Bitcoin spot ETF demand and corporate treasury accumulation triggered a notable supply squeeze during the opening week of 2026. US institutional players—led by major corporate treasuries like MicroStrategy with a fresh 1,283 BTC purchase—collectively pulled 6,433 BTC from the market. Compare that to miners' 3,137 BTC output, and you get the picture: institutions captured 105% of new supply. That's significant. Corporate Bitcoin holdings now reach 1.09M BTC, representing 5.2% of total circulation. What's happening here? Institutions aren't just buying; they're mopping up supply faster than new coins enter the market. This accumulation pattern, combined with ETF inflows, creates structural upward pressure. Fewer coins available, more capital chasing them—classic supply shock dynamics that typically precede volatility shifts.