Key Highlights

  • Publicly traded companies collectively added approximately 5,900 BTC to their treasuries over the three months through mid-September 2026, according to data reported on September 18, 2026.
  • That pace represents a steep pullback from mid-2025, when corporate treasuries added well over 100,000 BTC over a comparable stretch, including roughly 89,000 BTC in July 2025 alone.
  • As of mid-September 2026, corporate treasury holders collectively controlled about 1.22 million BTC across 181 publicly listed firms, carrying an average cost basis near USD 80,500 per coin.
  • With Bitcoin trading near USD 76,400 in mid-September before its later rally, that cost basis left the aggregate corporate treasury cohort roughly 6 percent underwater on paper, a gap that narrowed sharply once Bitcoin climbed back above USD 85,000 by September 21, 2026.

A Sharp Deceleration From 2025's Pace

Corporate treasury demand, one of the defining forces behind Bitcoin's institutionalization over the past two years, has cooled markedly heading into the final quarter of 2026. Reporting published September 18, 2026 put the three-month total of new corporate purchases at roughly 5,900 BTC, a fraction of the buying seen at the peak of the trend. During mid-2025, corporate treasuries added more than 100,000 BTC over a comparable three-month window, with July 2025 alone contributing an estimated 89,000 coins, underscoring just how much the pace has decelerated. The slowdown does not necessarily indicate outright disinterest in Bitcoin as a treasury asset, but it does suggest that the wave of newly formed and expanding treasury programs that characterized 2025 has largely run its course for now, with existing holders adding more cautiously.

Who Is Still Buying, and Who Is Not

Strategy Incorporated (NASDAQ: MSTR), the largest corporate Bitcoin holder, accounted for the bulk of the 5,900 BTC added during the period, including a late-August 2026 purchase of 4,603 BTC, though the company itself paused new buying for roughly three weeks before resuming purchases on September 21, 2026. Tokyo-listed Metaplanet remains among the other large corporate holders continuing to build its position, even as the overall pace across the sector slows. Not every company has moved in the same direction during this window: Bitcoin miner MARA Holdings, Inc. (NASDAQ: MARA) disclosed a purchase of 1,292 BTC around September 16, 2026, a notable counterpoint that shows individual firms are still opportunistically adding to their reserves even as the aggregate trend across public companies has flattened.

Paper Losses and Weak Demand Signals

Beyond the headline purchase figures, several secondary indicators point to softer institutional appetite through much of September 2026. With an average cost basis near USD 80,500 across the 181 tracked corporate holders and Bitcoin trading around USD 76,400 in mid-September, the cohort was sitting on unrealized losses of roughly 6 percent in aggregate, a gap that closed and likely reversed once Bitcoin's price recovered above USD 85,000 later in the month. Spot Bitcoin Exchange-traded funds remained roughly USD 1 billion short of being profitable for holders on a year-to-date basis at that point, while a widely watched gauge of relative demand on U.S. exchanges compared with offshore markets had stayed negative since May, pointing to comparatively softer domestic buying pressure. Total Stablecoin supply, often viewed as dry powder for crypto markets, also held roughly steady in the USD 300 billion to USD 310 billion range despite Bitcoin's sharp price gains in August, another sign that fresh Capital inflows into the broader crypto ecosystem had not kept pace with the price recovery.

Where Things Stand

The slowdown to roughly 5,900 BTC in new corporate treasury purchases over the three months through mid-September 2026 marks a clear break from the breakneck accumulation pace of 2025, even as a handful of companies, including MARA Holdings and a resurgent Strategy, continue to add selectively. With the aggregate corporate cohort's average cost basis sitting close to spot prices for much of September before Bitcoin's rally past USD 85,000, the sector's near-term appetite for further buying will likely hinge on whether that price strength holds and whether broader Liquidity and rate conditions continue to improve into the fourth quarter of 2026.