Bitcoin's weekend rebound faces an $80,400 test after US spot Bitcoin ETFs recorded nearly $730 million in outflows between Oct. 7 and Oct. 8. PerpFinder's Oct. 10, 09:36 UTC snapshot put Bitcoin near $82,900 and Binance BTC futures open interest at $7.70 billion, with negative funding. Farside's daily table showed a modest $21.1 million net ETF inflow on Friday, Oct. 9. Sunday's Deribit BTC expiry has $272.4 million in open interest and a put/call ratio of 1.77, according to PerpFinder. The rebound's durability depends on whether traders rebuild leverage, continue closing positions or hedge against another decline.