Strategy just added another 24,869 BTC in a single week. The May 18 8-K makes it official.

The purchase ran from May 11 through May 17, 2026, at an average price of $80,985 per coin, costing $2.01 billion in aggregate. Every dollar came from ATM share sales. Aggregate holdings now stand at 843,738 BTC, carried at an average cost basis of $75,700. The most recent SEC-disclosed fair market value, approximately $64.04 billion as of April 26, 2026, per the May 5 10-Q, predates this purchase, so the current position is larger than that figure reflects.

The ATM Is the Engine

The mechanics here are straightforward. Strategy sells $MSTR shares into the market through its at-the-money equity program, converts the proceeds to Bitcoin, and files an 8-K to report the update. This week's filing follows that same sequence. Net proceeds are reported after sales commissions, per the filing's own footnote.

What makes this disclosure more than routine is the scale. A $2.01 billion single-week purchase is a meaningful deployment even against Strategy's existing position. The company is not dripping into Bitcoin. It is buying in size, consistently, every time the ATM generates capacity.

The $21 Billion Reserve Sitting Behind the Current Offering

The filing also restates a detail that matters for anyone tracking the capital structure. On March 23, 2026, Strategy announced a new $21.0 billion offering of $MSTR stock, labeled the $MSTR Increase. That capacity does not activate until the existing ATM offering is substantially depleted. The filing is explicit: the $MSTR Stock amount available for issuance reflects the aggregate remaining capacity of both programs combined, but sales under the $MSTR Increase begin only after the current offering is nearly exhausted.

That sequencing creates a visible runway. Once the current offering is drawn down, Strategy has another $21 billion queued to fund additional purchases. The company has not disclosed a timeline for when the existing offering will be depleted, but the pace of recent purchases suggests the transition could come sooner than the headline $21 billion figure implies.

Disclosure Cadence Drives the Filing Profile

$MSTR's Filing Risk Score sits at 100, and Event Momentum matches it. Both reflect the density of capital markets filings the company generates, not a judgment about financial condition. Strategy files BTC update 8-Ks on a near-weekly basis, each one a material event disclosure under Item 8.01. That cadence is what pushes the elevated disclosure signal to its ceiling.

The BTC Exposure Score of 85 captures the other side of the picture. Bitcoin is the dominant asset on the balance sheet, the primary driver of reported earnings under fair-value accounting, and the stated purpose of the capital-raising program. The equity trades as a leveraged Bitcoin proxy, and the filing tape confirms that relationship with each new disclosure.

Where the Position Stands Against the Cost Basis

At 843,738 BTC and an average cost of $75,700, Strategy's aggregate purchase price across the entire program is approximately $63.87 billion, per the filing's own disclosure. The April 26 fair market value of $64.04 billion sat just above that aggregate cost basis at the time of measurement. The week's purchase at $80,985 per coin came in above the portfolio average, which nudges the blended cost basis higher.

That spread between cost basis and fair value is thin relative to the position size. A sustained Bitcoin price decline toward or below the $75,700 average would compress the unrealized gain that currently supports the fair-value accounting uplift flowing through reported earnings. That is the core financial risk the position carries, and it is one the company's own risk factors address directly.

Crypto Sentiment Adds Context

The broader crypto tape at the time of the purchase showed Bitcoin dominance at 58.2%, a Bitcoin-led market. The Fear and Greed index sat at 29, in fear territory. Strategy was buying aggressively into a fearful market, at prices above its portfolio average. Whether that proves prescient depends entirely on where Bitcoin goes from here, and the filing makes no claim about that.

What the filing does confirm is that the program is running at full speed, the reserve offering is staged and ready, and the position is now the largest disclosed Bitcoin treasury on record.

Research only. Not investment advice.