at binance -
1)
from September 1st, to September 17th
was sold about 60 000 more btc than bought btc

60 000 btc now cost about 600 mln usd

at the same time - from September 1st, to September 17th
was issued about 1, 700 mln of usdt


i dont check difference of (sold - bought) btc  at other exchanges,


2) from September 5th, to September 17th
was sold about 30 000 more btc than bought btc
and at this period price of btc go up

so at this period people sold more than buy, but price go up