Tom Lee's BitMine Hits NYSE as Ethereum Treasury Expands Buyback to $4 Billion

BitMine NYSE uplisting became official on Thursday when BitMine Immersion Technologies (BMNR) graduated from the NYSE American exchange to the full New York Stock Exchange, a move the company is framing as a watershed moment for its Ethereum treasury strategy. Shares were changing hands around $21.75 shortly after the transition, up nearly 1% since opening on the bigger venue.

Tom Lee Calls It a Milestone. Is It?

BitMine Chairman Tom Lee marked the day with enthusiasm. "Today, BitMine achieved a major milestone by being uplisted to the 'Big Board' NYSE," Lee said in a statement. "The NYSE is the envy of capital markets around the world, and BitMine is proud to be the newest company traded on this exchange."

Fair enough. Getting onto the NYSE proper is a real credentialing moment for any company. It signals a certain level of institutional legitimacy, the kind that makes pension funds and index trackers at least glance your way. For a crypto-adjacent treasury firm that essentially bets its balance sheet on Ethereum prices, that stamp of approval matters more than it might for a traditional company.

But here's the part that deserves more scrutiny: BMNR shares have dropped about 63% over the past six months. Ethereum itself is down 55% from its August 2025 all-time high of $4,946. So the celebration is real, but it's happening against a backdrop that isn't exactly celebratory.

Today, BitMine achieved a major milestone by being uplisted to the 'Big Board' NYSE. The NYSE is the envy of capital markets around the world, and BitMine is proud to be the newest company traded on this exchange.

The $4 Billion Buyback Nobody Has Used Yet

Alongside the BitMine NYSE uplisting announcement, the board of directors also signed off on a dramatic expansion of its existing share repurchase authorization. The program, previously capped at $1 billion, now carries a ceiling of $4 billion.

"BitMine's expanded $4 billion buyback reflects our commitment to shareholders," Lee said. "There may be a time in the future when BitMine shares are trading below intrinsic value, and the Company wants to be in a position to accretively retire common shares."

Here's the thing though. BitMine is already trading below intrinsic value by most conventional measures. Publicly available data shows the firm's mNAV ratio currently sits below 1, meaning the market is pricing its shares at a discount to the assets it actually holds. Yet the company's actual behavior has been to keep accumulating Ethereum rather than pulling the buyback trigger. Last week alone, BitMine added around $150 million worth of ETH to its treasury. Not a single share has been repurchased under the expanded program to date, and the company did not respond to requests for comment on that point.

There may be a time in the future when BitMine shares are trading below intrinsic value, and the Company wants to be in a position to accretively retire common shares.

How Does mNAV Work for Ethereum Treasury Firms?

What is mNAV and why does it matter for BitMine?

mNAV is the ratio that tells you whether a digital asset treasury firm is trading at a premium or discount to the actual crypto it holds. An mNAV above 1 means the market values the company at more than its net assets — investors are paying for the strategy, the management, the upside optionality. Below 1 means the market thinks the company's shares are worth less than its holdings on a liquidation basis. That's where BitMine sits right now.

This is the same dynamic playing out across the sector. Competitor Ethereum treasury firm SharpLink (SBET) has made it an explicit policy: buy ETH when mNAV is above 1, buy back shares when it falls below. That's a clean framework. BitMine has now authorized the same capability in theory, but in practice keeps routing capital into ETH.

The gap is hard to ignore. BitMine's 4.8 million ETH position is valued at over $10.6 billion in net assets with Ethereum trading around $2,216. Add roughly $14 million in BTC and $864 million in cash, and total holdings come to about $11.4 billion. Meanwhile, the intraday market cap is sitting at approximately $9.81 billion. You don't need a finance degree to see that the stock is cheaper than the assets backing it.

What Does the NYSE Uplisting Mean for BMNR Investors?

In practical terms, moving from NYSE American to the full NYSE opens the door to a broader pool of institutional capital. Some funds are restricted from buying shares listed on smaller exchanges. Index inclusion eligibility improves. Analyst coverage tends to follow. These aren't guaranteed outcomes, but they're real possibilities that come with the territory.

The harder question is whether any of that changes the fundamental picture for a stock that has lost 63% of its value in six months while sitting on a treasury that's theoretically worth more than the company's entire market cap. A bigger exchange doesn't fix a broken mNAV. Only buying back shares or watching ETH recover will do that.

BitMine is betting on the latter. Every week it keeps buying Ethereum instead of shares, it's making a statement about where it thinks prices are going. Whether that conviction is rewarded depends entirely on what ETH does from here. Right now, the market isn't pricing that thesis generously.