The People’s Bank of China (PBOC) is tasked with setting the daily midpoint of the yuan. This midpoint is part of a managed floating exchange rate system that enables the yuan to vary within a specific band around a central reference rate.
The current trading band is set at +/- 2%, affecting how much the yuan can fluctuate in a single trading day. Each morning, PBOC determines this midpoint for the yuan against multiple currencies, mainly the US dollar, while considering market dynamics and global currency trends.
Yuan Movement Limitations
The yuan is allowed to move within a specified range around this midpoint. The extent of these movements is limited to the +/- 2% trading band. Should the yuan approach these limits or become excessively volatile, the PBOC may step in to stabilise the currency.
Such intervention involves buying or selling the yuan to ensure its value stays within desired limits. This approach allows for a gradual and controlled adjustment of the yuan’s value in response to economic conditions and policy aims.
The market’s expectation for the yuan’s reference rate at 7.1479 signals a continued environment of gentle, managed depreciation. We see this as a reflection of fundamental pressures, including a US-China interest rate differential that has persisted through 2025, with US 10-year yields currently hovering around 4.3% compared to China’s 2.4%. This makes holding US dollars more attractive and puts a natural ceiling on the yuan’s value.
We must pay close attention to the daily fix versus market estimates over the next few weeks. Looking back at the patterns of 2023 and 2024, the central bank consistently set the daily midpoint significantly stronger than expectations to slow the yuan’s slide. If this pattern continues, it signals an official desire to maintain stability and prevent the currency from weakening too quickly.
Investment Strategies In Yuan Environment
For derivatives, this managed environment suggests that implied volatility may be overpriced. One-month USD/CNH implied volatility has recently edged up to 4.5%, but the central bank’s tight control within its 2% band makes a sudden, large move unlikely. Selling option strangles or straddles could be a viable strategy to collect premium from this expected stability.
The positive carry from holding long USD/CNY positions via the forward market remains a compelling trade. The difference in interest rates means traders are paid to be long the dollar against the yuan. This strategy works well if we anticipate the central bank will permit a slow, grinding depreciation rather than intervene to strengthen the yuan significantly.
A key risk to this view would be a sudden policy shift from Beijing aimed at boosting the economy, or weaker-than-expected US economic data that alters the interest rate outlook. We saw how quickly sentiment changed after surprise policy announcements in late 2024. Therefore, using defined-risk option strategies, like buying USD/CNY call spreads, could be a more prudent way to express a bullish view on the dollar.
