Onshore yuan closes at 6.6805 per dollar, down 81 points

The move itself is modest, but the timing is the detail worth noting: the onshore session settled in the early hours of the Asian day, so the fixing and opening levels will carry more weight than usual in setting the tone. Turnover of roughly $36 billion suggests participation was unremarkable, which argues against reading the 81-point decline as a shift in conviction. Whether the next session extends the move or absorbs it is the open question.