Due Diligence Capital Notes

In one week — March 9 through March 15, 2026 — Strategy Inc. spent $1.57 billion buying Bitcoin. That is not a quarterly figure. That is not a half-year total. That is seven days of concentrated, systematic accumulation, funded entirely by selling shares in its own securities on the open market. No new bank loans. No convertible bond roadshow. Just two ATM programs running in parallel, printing cash and converting it into Bitcoin almost in real time.

I have been watching this company for a long time, and the mechanism still stops me cold when I look at the raw numbers. So let me walk through exactly how they did it, what it means for the overall treasury position, and where the genuine risks lie for anyone trying to think clearly about this as a long-term holding.

The Multi-Instrument ATM Machine

Before getting into the specific week, it helps to understand what Strategy has actually built at the capital markets level. Most people who follow MSTR know about the ATM offering — short for At-The-Market offering, which is a program that lets a company sell new shares gradually into the public market at whatever the prevailing market price is, rather than doing a single large equity raise at a fixed price. The advantage is flexibility and reduced market impact.

What Strategy has done, though, is something architecturally more ambitious. The company now operates five separately listed Nasdaq securities, each with its own ATM program and its own authorized issuance capacity. They are:

MSTR — Class A common equity, the one most people already know
STRK — 8% Series A Perpetual Strike Preferred Stock, convertible into common shares above a certain price threshold
STRF — 10% Series A Perpetual Strife Preferred Stock, fixed-rate, non-convertible
STRC — Variable Rate Perpetual Stretch Preferred Stock, the newest instrument
STRD — 10% Series A Perpetual Stride Preferred Stock, fixed-rate, non-convertible

Each of these securities appeals to a different slice of the investor universe. MSTR is for equity investors who want levered Bitcoin exposure. STRK is for investors who want a yield floor with upside optionality. STRF and STRD attract fixed-income buyers who want a double-digit coupon on something liquid and exchange-listed. STRC — the one that did the heavy lifting this particular week — targets a different type of buyer again, one who accepts a floating rate in exchange for daily liquidity that private credit markets cannot offer.

The genius of this structure is that Strategy can rotate between instruments depending on where investor appetite is strongest at any given moment. When STRC demand is running hot, sell STRC. When common equity is flying, lean on the MSTR ATM. The Bitcoin accumulation machine never has to stop because the fuel supply comes from multiple independent tanks.

How $1.57 Billion Moved in Seven Days

Here is the mechanics of the specific week in question, broken down precisely.

STRC carried the majority of the load. Strategy sold 11,818,467 shares of STRC through its ATM during the week ending March 15, generating net proceeds of $1,180.4 million. That is roughly 75% of the week's total raise from a single preferred series. Investors buying STRC receive a variable dividend rate — the rate floats rather than being fixed — which makes it more akin to a floating-rate credit instrument than a traditional preferred stock. For buyers who are nervous about locking in duration at a fixed rate, that flexibility has obvious appeal.
The MSTR common ATM provided the remaining quarter. Strategy sold 2,833,668 shares of Class A common stock, generating net proceeds of $396.0 million. Combined with the STRC raise, total net proceeds for the week landed at approximately $1,576.4 million.
Every dollar went straight into Bitcoin. As Strategy stated directly in its Form 8-K filed March 16, 2026 with the SEC: "The bitcoin purchases were made using proceeds from the sale of shares under the ATM." No ambiguity. No working capital retained. The capital raise and the BTC purchase were functionally the same transaction.
22,337 BTC acquired at $70,194 average. The average purchase price that week was below Strategy's all-time average cost basis of $75,696 per coin, which means this purchase was technically basis-dilutive in a good direction — it brought the blended cost per coin down, not up. When you are accumulating at a price below your average, you are improving the quality of the overall position with every new coin added.
The treasury now stands at 761,068 BTC. That aggregate position carries a total cost basis of $57.61 billion. To put that in perspective, there are roughly 19.8 million Bitcoin in existence today. Strategy holds approximately 3.8% of total circulating supply. One company. One balance sheet.

