According to Greekslive, BTC options contracts with a nominal value exceeding $640 million and ETH options contracts with a nominal value of $220 million will expire and be settled on September 8th. Specifically:

25,000 BTC options contracts are about to expire, with a Put Call Ratio of 0.51 and a maximum pain point of $26,500, with a nominal value of $640 million.

138,000 ETH options contracts are also about to expire, with a Put Call Ratio of 0.86 and a maximum pain point of $1,650, with a nominal value of $220 million.

Greekslive said that for most of this week, the intraday volatility of BTC and ETH was relatively small, and there were relatively few market hotspots.