In a surprise about-face, global index provider MSCI announced Monday it won't kick cryptocurrency treasury companies out of its Global Investable Market Indexes after all. The decision sent shares of Strategy Inc. (MSTR) rocketing higher in after-hours trading, offering relief to what's become the poster child for corporate Bitcoin holdings.

What Changed MSCI's Mind?

MSCI had floated the idea of excluding companies whose digital asset holdings represent 50% or more of total assets, treating them more like investment funds than operating businesses. But after consulting with institutional investors, the index giant decided the issue needs more thought. The current treatment of these crypto treasury companies will remain unchanged "for the time being," MSCI said.

The consultation process revealed investors worried these companies look too much like investment funds rather than real operating businesses. Fair point, maybe? But the feedback also highlighted something trickier: distinguishing between companies that hold digital assets as investments versus those using crypto for core business operations isn't as straightforward as it seems. MSCI acknowledged this difference "requires further research and consultation" with market participants.

Saylor Declares Victory

Strategy, which holds a staggering 673,783 Bitcoin worth roughly $62.5 billion, didn't hide its satisfaction. The company and founder Michael Saylor quickly took to social media to celebrate.

"A strong outcome for neutral indexing and economic reality. Thank you to our investors and the BTC community," Strategy posted on X.

The relief is understandable. Strategy had been fighting hard against the proposed rule, calling it "discriminatory, arbitrary, and unworkable." The company argued crypto treasury firms would get whipsawed in and out of major indexes as Bitcoin prices fluctuate, creating chaos for both index providers and the passive funds tracking them.

The Stakes Were Real

This wasn't just theoretical hand-wringing. JPMorgan analysts had estimated Strategy could face around $2.8 billion in passive outflows if it got booted from major benchmarks. Saylor dismissed that forecast as "alarmist," but the threat was serious enough that Strategy framed the rule as conflicting with the Trump administration's "pro-innovation policies."

Now the company can breathe easier, at least temporarily. The stock jumped 6.60% to $168.40 in after-hours trading, a welcome bounce after closing down 4.10% at $157.97 during the regular session. Still, it's been a rough ride overall with MSTR down 58% over the past year, reflecting both Bitcoin's volatility and investor skepticism about the crypto treasury model.

The Bigger Question Remains

MSCI's decision to punt on this issue doesn't resolve the fundamental tension. Are companies like Strategy really operating businesses, or are they essentially leveraged Bitcoin ETFs with extra steps? That debate will continue, and MSCI made clear it's not done studying the question. For now, though, the crypto treasury companies stay in the indexes, and Michael Saylor gets to claim another win for his Bitcoin maximalist strategy.