A few hours after the Federal Reserve's 2:00pm decision today, Microsoft and Meta report quarterly earnings — and an unlikely corner of the crypto market will be watching as closely as any tech investor. Bitcoin miners have signed more than $70 billion in AI and high-performance-computing contracts as of early 2026, per industry assessments compiled by Yellow — which means tonight's AI capital-expenditure guidance from two of the world's largest GPU buyers is now, functionally, a bitcoin-industry earnings call.
What lands tonight, as of July 29
Microsoft reports fiscal Q4 (April–June) results after the close, with the call at 5:30pm ET. Consensus sits at $87.71 billion revenue and $4.24 EPS, with Azure guided to 39–40% constant-currency growth, per TradingKey. The tension: capex trending toward $230 billion against a $627 billion commercial backlog — without Azure reacceleration, that spend triggers real free-cash-flow repricing risk, per 24/7 Wall St. Meta's Q2 consensus is $60.22 billion revenue (+27%) and $7.18 EPS, after raising its 2026 capex range to $125–145 billion in Q1, per INDmoney. Both stocks enter with roughly 95% beat odds priced in — making forward capex guidance, not the quarter itself, the true mover, per TipRanks.
Why miners turned into an AI trade
The economics that pushed miners toward AI hosting are simple: longer contracts, dollar-denominated revenue, and dramatically better profit per megawatt than mining a post-halving block subsidy with network difficulty near record levels. Miners own exactly what hyperscalers are short — grid-connected power, industrial shells and cooling — and repurposing an energized mining site is far cheaper and faster than greenfield construction, per S&P Global Market Intelligence. The marquee deals, as reported:
| Miner | AI counterparty | Reported scale |
|---|---|---|
| IREN | Microsoft | $9.7B deal; 76,000 Nvidia GB300s across 200MW at Childress, TX; ~$1.94B annualized revenue at ~85% project EBITDA margin |
| Core Scientific | CoreWeave | ~$10B contracted revenue; reported to be preparing a full exit from bitcoin mining |
| Sector-wide | Various hyperscalers | >$70B signed AI/HPC contracts; analysts project ~70% of transformed miners' revenue from AI/HPC by end-2026 |
Sources: Altrady, Yellow, S&P Global, as of July 29, 2026. IREN notably holds zero bitcoin in treasury by deliberate choice.
The Bitcoin-network feedback loop
This pivot is already visible on-chain. Bitcoin's July 26 difficulty retarget came in at just −0.74% — the gentlest adjustment in 2026's sequence of double-digit cuts — with hashrate near 917 EH/s and hashprice around $31, as we covered in Monday's difficulty update. Hashrate that once chased block rewards is being redeployed toward GPU hosting, and the AMD–Anthropic deal we analyzed last week (reported at $5 billion across 2GW) shows the demand side keeps deepening. The mechanism to understand: if hyperscaler capex keeps climbing, miner power portfolios get repriced as AI real estate; if capex guidance softens, the $70 billion contracted-pipeline story cools — and mining economics reassert themselves at the worst possible difficulty level.
The other side of the trade
The steelman against the miner-AI story deserves print. First, counterparty concentration: a miner whose revenue depends on one hyperscaler contract has traded bitcoin-price risk for single-customer risk — Core Scientific's CoreWeave exposure is the canonical example. Second, the contracts are only as good as the AI demand behind them; the reported ~85% project-level EBITDA margins on deals like IREN's are precisely the kind of economics that attract competition and renegotiation if GPU scarcity eases. Third, power: Texas grid constraints and interconnection queues limit how fast announced megawatts become revenue-generating megawatts. And for the Bitcoin network itself, every exahash redeployed to GPU hosting is hashrate that no longer secures the chain — the gentle −0.74% difficulty adjustment is manageable, but a sustained migration would revive the security-budget debate that BIP-110's September 1 activation window has already stirred.
What to watch tonight
- Microsoft's FY27 capex framing. A "disciplined" or lower trajectory is the single biggest risk to miner-AI contract valuations; reiterated or raised spend validates the pipeline.
- Azure's number vs the 36% bogey. Reacceleration justifies the spend and, by extension, the hosting deals signed against it.
- Meta's capex range. A third consecutive raise would signal the GPU land-grab is intact heading into 2027.
- Miner equities tomorrow. IREN, Core Scientific peers and the broader mining complex now trade as AI-infrastructure proxies — Wednesday-night guidance typically shows up in Thursday's miner tape before it shows up anywhere on-chain.
There is also a timing wrinkle tonight that pure-tech investors can ignore but miner watchers cannot: the earnings calls start barely three hours after Warsh's press conference ends. If the Fed surprises hawkish, hyperscaler CFOs will field capex questions into a falling tape — historically the setup in which "disciplined spending" language gets emphasized — while a relief rally invites confident reiteration of the buildout. The macro print and the capex guidance are not independent events tonight; they are one conversation, held in two rooms.
The strange loop, as of July 29, 2026: the same 2:00pm Fed decision that moves Bitcoin's price also sets the discount rate on the AI buildout that now employs Bitcoin's infrastructure — and both get repriced within six hours tonight. For a network whose miners increasingly serve two masters, Big Tech earnings night is no longer someone else's story.
Disclaimer: This article is for informational purposes only and does not constitute investment advice. Bitcoin and cryptocurrencies are highly volatile assets. Always do your own research and consult a qualified financial advisor before making investment decisions.