The report became a press release. On Tuesday, Riot Platforms and Anthropic confirmed a 20-year colocation agreement covering 191 megawatts of AI data center capacity at Riot’s Rockdale, Texas campus — worth approximately $9.1 billion through June 2048, with two five-year extension options that could lift the total to roughly $16.1 billion, per CNBC and Yahoo Finance. The first 96 MW is slated to come online by the end of 2027, with the full buildout complete by June 2028. Monday’s Bloomberg-sourced mystery — which we covered while both companies were still declining to comment — resolved in the least surprising and most consequential way possible.
Anthropic struck a $9.1 billion deal with bitcoin miner Riot Platforms for AI computing: The 20-year lease covers 191 megawatts of computing capacity at Riot’s Rockdale, Texas, campus and runs through June 2048.
— Quartz (@qz) August 11, 2026
The market’s verdict was immediate. RIOT — which closed Monday at $19.40, down 5.46% before the after-hours confirmation — surged as much as 25% overnight and finished Tuesday up roughly 17%, dragging AI-infrastructure peers IREN, Applied Digital and TeraWulf higher with it. Note the two-day whipsaw: the stock fell into its ugly Q2 print Monday (a $237 million GAAP loss on $174.2 million of revenue), then repriced violently on a deal that changes none of those trailing numbers. The equity market is telling you plainly what it is paying for — and it is not exahash.
One sector becomes two
With the confirmation, the divide this column has been tracking all earnings season now has a bright line down the middle. On one side: miners with a credit-worthy anchor tenant paying contracted, dollar-denominated lease revenue for decades. Riot now has two on one campus — AMD and Anthropic — with reports pegging its total contracted data-center revenue near $9.8 billion. TeraWulf reported 71% of Q2 revenue from HPC leases, with 102 MW online at Lake Mariner and another 336 MW contracted. Hut 8 disclosed its own multibillion-dollar AI hosting agreement in July. On the other side: miners still funding a pivot rather than collecting on one. MARA posted a $611 million Q2 loss, has borrowed $750 million against 18,750 BTC of collateral — more than half its treasury — and is buying its way into energy infrastructure via Exaion and the pending $1.5 billion Long Ridge acquisition, with no announced anchor tenant. Keel simply quit, exiting US mining after a $65 million loss. Same halving, same bitcoin price, opposite balance sheets.
| Company | Anchor tenant? | The number that defines it |
|---|---|---|
| Riot (RIOT) | Yes — Anthropic (191 MW, $9.1B) + AMD | ~$9.8B total contracted data-center revenue; stock +17% on confirmation day |
| TeraWulf (WULF) | Yes — HPC lease customers | 71% of Q2 revenue from HPC; 336 MW more contracted |
| Hut 8 (HUT) | Yes — AI hosting agreement (July) | Multibillion-dollar contracted hosting backlog |
| Galaxy (GLXY) | Yes — Helios buildout | Funded at 9.875% — the market price of pivot capital |
| MARA | Not yet | $750M borrowed against 18,750 BTC; pivot by acquisition |
| Keel | — | Exited US mining after $65M loss |
Why the anchor changes the math
The difference is not cosmetic; it is the cost and availability of capital. Galaxy’s Helios financing printed the sector’s reference rate last week: 9.875% for senior secured notes against a data-center buildout. An anchor lease like Anthropic’s converts speculative megawatts into a contracted revenue stream a lender can underwrite — which is why the deal is worth more to Riot than its face value suggests. Run the simple math: $9.1 billion across 191 MW is roughly $47.6 million per megawatt over the lease’s life, and Riot’s Q2 mining segment produced bitcoin at a direct cost of $49,912 per coin against a ~$64K market. Mining remains a decent business; a 20-year investment-grade-adjacent tenant is a different business entirely — one the equity market values at a different multiple, on a different discount rate, with no halving every four years. Today’s companion guide walks through how to read these deals line by line.
It is worth pausing on who the tenant is. Anthropic — the AI company behind Claude — is signing 20-year commitments for grid-connected power the way hyperscalers did in the last cycle, and it chose a bitcoin miner’s campus to do it. As Data Center Dynamics notes, what Anthropic is really buying is scarce, already-interconnected capacity — the asset miners spent a decade accumulating when it was merely cheap, not strategic. An activist investor had publicly urged Riot to embrace what it sized as a $21 billion AI opportunity; management just booked nearly half of it in one signature.
The spine of the trade, updated
Restating the editorial framework this column committed to Tuesday, because Tuesday’s tape was its cleanest illustration yet: miner equities now trade as AI-infrastructure calls; bitcoin trades as a macro asset. On the same day RIOT rose 17%, bitcoin fell toward $63,500, the ETF complex printed its first outflow in six sessions, and our Q2 marker (a daily close above $65,000) stayed unfilled for a tenth straight August session. The correlation between the sector’s flagship equities and the asset they were built to produce keeps weakening — and that is not a bug of this market but its organizing principle. The divergence cuts both ways: a cool CPI print this morning could lift bitcoin while doing nothing for miners already re-rated as data-center REITs-in-waiting; a hot print could sink bitcoin while the anchor-tenant names barely notice, because their revenue is now signed in dollars through 2048.
What would falsify the divide thesis? Watch three things. One: whether MARA lands an anchor tenant of its own before year-end — the single event that would collapse the two-tier structure back into one; its Long Ridge closing deadline (November 30, with a $75 million break fee) is the nearest hard date on that clock. Two: whether Riot’s buildout hits its 96 MW end-of-2027 milestone; execution, not signing, is where lease value lives, and the fit-out line ($18.3 million in Q2 alone) will grow every quarter. Three: whether the next miner deal prices above or below Anthropic’s implied ~$47.6M per MW — the first real comp in what is suddenly a market. Until one of those three moves, the divide holds: two sectors wearing one ticker category, priced on different assets, exposed to different risks, and — as of Tuesday’s confirmation — no longer pretending otherwise.
Is the Riot–Anthropic deal confirmed?
Yes. After Bloomberg’s Monday report, both companies confirmed on Tuesday, August 11, 2026: a 20-year, 191 MW colocation agreement at Rockdale, Texas, worth ~$9.1 billion, extendable to ~$16.1 billion.
When does capacity come online?
The first 96 MW by the end of 2027; the full 191 MW by June 2028.
Why did RIOT stock jump if Q2 was a loss?
The market is valuing contracted, multi-decade dollar revenue — not trailing mining economics. The $237M GAAP loss was dominated by non-cash items and was known before the surge.
Which miners lack an anchor tenant?
Most prominently MARA, which is funding its pivot with $750M of bitcoin-collateralized loans and acquisitions rather than a signed lease — the key thing to watch into year-end.
Disclaimer: This article is for informational purposes only and does not constitute investment advice. Cryptocurrencies and crypto-linked equities are volatile and you can lose money. Do your own research and consult a licensed financial advisor before making investment decisions.