People's Bank of China set the onshore yuan (CNY) reference rate for the trading session ahead.
USD/CNY is the onshore yuan. Its permitted to trade plus or minus 2% from this daily reference rate.
CNH is the offshore yuan. USD /CNH has no restrictions on its trading range.
A significantly stronger or weaker rate than expected is typically considered a signal from the PBOC.
The previous close was 6.9000
PBoC injects 50bn yuan of 7-day reverse repos at an unchanged rate of 2.0%
584bn yuan of RRs mature today
thus net drain of 534bn yuan on the day