BitMine rolls out 9.5% preferred stock as ETH paper losses top $8.5B

The deal — quick and slightly dramatic

BitMine just announced a sale of 3 million shares of Series A perpetual preferred stock with a 9.5% coupon and a $100 stated value — that’s a potential $300 million raise if every share finds a home. If fully taken, the new securities would add roughly $28.5 million in annual dividend obligations (paid weekly when declared), which works out to about $548k a week.

The company says the cash could be used for general corporate needs: buying more ETH, beefing up staking and validator operations, making related strategic investments, repurchasing common stock, or other usual corporate shenanigans. The new shares have redemption and liquidation terms that start at a $100 preference, can step up if dividends go unpaid, and allow BitMine to call the stock at premiums that fall over time (110% in the first 18 months, 105% from 18 months to three years, then 100% thereafter, plus unpaid dividends).

Why this matters (and why it’s not risk-free)

On paper, BitMine is doubling down on an ETH yield play: the firm holds more than 5.3 million ETH (roughly 4.5% of circulating supply) and has staked a big chunk to collect protocol rewards. Management says staking revenue runs in the hundreds of millions annually, which is the whole point — generate recurring yield from ETH so you don’t have to sell the coins during a hangover market.

But reality bites. The company’s unrealized losses on ETH have ballooned to the neighborhood of $8 billion-plus after ETH slid below BitMine’s average buy price. So while staking yields are real, the underlying asset’s price swing creates a mismatch: the firm is promising fixed cash payouts to preferred shareholders while the value of the collateral (ETH) can gyrate wildly.

Important caveat: BitMine is not setting aside a dedicated pool of staking income to cover these preferred dividends. The filing makes clear dividends may come from available cash, staking receipts, asset sales, future financings, or other sources. If dividends aren’t paid, they accumulate and compound weekly, and the rate on unpaid dividends can step up over time (capped at a 15% annual rate). Translation: missed payments can get expensive fast.

The structure resembles other crypto-treasury financing schemes that turn investor appetite for yield into a balance-sheet funding tool. That’s clever — when it works you can keep buying crypto with capital markets’ help — but it also means public investors are taking on an obligation tied to an asset that can drop hard before those cash payments become manageable.

Bottom line: this is a high-yield, high-volatility bingo. Income-hungry investors might find 9.5% tempting, and staking revenue could cover the payout in normal times. But there are real risks — big unrealized losses, no dedicated income pledge, potential illiquidity of staked ETH during stress — so the shiny coupon comes with a few caveats (and maybe a tiny flashing warning sign).