FOMC Decision Week: PCE Inflation and Big Tech Earnings

Across the sessions beginning Monday, the forces that have been moving markets all month collide on one calendar. The Federal Reserve reveals its rate decision Wednesday afternoon, and 40 minutes earlier the same morning produces both September's inflation report and the first official look at third-quarter growth. Then Microsoft, Alphabet and Amazon report back to back after the close. A portfolio manager does not have to choose between the rate story, the earnings story and the inflation story this week, because all three arrive inside 48 hours.

The Fed holds Wednesday; December is the real fight

The overnight consensus is a pause. In a Reuters poll of 100 economists taken Oct 16 to 20, 94 expect the Federal Open Market Committee to hold its target range at 3.75% to 4.00% at Wednesday's decision, and CME FedWatch futures price about an 83% chance of no change. This is Chair Warsh's fourth meeting since September's unanimous quarter-point hike set the range.

Related reading: The Week Ahead: FOMC Minutes, the Diesel Crunch, and Earnings Test a Narrowing Rally.

The real decision is December, which the energy shock has repriced more aggressively in recent weeks. The same 100 economists expect a quarter-point hike in December. What would shift the October view is a hawkish surprise: statement wording or press-conference framing that treats December as near-certain rather than data-dependent, which would push front-end yields higher. An upside core PCE number Wednesday morning would harden that expectation before the 2:00 PM ET statement ever prints.

Wednesday is the inflation-growth collision. September's Personal Consumption Expenditures report, the Fed's preferred inflation gauge, is expected to show headline prices up 0.5% month over month and 3.7% year over year, with core up 0.3% monthly and 3.1% yearly, per the WSJ survey median. The same 8:30 AM ET window brings the Q3 GDP advance estimate, seen at plus 3.2% annualized against 2.2% in the second quarter, with the Atlanta Fed's nowcast around 3.5%.

For the broader framework, see our Fed policy coverage.

Related reading: September CPI Report Preview: Energy Headline vs Cooling Core, the Print That Decides October Hike Odds.

Read together, the pair writes the December script. Core PCE at 3.1% yearly, still well above the 2% target, tells the Fed the last leg of disinflation has stalled. Add growth near 3% and the committee has cover to hike in December without worrying about breaking anything. Flip it, strong inflation with weak growth, and the market's stagflation worry, the fear behind this month's energy repricing, gets harder to dismiss. A core print at or above 0.3% monthly reopens the December debate; one below it hands the doves room.

Friday brings the third-quarter Employment Cost Index, the Fed's preferred wage-cost measure, expected up 0.8% quarter over quarter against 0.9% in the second quarter. ECI is the cleanest reading on whether wage growth is feeding services inflation. A hotter print keeps the December hike on the front burner; a cooler one gives the committee permission to wait.

Related reading: FOMC October 2026 Decision Prices an 85.1% Hold as Brent Sits at $113.

Mega-caps and housing fill out the week

The tape's AI barometer resets midweek. Microsoft reports Q1 fiscal 2027 Wednesday after the close, with consensus earnings per share of $4.71 against $4.13 a year ago, and Alphabet reports Q3 in the same after-hours window at $2.94 against $2.87. Amazon follows Thursday after the close at $2.01 against $1.95. The calls fall between 4:30 and 5:30 PM ET, so the market's answer comes Thursday and Friday, not on print night. The tell is AI capital spending and cloud growth: these three set the tone for whether record valuations still clear the quarter, and whether guidance shows AI buildouts starting to pay for themselves, the recurring investor question all season.

Housing clusters Tuesday. September new residential construction, starts and permits, and new home sales both land Oct 27, with sales seen at 655,000 annualized, down 4.2% month over month from 684,000. August Case-Shiller, also Tuesday, follows a 2.47% yearly gain. Thursday brings the weekly PMMS 30-year mortgage rate, last seen above 6.8%. With the 10-year Treasury just under 5% and mortgage rates elevated, affordability stays the binding constraint on purchase demand, and what the Fed does Wednesday decides whether that clamp tightens or loosens.

Related reading: September CPI Rises 3.7% as Core Inflation Runs Hot.

Levels that matter, and the two-wars dashboard

The gauges to watch, all as of Friday's close: the 10-year Treasury yield sits at about 4.99%, just below 5%, after breaking under that level on a flight to safety, and a decisive push back above 5% on a hawkish Fed or hot PCE is the macro surprise. The S&P 500 closed at 7,623.68 in index points, with SPY, its ETF, at $759.97, the VIX near 19.5 and the index's 52-week high at 7,844.52. Gold's December contract is just above $4,000 at $4,007.90 an ounce, WTI crude at $103.27 and Brent at $111.70; the energy complex has driven the December repricing, so any de-escalation signal could unwind part of it. Bitcoin trades near $80,332 and Ether near $2,332, still behaving as a rates and liquidity asset, supportive on a dovish Fed and pressured on a hawkish one.

The two-wars franchise dashboard, printed verbatim from the fact sheet it is maintained on, keeps the supply-side shock this week is pricing in view. Live quotes have moved higher since; the tracked figures carry their as-of dates.

Two-wars dashboard: Hormuz transits (daily) 1 vs 85/day baseline; Brent settle 104.32 $/bbl; ULSD (HO) crack vs Brent 92.44 $/bbl; EU diesel price y/y 38%; Russian refinery crude runs 3.8 mb/d (June; ~30% below year earlier); EU gas storage 70.6%; Ukraine agricultural exports, August (all routes) 1.48 Mt (-48.6% MoM; Odesa ports 152,126 t, -93.6%) (oldest figure as of 2026-09-11).

Those figures sit underneath the oil tape. Hormuz transits running near one vessel a day against an 85-vessel baseline, a diesel crack near $92 a barrel and EU diesel prices up 38% year over year are the supply-side reality inside the December-hike conversation. A truce that actually restores flows is the single biggest surprise risk to the oil complex this week.

The through-line: October's hold is priced, December is not settled, and the earnings tape will show whether 3% growth can coexist with 3% core inflation without cracking the mega-cap bid. Watch the double release Wednesday, the chairman's press conference at 2:00 PM ET, and how the three tech names guide on AI capital spending. The market's real question is what the Fed signals about December, and the energy complex is what keeps that move in play.

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