According to @ai_9684xtpa, a trader bought put options on 6,000 ETH with a $4,250 strike expiring Sep 6 when ETH briefly dropped below $4,300 earlier today, paying about $174,000 in premium (source: @ai_9684xtpa). With less than 30 minutes to expiry, ETH remained around $4,300, leaving the position out-of-the-money (source: @ai_9684xtpa). The source notes the premium may expire worthless if ETH settles above $4,250 at expiration (source: @ai_9684xtpa).