Bitmine Immersion Technologies added more than 27,000 Ether to its holdings last week, bringing its total ETH holdings to 5.7 million tokens. The increase raised Bitmine's share of the total ETH supply to about 4.7% of the 120.7 million tokens in circulation. The company announced the purchase on Monday, stating that the $43 million transaction brought its average acquisition price to $1,569 per ETH. Bitmine remains the largest publicly traded corporate holder of Ether. Its inclusion in the Russell 1000 index is expected to attract hundreds or thousands of additional institutional investors, according to chairman Tom Lee. Lee noted that up to 25% of the market value of a Russell 1000 stock can be owned by passive index funds. Bitmine shares rose 1.7% to $13.80 on Monday, but the stock fell 9% over the previous week in line with a decline in Ether's price. Ether fell below $1,600 last week, and Lee commented that reduced holdings reflected typical investor behavior after a three‑month price decline. In addition to Bitmine, rival treasury firms Sharplink and Forward Industries, crypto exchange Gemini, and Galaxy Digital were added to the Russell 3000 Index on Friday. The addition of these firms to major indices signals growing institutional interest in cryptocurrency assets despite ongoing price volatility.