Spot Bitcoin ETFs listed in the US recorded their steepest single-day outflow in nearly three weeks on Friday, with $349 million pulled from all 11 products combined, according to data from Farside. Related Reading: Stablecoin Market Breaks Records — USDC Controls 70% Of $1.8 Trillion Volume The withdrawals came as Bitcoin slid back toward $68,000 after briefly touching $74,000 earlier in the week — a run-up that, based on on-chain data, appears to have been the trigger for a significant wave of selling by large holders. Big Holders Bought Low, Then Sold Fast Crypto analytics platform Santiment tracked the behavior of wallets holding between 10 and 10,000 Bitcoin — a group commonly referred to as whales — and found they had been building positions aggressively between Feb. 23 and March 3, when prices were stuck in the $62,900 to $69,600 range. Once Bitcoin crossed $74,000 on Wednesday, those same wallets began offloading. By Friday, roughly 66% of what they had accumulated over that 10