U.S. Bitcoin (BTC $88,748.27) ETFs saw their largest weekly outflows since November, a signal that often coincides with short-term price bottoms.

Data from SoSoValue shows $1.22 billion exited ETFs over the four days ending Thursday, including $479.7 million on Tuesday and $708.7 million on Wednesday. Bitcoin dropped roughly 5% during the same period and has remained largely flat since the start of the year.

Historically, heavy ETF outflows have aligned with local lows. In November, a similar four-day withdrawal preceded a rebound from around $80,000 to over $90,000. Comparable patterns appeared in March 2025, before tariff-related market turbulence, when Bitcoin fell to $76,000, and in August 2024, when it bottomed near $49,000 during the unwind of the yen carry trade.

Glassnode data indicates the average ETF investor cost basis is $84,099, a level that has historically served as support during pullbacks.

The combination of elevated outflows and historical support suggests Bitcoin may be approaching a potential short-term bottom.