Treasury Firms Stack Ethereum, Solana, and Bitcoin Through a Jittery September Market

Three listed crypto treasury companies added to their token piles last week, even as Bitcoin (BTC), Ethereum (ETH), and Solana (SOL) drifted through a soft September.

Buying continued as digital assets faced fresh uncertainty ahead of a Federal Reserve rate decision. Strategy (formerly MicroStrategy) was the exception, though. The firm bought back its own preferred shares and left its Bitcoin stack untouched.

BitMine and DFDV Expand Their Crypto Treasury

BitMine Immersion Technologies picked up 27,180 ETH last week, lifting its position to 5.956 million tokens. That lands at 4.9% of the circulating supply, just under the 5% supply target that chairman Tom Lee has been pursuing.

Roughly 5.07 million of those tokens sit staked. BitMine values its combined crypto and cash at $15.8 billion.

“In August, ETH moved sideways without a downside break, and the 12-day metric expired, which implies a renewal of the upside move. We believe this further supports the continuation of the prior uptrend. We expect late August’s sharp one-day rally was a likely preview of the pending advance,” Tom DeMark, founder of DeMark Analytics and a capital markets advisor to the firm, said.

DeFi Development Corp, a Nasdaq-listed Solana treasury firm, has grown its holdings by 2% to 2.39 million SOL since August 27. It also opened a $300 million at-the-market program for CHAD, its Solana-backed preferred stock. 

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Strive Buys, Strategy Sits Out

Strive, the fifth-largest public Bitcoin treasury firm, bought 469 BTC between September 8 and 11 at an average of $77,954. Its treasury now holds 25,000 coins.

Strategy, the largest public Bitcoin holder, bought none. It repurchased $139 million of its STRC stock. Its stack holds at 845,050 BTC, against an average cost of $75,412.

Strategy has repurchased $139M of $STRC. As of 9/13/26, we hold 845,050 $BTC and $6.4B of USD Assets. $MSTR https://t.co/NDYaVxz2sm

— Michael Saylor (@saylor) September 14, 2026

The purchases land ahead of a decisive week for crypto. The Federal Open Market Committee delivers its interest rate decision on September 16.

Markets have swung toward expecting a hike. CME FedWatch put the odds of a quarter-point increase at 85.6% on September 11, up from 48.4% a month earlier.

Higher rates raise the cost of holding assets that generate no yield. A hike could therefore pressure crypto prices in the sessions that follow, as it has during earlier tightening moves.

That sets up the real test for these treasuries. Their buying has continued through a soft stretch for prices, and the coming weeks will show whether it survives a potential deeper slump.

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