’ve seen build over the summer.
This intervention comes after recent economic data for July 2025 showed weaker-than-expected retail sales and a rise in youth unemployment to 21.5%. These figures have been putting downward pressure on the currency. The central bank’s action today is likely a direct response to prevent that economic softness from turning into a disorderly currency decline.
Impact on Derivative Traders
We have seen this playbook before, particularly during the summer of 2023 when the PBOC used consistently strong fixes to manage depreciation pressures around the 7.30 level. That period showed us that the central bank has a low tolerance for rapid, one-way bets against its currency. History suggests these strong fixes can persist for several weeks to break speculative momentum.
For derivative traders, this action significantly increases the risk of holding long USD/CNY positions, as you are now fighting against direct central bank policy. Implied volatility in USD/CNY options will likely increase, making strategies like selling out-of-the-money call options or establishing bearish call spreads more attractive. These positions benefit from the currency struggling to weaken past the levels the PBOC is now defending.
