This is the biggest week of earnings season, and it collides head-on with the Federal Reserve. About one-third of the S&P 500 reports, the Fed decides on rates Wednesday at 2 p.m. ET — a hold at 3.75% to 4.00% is priced at roughly 83% to 90%, with a December hike still on the table — and the three AI hyperscalers report within 30 hours of that decision. The market comes in nervous: the S&P 500 fell 0.52% on Friday to 7,623.68 for a second straight weekly decline, the Dow dropped 1.23% to 52,215.16, the Nasdaq slipped 0.21% to 25,955.34, the 10-year Treasury yield closed at 5.00%, and Brent crude settled at $116.72 a barrel. Monday morning offered an early, calmer scorecard: Verizon beat on profit, added 406,000 postpaid phone customers, and raised its full-year guidance. The rest of the week will not be that quiet.

1. Microsoft (MSFT) — Azure has to hit 45%, hours after the Fed

Microsoft reports fiscal first-quarter 2027 results after the close on Wednesday, October 28 — the same afternoon as the Fed decision. Consensus is earnings of $4.71 a share on revenue of $90.63 billion, inside Microsoft’s own guide of $89.85 billion to $90.95 billion, up 16% to 17% year over year. Last quarter Microsoft posted revenue of $90.0 billion, Microsoft Cloud revenue of $59.3 billion, up 27%, and Azure growth of 43%.

Azure is the only number that really matters on Wednesday. Microsoft guided Azure to grow approximately 45% in constant currency this quarter, with growth expected to keep accelerating through the first half of fiscal 2027, and capacity — not demand — is still described as the constraint. The spending side gets equal billing: first-quarter capital expenditures were guided to over $50 billion including a lease reclassification, calendar 2026 capex is seen at about $175 billion, and last quarter’s capex was $41 billion including finance leases. Options priced about a 4.2% move on the October 23 close of $524.51, though Microsoft has moved more than the implied move after six of its last eight reports.

What to watch: Azure’s constant-currency growth rate against the 45% guide, Intelligent Cloud revenue against the $40.95 billion to $41.25 billion guide, and whether capex commentary frames the build as filling contracted demand rather than open-ended escalation.

Caution flag: This is the Meta lesson from last week applied to Microsoft. Meta printed record sales and still fell nearly 7% because the market focused on the AI bill and negative free cash flow. A headline beat with a capex surprise can sell off the same way.

2. Alphabet (GOOGL) — can Cloud grow 82% again while spending tops $195 billion?

Alphabet also reports after the close on Wednesday, October 28, with the call at 4:30 p.m. ET. Consensus is earnings of $3.03 a share on revenue of $127.91 billion. The stock needs a good night: it closed Friday at $320.21, down about 6% over five sessions and well below analyst mean targets around $429.

The engine is Google Cloud. Last quarter Cloud revenue hit $24.8 billion, up 81.8% year over year — the fastest growth in the eight-quarter window — with operating income of $8.8 billion for a 35.6% margin, and a backlog of about $514 billion. Search remains the cash base that funds everything else, so advertising momentum matters too. The tension is the same one that sank the stock after the second quarter: Alphabet has guided 2026 capital spending to $195 billion to $205 billion, capex was $44.9 billion in the second quarter alone, and free cash flow turned negative that quarter even as Cloud boomed.

What to watch: Google Cloud’s growth rate and margin against last quarter’s 82% and 35.6%, Search advertising growth, and any change to the $195 billion to $205 billion capex guide or the signal that 2027 spending will rise significantly again.

Caution flag: Alphabet has delivered double-digit revenue growth for 12 straight quarters, which means the bar is consistency, not a single beat. If Cloud decelerates sharply while capex stays at the top of the range, investors have already shown — last quarter — that they will sell the spending first and ask questions later.

3. Amazon (AMZN) — AWS is the story, the holiday guide is the verdict

Amazon reports after the close on Thursday, October 29. Consensus is earnings of $1.96 a share on revenue of $202.16 billion — right at the top of Amazon’s own guide of $197 billion to $202 billion in net sales, with operating income guided to $22.5 billion to $26.5 billion, against $17.4 billion a year earlier. Amazon closed Friday at $248.00, and options priced the biggest implied move of the big three: about 7.3% either way.

AWS decides the reaction. Last quarter AWS revenue was $42.2 billion, up 36.8% — its fastest growth in 18 quarters — with segment operating income of $16.6 billion at a 39.4% margin, while advertising added $19.8 billion. The debate since then has only sharpened: Deutsche Bank raised its AWS growth forecast to 41% for the quarter, while Amazon’s full-year capex plan sits at about $220 billion and trailing free cash flow was negative in the second quarter after the property and equipment surge. Monday’s Verizon news even fed the AWS story — Verizon signed a deal valued at more than $2 billion with AWS to scale distributed computing for AI workloads.

What to watch: AWS growth against last quarter’s 36.8%, AWS margin against 39.4%, the fourth-quarter holiday guide — the closest thing earnings season produces to a consumer survey with money behind it — and whether the $220 billion capex plan moves again.

Caution flag: Consensus revenue already sits at the top of Amazon’s guide, so a merely in-line print leaves little cushion. If AWS slows and capex rises in the same release, the Meta pattern — great sales, punished stock — is the template to fear.

4. Exxon Mobil (XOM) — record highs into Friday, with oil doing the heavy lifting

Exxon Mobil reports before the open on Friday, October 30, alongside Chevron. Consensus is around $3.96 to $4.00 a share on roughly $106 billion of revenue, against $1.88 a share a year earlier — a gap that tells you almost everything about what oil has done. Friday’s session made the setup vivid: Brent settled up 3.14% at $116.72, its highest settlement since April, WTI settled at $103.27, energy was the only clear sector gainer, and both Exxon and Chevron closed at record highs — Exxon up 2.79% to $183.21 and Chevron up 2.88% to $233.21.

The second quarter showed what high prices do to this machine: Exxon earned $14.5 billion, or $3.48 a share, on about $116 billion of revenue, with $23.6 billion of operating cash flow. Friday’s report tests whether that windfall is being converted into production growth, buybacks, and discipline — or simply collected. Watch also for an update on the Joliet, Illinois refinery, which was offline last week and expected to return to service this week.

What to watch: Cash flow and shareholder returns at $100-plus oil, production volumes, refining margins with Joliet restarting, and management’s spending discipline if crude stays elevated.

Caution flag: Exxon closed Friday above the $179.41 consensus analyst target, priced for oil staying high. Oil already eased about 2% in early Monday trade on reports of Qatari mediation with Tehran — if the geopolitical premium unwinds, the windfall math and the stock’s record-high setup unwind with it.

The bottom line: One question runs through the whole week: is the AI buildout earning its keep fast enough? Microsoft needs Azure at 45%, Alphabet needs Cloud momentum without another free-cash-flow scare, and Amazon needs AWS acceleration to justify a $220 billion spending plan — all of it landing hours after a Fed that is expected to hold at 3.75% to 4.00% while keeping December live. Exxon is the hedge on the other side of the trade: if oil, not AI, stays the market’s main worry, Friday’s energy prints show where the cash is actually flowing today. Around the main events, watch Eli Lilly, Mastercard, and Caterpillar on Thursday morning, Intel and Coinbase on Thursday night, and Apple and Palantir on Monday, November 2.

Disclaimer: This post is for educational and informational purposes only and is not financial advice, a recommendation, or an offer to buy or sell any security. Investing involves risk, including possible loss of principal. Do your own research and consult a qualified financial professional before making investment decisions.