Treasury Watch · Published

Strategy Bitcoin Holdings Reach 846,000 BTC on New Buy

Strategy bitcoin holdings climb to 846,000 BTC on a $75.7 million buy

Strategy bitcoin holdings now total 846,000 BTC, after the company — the bitcoin treasury company formerly known as MicroStrategy — disclosed a purchase of 950 BTC for $75.7 million in its September 21 Form 8-K, covering the week of September 14 to 20. It was Strategy's first bitcoin purchase after a two-week pause, and it was funded entirely from the company's own cash on hand rather than new share sales. The buy took Strategy's total cost basis to $63.80 billion, or $75,416 per coin, and it was also a fraction of what the company spent the same week on a different target: $174.0 million buying back its own preferred stock, the eighth straight week that program has outspent bitcoin purchases. Strategy's full filing history, cost basis and financing capacity are always live on the MSTR treasury dashboard.

That is the headline, and it sets up the two questions this piece actually answers: what did $75.7 million of bitcoin buying look like against everything else Strategy did with its cash this week, and how much of the wider cushion on Strategy's position is buying versus bitcoin's own rally.

Why Strategy spent more buying back STRC than buying bitcoin — again

The filing is explicit about where the money came from. Strategy holds two internal cash pools: a USD Reserve set aside for preferred dividends and debt interest, and USD Cash, a more discretionary pool management can direct toward bitcoin purchases, buybacks, or other capital uses. During the week, Strategy used $75.7 million of USD Cash to buy the 950 BTC and a further $174.0 million of USD Cash to repurchase 1,771,238 shares of STRC, its Variable Rate Series A Perpetual Stretch Preferred Stock, under the company's Digital Credit Securities Repurchase Program. Separately, $57.4 million of the USD Reserve went to preferred dividends and interest on outstanding debt. No shares were sold under any at-the-market program during the period — so this week's bitcoin purchase, unlike some earlier ones this year, did not come from newly issued stock.

Last Thursday's treasury piece documented seven straight weeks in which the STRC buyback ran larger than bitcoin buying, totaling $925.8 million against a single $369.7 million purchase and two sales. Add this week's filing and the streak reaches eight: $1,099.8 million has now gone to STRC buybacks since early August, against $445.4 million of gross bitcoin purchases and $213.3 million of sale proceeds over the same stretch — a net cash commitment to bitcoin of roughly $232.1 million, about a fifth of what went to the preferred buyback alone. The recent weeks in full:

The Digital Credit Securities Repurchase Program has $875.1 million left of its $2.0 billion authorization after this week's spending. A separate $1.0 billion authorization to buy back MSTR common stock remains completely untouched in every filing reviewed for this piece — the repurchase story so far is a preferred-stock story only.

Strategy's bitcoin cost basis barely moved — the cushion widened because bitcoin did

Strategy's average cost per bitcoin now stands at $75,416, up four dollars from $75,412 the week before — essentially unchanged, since this week's purchase price of $79,670 sat only modestly above the running average. What moved was the market price of the coins already on the balance sheet. Bitcoin closed at $84,366 on Wednesday, September 23, up from $76,180 the previous Wednesday, a roughly 11% move over that single week this week's macro brief covers in full. At that close, the 846,000 BTC position is worth approximately $71.4 billion against its $63.80 billion cost basis — an unrealized gain of about $7.6 billion, or roughly 11.9% above cost, up sharply from the near-breakeven cushion this column reported in mid-September.

Worth being precise about where that gain came from. Strategy's holdings grew from 843,775 BTC on July 27 to 846,000 BTC as of this week's filing — an increase of about 0.3% over eight weeks. Bitcoin's price over the same stretch moved far more. The cushion rebuilt itself almost entirely on price, not on accumulation, and a position this size sits exposed to that price in both directions: a bitcoin move back toward its September lows would erase most of this month's gain without a single coin changing hands.

MSTR bitcoin treasury financing: $44.3 billion still undrawn

Strategy's at-the-market equity and preferred-stock programs — the capital it could raise by issuing new securities — still show $44.34 billion of undrawn capacity across five programs, unchanged since the August 31 filing, consistent with this week's disclosure that no shares were sold under any ATM program. Set against the position's roughly $71.4 billion current value, that is about 62% of the entire bitcoin holding in additional financing capacity Strategy has not drawn on. That pool is distinct from the two repurchase authorizations discussed above: $875.1 million left for preferred-stock buybacks and $1.0 billion left, untouched, for MSTR common stock — three separate levers on different parts of the balance sheet.

