KEY POINTS
- Microsoft, Alphabet, Meta, and Amazon report Q1 earnings after the close Wednesday, with combined 2026 AI capital expenditure guidance of $600 billion to $645 billion — roughly a quarter of total S&P 500 capex from four companies.
- Microsoft Azure constant-currency growth, expected at 32%, is the single most important number reporting tonight; Meta's 2026 capex range of $115–135 billion will set the AI infrastructure tone for the second half.
- Each name is up 10%+ this month going into the print, which means the bar is high and the asymmetry is to the downside if any of the four reports a soft AI revenue conversion or a capex step-up without commensurate guidance.
Four Reports, One Question
Microsoft, Alphabet, Meta, and Amazon report fiscal Q1 earnings after the close on Wednesday, and they are doing it with a single shared question hanging over the tape. Combined, the four are guiding to between $600 billion and $645 billion in 2026 AI capital expenditure. That is roughly a quarter of total S&P 500 capex coming from four companies, and the question Wall Street wants answered tonight is whether that money is starting to convert into the AI revenue the consensus has spent two years pricing in.
The setup is unforgiving. Each of the four stocks is up more than 10% in April alone, with Apple — reporting Thursday — up over 6% in the same window. That kind of pre-print momentum compresses the asymmetry. A clean beat-and-raise from any of the four is partially in the price already; a miss or a mixed-signal print on capex translation gets punished. Options markets are pricing one-day moves in the 5.7% to 7.8% range across the group, the widest implied volatility band into a single earnings night since the August 2024 sell-off.
The Microsoft Azure Number
The most important single line item across all four reports is Microsoft Azure constant-currency revenue growth. Consensus is centered at 32%, with whisper numbers reaching 34%. The reason it matters: Azure is the cleanest read on enterprise AI infrastructure spend, the segment with the longest sales cycle and the most predictive value for the next four quarters. Anything below 30% confirms the thesis TheStreet's Tuesday writeup floated that AI infrastructure demand is plateauing as customers digest 2025 commitments before signing fresh ones.
Microsoft also enters the print with a fresh complication: the restructured OpenAI partnership announced Sunday, which caps the revenue share Microsoft will receive from OpenAI going forward. Tuesday's market reaction — chip stocks down sharply, Nasdaq off 0.9% — was less about the headline economics than about what it implied for the next phase of OpenAI's capital structure. If Satya Nadella is asked on the earnings call to clarify Microsoft's go-forward exposure to OpenAI's commercial trajectory, the response will move both names independent of the rest of the print.
Meta's Capex Range Is the Tell
Meta enters its Q1 print already committed to a 2026 capex range of $115–135 billion, the largest absolute capex line of any company in the S&P 500. The range itself is wider than usual, and the question Mark Zuckerberg's team needs to answer is whether the upper bound is even being approached. If Meta narrows the range upward — say to $125–135 billion — that signals proprietary AI infrastructure demand is exceeding internal forecasts and positions the company as the most aggressive infrastructure builder in the cohort. If the range tightens downward, traders read it as a cooling AI capex narrative and the stock gives back its month-to-date gains.
The complicating factor at Meta is Reality Labs. Capex guidance does not break out the AI infrastructure share cleanly from VR/AR-related spend, which has historically been a margin sink. Sell-side desks are looking for any commentary that suggests management is rebalancing the mix toward higher-IRR AI infrastructure and away from Reality Labs experimentation. That reallocation, if it happens, is the cleanest bull case for the stock.
Alphabet and Amazon: The Quieter Stories
Alphabet's setup is more nuanced. Consensus expects $2.64 EPS on $92.2 billion in revenue, with operating margins at or above 17%. The story for Alphabet has rotated from "search disruption risk from generative AI" to "Google Cloud as a profit driver." If Cloud margins clear the 17% bar with room to spare, Alphabet effectively stamps out the search overhang for another quarter and the stock has the cleanest path higher of the four.
Amazon is the wildcard. AWS growth has been steady but unspectacular at roughly 19% in recent quarters, and the question is whether the AI infrastructure demand that lifted Microsoft Azure into the low 30s is starting to bleed into AWS growth as well. A surprise lift to 22% or higher would reset the AWS narrative for 2026 and 2027. A continued 19% print without a margin lift puts the burden of proof back on AWS to demonstrate it is participating in the AI capex cycle the rest of the cohort is leading.
How to Read the Tape Wednesday Night
The sequencing matters. Microsoft reports first, around 4 p.m. ET, and Azure growth becomes the immediate read on the entire AI complex. If the number is strong, the after-hours bid extends into Alphabet and Meta. If it is weak, the rest of the prints face a hostile tape regardless of their own results. Amazon comes last and tends to trade more on AWS growth and operating income than on top-line beats.
The forward look extends past Wednesday night. Apple reports Thursday after the close and Friday's payrolls report drops the next morning. By the close of trading Friday, traders will have a complete data set: four Mag 7 prints, Powell's final FOMC, Q1 GDP, and the April employment report. That combination either confirms the AI capex narrative carrying the index higher, or it forces a meaningful repricing through the second week of May into the Treasury refunding announcement.
