KEY POINTS
- S&P 500 futures sit at 7,176.50 ahead of Powell's final FOMC decision and after-hours earnings from Microsoft, Alphabet, Meta, and Amazon — four reports that account for roughly a quarter of the index's market cap.
- Tuesday's 0.49% S&P slide and 0.9% Nasdaq drop on the OpenAI–Microsoft revenue cap headline reset expectations into a session where AI capex commentary, not the Fed dot plot, will likely move the tape.
- Watch the 7,200 level on the S&P 500 cash index and Azure growth in the Microsoft release at 4 p.m. ET — those two prints set the tone for the rest of earnings season.
Two Catalysts, One Window
S&P 500 futures traded at 7,176.50, up 0.08%, ahead of a session that hands traders two of the year's biggest scheduled catalysts inside a six-hour window. Dow futures held at 49,311, up 0.03%, and Nasdaq 100 futures gained 0.37% to 27,268.50, reflecting a market that is leaning slightly into the risk but not committing capital ahead of the Federal Reserve's 2 p.m. ET decision and the after-the-bell earnings gauntlet from Microsoft, Alphabet, Meta, and Amazon.
The setup is unusual. The Fed itself is the smaller of the two events. CME's FedWatch tool prices a 100% probability that Jerome Powell holds the policy rate steady at 3.5%–3.75% in his final meeting as chair, his third consecutive pause. Traders care about the press conference tone, not the decision. The bigger move probably comes between 4:01 p.m. and 4:30 p.m. ET, when four companies that together represent roughly 22% of the S&P 500's market capitalization deliver quarterly numbers and, more importantly, fresh AI capital expenditure guidance.
Why Tuesday Mattered
Tuesday's session sets the context. The S&P 500 fell 0.49% to 7,138.80, the Nasdaq Composite slid 0.9% to 24,663.80, and the Dow gave back 25.86 points to close at 49,141.93. The damage was concentrated in semiconductors and AI infrastructure names after a Bloomberg report on the restructured Microsoft–OpenAI partnership showed a cap on the revenue share Microsoft will receive going forward and pointed to softening near-term economics in OpenAI's commercial business. Oil's three-percent jump on stalled US-Iran talks layered an additional inflation worry on top of the AI growth question.
The takeaway for the tape: positioning into Wednesday's earnings is lighter than it was a week ago, and option-implied moves on the four reporters have widened. Microsoft options are pricing a 5.7% one-day move, Meta 7.1%, Alphabet 6.4%, and Amazon 7.8%, according to dealer desks circulating to clients. Those are above the trailing four-quarter averages and tell traders that a single bad capex line — say, a sandbagged Azure number or an unexpected step-up in Meta's already eye-watering $115 billion to $135 billion 2026 capex range — can drag the broader index 50 to 100 basis points in either direction.
What the Fed Window Actually Tells You
Powell's press conference at 2:30 p.m. ET will be parsed for a single signal: how concerned the Fed is about Iran-driven energy inflation versus a labor market the FOMC itself flagged in March as "moderating but not breaking." March CPI ran at 3.3%, the highest annual print since May 2024, and the bulk of that move came from energy and core services. If Powell signals that the bar for a 2026 rate cut has risen, expect the front end of the curve to back up another five to seven basis points and growth equities, particularly the long-duration software names, to give back recent gains.
The bond market is already leaning that way. The 10-year Treasury yield closed Tuesday at 4.35%, a one-month high, with the curve steepening modestly as traders price in the possibility that Powell's successor — widely expected to be Kevin Warsh once Powell's term ends in May — runs a slightly more restrictive policy stance. That is a meaningful headwind for any earnings beat that depends on multiple expansion rather than EPS surprise.
Levels and Tells
The technical map into the close is clean. S&P 500 cash sits 32 points below its all-time intraday high of 7,170, set last Thursday. A close above 7,180 puts the index back in breakout territory and likely triggers systematic re-engagement from CTAs that trimmed exposure during Tuesday's session. A close below 7,100 brings the 50-day moving average at 7,036 into play and implies the AI capex narrative is breaking. The Nasdaq 100's 27,000 level is the equivalent line in the sand.
The single number that matters most after the close is Microsoft's Azure revenue growth. Consensus is centered at 32% in constant currency, with whispers as high as 34%. Anything below 30% confirms the Tuesday selloff thesis that AI infrastructure demand is plateauing. Anything above 33% — particularly with strong guidance — likely sparks a relief rally that lifts the entire AI complex into Apple's Thursday print.
The Friday jobs report and next Tuesday's JOLTS release for March will then determine whether the Fed's restrictive hold has cracked the labor market enough to bring the September meeting back into play as a cut window.
