The People’s Bank of China (PBOC) is responsible for setting the daily midpoint of the yuan, known as the renminbi (RMB), against a basket of currencies, primarily the US dollar. The upcoming USD/CNY reference rate is estimated to be set at 7.1852, with the announcement due around 0115 GMT.
The PBOC operates a managed floating exchange rate system, allowing the yuan’s value to fluctuate within a specific range around a central reference rate or midpoint. This trading band is currently set at +/- 2%, meaning the yuan could appreciate or depreciate by up to 2% from the midpoint during a trading day.
Factors Influencing The Yuan
The central bank considers market supply and demand, economic indicators, and international currency market fluctuations when setting the daily midpoint. If the yuan approaches the limit of its trading band or experiences excessive volatility, the PBOC may intervene in the foreign exchange market. This intervention involves buying or selling the yuan to stabilise its value, ensuring a controlled and gradual adjustment of the currency’s overall value.
The People’s Bank of China is signaling its intent to slow the yuan’s depreciation with its daily reference rate. The expected fix of 7.1852 is notably stronger than where the market has been trading offshore, with USD/CNH recently testing the 7.21 level. This shows us the central bank is leaning against market pressure and will not allow a rapid slide in the currency’s value.
This managed stability comes amid diverging economic data we have seen over the past month. China’s July 2025 industrial production figures came in below expectations at 3.5% year-over-year, while the latest US Federal Reserve minutes from late July 2025 suggest rates will remain elevated. These fundamental factors are what is driving the underlying market desire for a weaker yuan against a strong dollar.
For derivative traders, this creates a classic range-bound environment enforced by policy. We should consider strategies that benefit from low realized volatility, as the PBOC is effectively capping the daily upside on USD/CNY. Selling options to collect premium could be attractive, as the central bank’s actions are likely to keep the pair within a predictable, tight band in the short term.
Past Strategies And Future Risks
Looking back, we saw a similar pattern play out through much of 2023 when the central bank defended the yuan against significant depreciation pressures. The PBOC consistently used its daily fix to anchor the currency, even when economic fundamentals pointed to further weakness. Their current playbook appears to be a direct repeat of that successful strategy to prevent disorderly capital outflows.
The key risk in the coming weeks is if economic data from China deteriorates so sharply that the PBOC is forced to allow a larger, one-off devaluation. We should therefore remain watchful of any breach of key psychological levels, like the 7.30 mark that acted as a major line of defense in the past. Such a move would signal a major policy shift and a move from a range-trading to a directional strategy.
