Can Big Tech prove AI spending is an investment, not a habit?
Tonight is the most loaded single session of the 2026 earnings season. At 2pm ET the Fed announces. At 2:30pm Warsh speaks. After the close, Microsoft and Meta report. These are not independent events. They form a chain: the Fed sets the discount rate applied to every future dollar of AI spending, and then Microsoft and Meta immediately show whether those future dollars are materialising fast enough to justify the capex.
If the Fed holds and sounds balanced, and both MSFT and META beat, the AI trade gets its first clean confirmation in months. If any one of the three goes wrong, the dominoes fall in sequence.
Test One — The Fed at 2pm ET
The base case is a hold at 3.50 to 3.75%. CME FedWatch currently assigns 64% probability to no change. But this is the second-most uncertain FOMC meeting in recent memory. Oil broke back above $100 after fresh US-Iran military exchanges. Core inflation remains sticky. The hike probability has jumped from 12.8% to 36% in a single week. Warsh has explicitly said he will not telegraph moves in advance, which means the press conference at 2:30pm could move markets more than the rate decision itself.
Three scenarios going into 2pm:
Hold with balanced language: the most supportive outcome for growth stocks. Treasury yields ease. QQQ, MSFT, META get breathing room before the earnings hits.
Hold with hawkish language: Warsh signals September is live. Yields stay elevated. High-multiple tech gets compressed before the prints even arrive. This is the trap door scenario, because MSFT at 20x forward earnings and META at high multiples re-rate downward before they even get to report their numbers.
Surprise hike: low probability but the market has not fully priced it. A 25bp hike tonight would be the single most disruptive Fed action since Warsh took over. Equities would sell off hard across the board and the earnings numbers would be secondary.
The language around Warsh's capex-as-inflation thesis is the specific sentence to listen for. Cleveland Fed Governor Hammack already said AI infrastructure spending is demand-pull inflationary. If Warsh echoes that framing tonight, it structurally changes the relationship between Big Tech capex and monetary policy for the rest of 2026.
Test Two — Microsoft After the Close
MSFT is trading at $397 heading in, down 18.3% year to date and at its cheapest forward multiple since 2023 at approximately 20x. That cheapness is the setup. The question is whether tonight's numbers validate the discount or deepen it.
Consensus: $87.67 billion revenue, $4.24 EPS, Azure growth of 39 to 40% in constant currency. Q3 already delivered 40% Azure growth with AI services contributing 16 percentage points of that. So 40% is not a new acceleration. It is holding the line.
The number that will actually move the stock is not Q4 revenue. It is Q1 FY2027 guidance. Specifically: does Azure guidance for the new fiscal year accelerate above 40%, or does it signal deceleration? Alphabet just reported 82% Google Cloud growth and the stock still fell because the market focused on $44.9 billion in quarterly capex. That precedent is the warning for tonight. Even a clean MSFT beat can trigger a selloff if the FY2027 capex guidance of $255 to $260 billion, already disclosed and significantly above the $190 billion for 2026, is met with commentary that suggests further increases are coming.
Three specific numbers to watch: Azure Q4 growth rate, Q4 capex actual versus the $40 billion-plus guided, and Q1 FY2027 Azure guidance. If Azure guides above 40% for Q1 FY2027 and capex is framed as plateauing, MSFT breaks back above $407. If capex comes in hot again and Azure guidance is flat to 40%, the stock tests $376.
The $627 billion commercial backlog, up 99% year on year including OpenAI commitments, is the single most reassuring number Microsoft can discuss tonight. That is nearly two years of current annualised revenue already contracted. If Satya Nadella leads with that number, the tone of the call changes immediately.
Test Three — Meta After the Close
Meta guided Q2 revenue at $58 to $61 billion. Consensus sits at $60.2 billion. AI-driven advertising efficiency is the core bull thesis: every dollar spent training Llama and building recommendation infrastructure shows up as higher CPMs and better ad targeting, which flows directly to revenue per user. That flywheel is what Meta has been selling to investors for two years, and Q2 results are the clearest test of whether it is compounding.
Capex is the central tension. Meta's 2026 capex consensus has risen by over $10 billion since last quarter to approximately $136.7 billion, a year-on-year increase of $67 billion from 2025. Reality Labs continues to lose around $20 billion annually. The question the market needs answered is not whether Meta is spending on AI. It clearly is. The question is whether the advertising revenue acceleration that results from AI is growing faster than the cost base building it.
Two numbers decide META tonight: Q2 revenue versus $60.2 billion consensus, and Q3 guidance range versus what analysts are modelling. Zuckerberg's commentary on Llama adoption and advertiser ROI data is what moves the stock beyond the headline. Any confirmation that AI-driven ad efficiency is compounding at the rates Meta has described in prior calls turns META into the clear winner of tonight's session.
What Amazon and Apple Mean for Thursday
Apple and Amazon report July 30. Tonight sets the context. If MSFT and META both beat cleanly and the Fed holds without hawkish language, Thursday's session starts from a risk-on base that benefits both names. Apple at $343 is the more defensive of the two. Amazon at $228 is the purer AI capex play, with AWS growth and advertising efficiency as its two key lines. AWS backlog commitments jumped to $364 billion and the hyperscaler capex cycle's durability is directly confirmed or challenged by what MSFT says about Azure demand tonight.
The Trade Framework
The Fed holds at 2pm: hold is the most likely outcome. Trade accordingly by not pre-positioning aggressively in either direction before 2pm. The tail risk is real enough that a 36% hike probability should command respect.
After the Fed, before the close: if Warsh sounds balanced, the setup for MSFT and META improves. If hawkish, reduce exposure before the prints.
MSFT at $397 going into tonight: 20x forward earnings is genuinely the cheapest entry point in years. The downside risk is a repeat of Q2's dynamic, when the company beat earnings and the stock fell 10% because capex guidance dominated sentiment. The upside is that the $627 billion backlog gets the attention it deserves and Azure acceleration above 40% resets the narrative. Options are pricing approximately 7% move. The asymmetry favours a mild bull outcome if you believe the commercial backlog is real.
META at $588: the ad-efficiency AI flywheel is either working at scale or it is not. Tonight is the clearest data point available. Revenue above $61 billion with an upward Q3 guide is the cleanest bull signal. Revenue at the low end of $58 billion with flat guidance is the bear signal. The capex overhang is the structural risk for both names regardless of tonight's number.
The Fed sets the valuation ceiling. Microsoft and Meta test the earnings floor. Tonight you find out which one matters more.
I am not a financial advisor. Trade wisely, Comrades.
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