The yuan ended two notches weaker versus the US dollar at 8.2767 on Friday, but remained near the stronger end of its managed trading range.
The one-year non-deliverable dollar forward discount versus the yuan was at 2,000 points implying a rate of 8.078 yuan per dollar in 12 months' time.
NDFs are a transaction where a forward price is agreed between a customer and a bank, but settlement on the value date is undertaken entirely in US dollars.
One-year implied yuan volatility was traded at 5.90/6.70 percent on Friday.
The yuan moves in a band of 8.2760 to 8.2800 enforced by the central bank.
Turnover for the day fell to $690 million from $840 million on Thursday. The yuan ended weaker at 7.6803 against 100 Japanese yen from Thursday's 7.6579, and softened against the euro to 10.0580 from 9.9819.