Skip to navigationSkip to main contentSkip to right columnReuben Gregg Brewer, The Motley FoolSat, June 27, 2026 at 6:35 AM GMT+2 4 min readWhat is Ethereum (CRYPTO: ETH) worth? That's the big question facing BitMine (NYSE: BMNR) shareholders today. How you answer that question will likely predict whether you think owning BitMine is a good or bad idea. For me, the fact that BitMine owns nearly 5% of all of the Ethereum created is a signal to sell the stock and avoid the cryptocurrency. Here's why.When you buy shares in a company, you are buying a part of an operating business. The business is what backs the valuation of the stock. Sure, in a worst-case scenario, a company may go bankrupt. But there are still physical assets that can be sold to repay creditors and, if anything's left, return some value to shareholders.