Every trading morning in China, the central bank publishes a single number that currency traders around the world watch closely: the daily reference rate for the yuan against the US dollar, usually called the fixing. With mainland markets returning on Thursday after the Golden Week holiday, it is a good moment to understand what the fixing is and why it can matter well beyond China.
Two versions of one currency
China’s currency is officially the renminbi, while the yuan is its unit, and the two names are used interchangeably. It trades in two places. Onshore yuan, known as CNY, trades on the mainland under the supervision of the People’s Bank of China. Offshore yuan, known as CNH, trades mainly in Hong Kong and other financial centres with fewer restrictions.
The two usually trade close together, but they can drift apart when sentiment shifts. The gap between them is watched as a sign of pressure on the currency.
How the fixing works
Each trading day before the mainland market opens, the People’s Bank of China sets a central parity rate for the yuan against the dollar. The onshore yuan is then allowed to trade within a band of 2% either side of that rate during the session.
The fixing is calculated using submissions from banks that act as market makers, along with other factors the central bank considers. In practice, the authorities have flexibility over the final number, and that is exactly why markets pay attention to it.
Why traders read it as a signal
The fixing tells markets how the authorities would like the currency to behave. If the rate is set noticeably stronger than models or market estimates suggest, it is often read as a sign that the central bank wants to slow a decline in the yuan. A weaker than expected fixing may suggest a greater tolerance for depreciation.
Analysts compare the official fixing with their own estimates every day. The size and direction of the gap are treated as a message, even though the central bank rarely explains its choices directly.
What happens around a holiday
During Golden Week the mainland market is closed, so the onshore yuan does not trade and no fixing is set. The offshore yuan in Hong Kong continues to move, absorbing news from the rest of the world. When the mainland reopens, the first fixing can show whether the authorities are comfortable with any moves that happened while they were away. Our explainer on what China’s Golden Week means for markets covers the wider picture.
The US dollar’s own direction matters here too. When the dollar is strong across the board, keeping the yuan steady requires a stronger fixing relative to market pressure. When the dollar softens, the authorities have more room to let the yuan firm without stepping in. Watching the fixing alongside the broad dollar trend gives a clearer sense of how much effort is going into managing the currency.
Why it matters beyond China
China is the world’s largest exporter and a huge buyer of raw materials, so its currency affects global trade. A sharply weaker yuan can make Chinese goods cheaper abroad, which can add to trade tensions. It can also pressure other Asian currencies that compete with China in export markets.
Commodity traders watch too. A stable or stronger yuan can support Chinese buying power for metals, energy and food, while a weaker one can do the opposite. Our guide to how industrial metals react to China data explains the link. The Australian and New Zealand dollars, which are closely tied to Chinese demand, often react to shifts in the yuan.
Keeping it in context
The fixing is a managed number, so it reflects policy as much as market forces. Reading it well means looking at the trend over several days rather than over-reacting to one morning’s figure, and remembering that the authorities can change their approach. Interest rate gaps between China and the US are one of the forces the fixing has to lean against, and our guide to how interest rate expectations move FX explains why those gaps matter.
If you would like to understand how global currency signals fit into your own trading approach, our free trader assessment is a sensible starting point and shows what to focus on next.