The Remaining Runway Is the Underappreciated Number

The weekly purchase gets the headlines, but the number I find more interesting is what remains in the ATM pipeline. As of the March 16 filing, Strategy's remaining authorized ATM capacity across all five securities totals more than $34.2 billion:

STRK: $20,331.6 million remaining — by far the largest single bucket
MSTR common: $6,316.8 million remaining
STRD: $4,014.8 million remaining
STRC: $1,975.8 million remaining
STRF: $1,619.3 million remaining

Think about what that means structurally. Even if Strategy raised nothing new — even if management never filed another S-3 shelf registration — the company has over $34 billion in pre-authorized capacity to continue buying Bitcoin. At the pace of the March 9–15 week ($1.57 billion), that runway extends well over a year before needing a single new authorization from shareholders.

This is not an accident. This is a deliberately engineered buffer. The architecture ensures that the accumulation engine can keep running regardless of short-term market conditions or management bandwidth. Strategy also maintains a public dashboard on its IR site — referenced explicitly in its Reg FD disclosure language from the same 8-K — where Bitcoin holdings, purchase updates, and key performance metrics are updated on a rolling basis. The transparency is a feature, not an afterthought. It keeps institutional buyers informed between formal SEC filings.

What Could Break This Thesis

No honest analysis of this structure is complete without naming the scenarios where it falls apart. There are four I think about seriously.

Bitcoin price deterioration at scale. Strategy's all-time average purchase price is $75,696 per BTC. With 761,068 coins on the balance sheet, every $10,000 move in Bitcoin's price represents roughly $7.6 billion in unrealized gain or loss. A sustained bear market — not a 20% correction, but a multi-year drawdown to, say, $30,000–$40,000 — would put the balance sheet deeply underwater on a mark-to-market basis. Under the new FASB fair-value accounting rules, those losses flow through the income statement in real time. The company would not be forced into insolvency by paper losses alone, but the optics and the NAV compression would be severe.

Dilution outpacing Bitcoin per share growth. The entire bull case for holding MSTR over spot Bitcoin rests on the idea that each new share sale is accretive — meaning it increases the Bitcoin value per share, because the shares sell at a premium to NAV. If that premium collapses — if MSTR trades at or below its underlying BTC value per share — then additional ATM sales would be dilutive rather than accretive. The machine only works while the premium holds, and the premium only holds while sentiment holds.

Mandatory preferred dividends as a structural drain. STRF pays 10% annually. STRD pays 10%. STRK pays 8%. These are cumulative perpetual preferred dividends, meaning they accrue whether or not the company has operating cash flow, and missing them creates compounding arrears. As the preferred share base grows through ongoing ATM issuance, the annual dividend obligation grows with it. Strategy's software business generates modest revenue — this is not a company that earns enough from operations to service large dividend obligations without constantly refinancing or liquidating assets. If BTC prices fall hard while preferred dividend obligations are large, the cash crunch scenario becomes real.

Regulatory uncertainty around the structure itself. There is no historical precedent for a public company running five simultaneous ATM programs across common and preferred equity, all funneling proceeds into a single non-productive asset. That novelty may eventually attract SEC attention — not necessarily enforcement, but potential rule-making around disclosure requirements, leverage ratios for non-bank entities holding concentrated digital assets, or restrictions on the use of preferred equity proceeds. The regulatory tail risk is low-probability but high-consequence.

Conclusion

What Strategy did in the week of March 9–15, 2026 is not remarkable because of the dollar figure — though $1.57 billion in seven days is genuinely staggering. It is remarkable because of the structural elegance of how it was accomplished. Two instruments, five minutes of reading the filing, and suddenly you understand how a company can consistently acquire billions of dollars worth of a scarce asset without touching a bank or issuing traditional debt.

The 761,068 BTC treasury is now large enough that Strategy's fate is inseparable from Bitcoin's. That is, depending on your view of Bitcoin's long-term trajectory, either the most compelling long-duration bet in public markets or a concentrated risk that has no historical analog. With $34 billion in remaining ATM capacity and a preferred share architecture that keeps generating demand from yield-seeking fixed-income investors, the accumulation is unlikely to slow unless market conditions force a fundamental reassessment. I am watching the Bitcoin-per-share metric and the NAV premium more closely than the headline BTC count — because those two numbers will tell me, well before any press release does, whether the machine is still working.