The two operating cash pools also moved this week: USD Reserve fell to $5.04 billion from $5.10 billion after funding dividends and interest, and USD Cash fell to $1.05 billion from $1.30 billion after funding both the bitcoin purchase and the buyback. On the other side of the ledger, Strategy's most recent 10-Q, for the quarter ended June 30, 2026, put senior claims ahead of common equity — long-term debt of $6.67 billion plus preferred stock at its $15.46 billion liquidation preference — at $22.13 billion combined. That figure is a quarterly balance-sheet snapshot rather than a current weekly one, so it predates several of the filings discussed here, but it is the plainest measure of how much sits in line ahead of shareholders if the bitcoin position were ever liquidated under stress.

How does Strategy's bitcoin buying compare to the ETF channel this week?

For once, the corporate treasury channel actually outsized the ETF channel in raw dollars over the identical week. US spot bitcoin ETFs took in a net $6.1 million across all twelve funds for the trading sessions of September 14 through 18 — the flattest week bryptoflows has recorded in months, as a midweek slide ahead of the Federal Reserve's rate decision fully reversed by Friday. Strategy's own $75.7 million purchase in the same period was more than twelve times that ETF total.

That comparison should not be read as a shift in scale. Over the trailing 20 sessions through September 23, US spot ETFs absorbed $2,548.8 million net — roughly 5.7 times the $445.4 million of gross bitcoin purchases Strategy has made across its comparable trailing four weekly filings. This week's dollar comparison is a low-flow-week artifact on the ETF side, not evidence that the treasury channel has grown to rival it. Live readings for both channels sit side by side on the overview dashboard and the signal dashboard; Monday's supply piece covers the ETF-absorption side of that comparison in more depth.

The MSCI decision still hangs over Strategy's index eligibility

One open question this filing does not touch, but that bears directly on demand for MSTR shares: MSCI is consulting on whether to exclude bitcoin treasury companies, Strategy included, from its widely tracked global equity indexes, reopening a review paused after an earlier attempt. The proposed screen — a two-step test based on the share of operating versus non-operating assets and five financial ratios — would, if applied to current data, remove Strategy, Metaplanet and uranium holder Yellow Cake from the MSCI ACWI IMI Index (Yahoo Finance). Roughly $2.8 billion of index-tracking capital is estimated to be riding on the outcome (CryptoSlate). Strategy's executive chairman and CEO published a formal response this month calling the proposed rule a pretext for excluding bitcoin companies and urging MSCI to withdraw it (Benzinga). MSCI's comment period closes September 30, with a decision due October 16 — both dates unaffected by anything in this week's 8-K, and worth watching regardless of which way Strategy's own bitcoin buying goes between now and then.

Risks and open questions the filings don't resolve

None of the figures above should be read as a call on MSTR stock; this is a read of what Strategy disclosed, not a recommendation. A few limits are worth stating plainly. The filing is accurate as of September 20 and says nothing about September 24 — the swing in this piece's own cushion estimate over the past two weeks shows how quickly that number moves in either direction. Strategy's bitcoin position is unhedged and entirely mark-to-market; nothing about this week's purchase changes that exposure, and the $22.13 billion of senior claims sit ahead of common shareholders regardless of where bitcoin trades. Share-count growth is bryptoflows' own estimate rather than a disclosed figure between quarterly baselines — currently around 426.1 million shares, up from a reported 384.2 million as of July 24, with a roughly 1.4% band of uncertainty — because Strategy's weekly 8-Ks report bitcoin activity but not share count directly. And the STRC buyback pace, now running at $1.1 billion since early August against $232 million of net bitcoin spending, is a management choice that could reverse in any future week; nothing in the filings commits Strategy to keep favoring one over the other. Two other public companies run comparable treasury strategies in other assets — BitMine (BMNR) in ether and Hyperliquid Strategies (PURR/HYPE) — each with its own coverage on this site; this piece is Strategy-only.

Track Strategy's full filing history, financing programs and share structure on the MSTR treasury dashboard. Bitcoin-holdings, cost-basis, financing and repurchase-program figures are read from bryptoflows' own API and cross-checked directly against Strategy's Form 8-K filed September 21, 2026 (accession 0001193125-26-396093, covering September 14–20, 2026); the STRC authorization and prior-week figures are drawn from the filings cited in last Thursday's treasury piece. Senior-claims figures are from Strategy's Form 10-Q for the quarter ended June 30, 2026. Bitcoin price and ETF flow figures are from bryptoflows' own candle and flow data, current through the September 23, 2026 close. Institutional-signal figures are from bryptoflows' own analytics API, current through the same date. Retrieved and published September 24, 2026.