Strategy Inc. (NASDAQ: MSTR), the company formerly known as MicroStrategy, has posted a 48% gain over the past 30 days, making it the single best performer in the entire Nasdaq-100. For context, the second-place finisher was Meta, which managed roughly 21.9% over the same period.

The stock closed at $153.92 on September 18 after surging 16.39% in a single session.

What's driving the rally

Two forces are converging. The first is Bitcoin itself, which has been climbing toward $80,000 level. The second is a string of regulatory developments that have given crypto-linked equities a boost.

The House Financial Services Committee recently voted to advance a Strategic Bitcoin Reserve bill. A committee vote is an early step in the legislative process, and the measure would still need to clear further stages before becoming law. Separately, the SEC granted an exemption related to tokenized stock trading.

Strategy Inc. sits squarely at that intersection. The company holds approximately 845,050 Bitcoin, acquired at an average price of roughly $75,412 per coin. The firm pivoted away from its legacy business-intelligence software operations back in 2020 and has since transformed into what amounts to a publicly traded Bitcoin treasury vehicle.

The leverage play, explained

Owning MSTR stock is not the same as owning Bitcoin. The company's structure creates what finance professionals call a "high-beta equity proxy" for Bitcoin's price movements. When Bitcoin goes up, MSTR tends to go up more. When Bitcoin goes down, MSTR tends to go down more.

This happens because the company uses debt and equity raises to acquire more Bitcoin, amplifying its exposure beyond what a 1:1 holding would produce. Shareholders gain equity exposure to Bitcoin's price swings without directly holding the cryptocurrency themselves.

At roughly 845,050 BTC and with Bitcoin approaching $80,000, Strategy's Bitcoin stash is worth somewhere in the neighborhood of $67.6 billion at current prices. The average acquisition cost of around $75,412 per coin means the position is currently in the green, with the cost basis sitting within a few thousand dollars of the $80,000 level Bitcoin is approaching — a relatively narrow spread between what the company paid and where prices now stand.

Where MSTR fits in the broader market

Many institutional investors, whether pension funds, endowments, or mutual funds, face restrictions on holding Bitcoin directly. MSTR offers a workaround. Investors can gain crypto exposure through a regulated, publicly listed equity that appears in standard brokerage accounts and index funds, without wallets, custody arrangements, or added compliance burdens.

Because the stock is a Nasdaq-100 component, funds that track the index hold it automatically, so its recent swings are reflected in the returns of those broad-market products as well.

There is also concentration risk to consider. Strategy Inc. is, for all practical purposes, a one-asset company. Its software business still exists, but it is a rounding error compared with the Bitcoin holdings. That structure means the stock's path from here is closely tied to two observable factors: Bitcoin's price relative to the company's $75,412 average cost basis, and whether the regulatory measures now in motion advance through the legislative and rulemaking processes.