The week beginning August 31 is not five separate trading days. It is one compressed argument about whether the Fed hikes on September 16, arriving in stages: ISM manufacturing Tuesday, JOLTS and ADP Wednesday, ISM services Thursday, and August payrolls at 8:30 a.m. Friday. Position yourself around that sequence, not around any single release in isolation.
Where the Disagreement Sits
Friday’s Jackson Hole keynote from Fed Chair Kevin Warsh has sharpened the debate to a point. His pledge to tame elevated inflation reset market expectations in the CME FedWatch Tool for a 25 basis-point hike probability to about 58%, up from about 35% the prior day. That is the market’s opening bid for this week’s data sequence.
Goldman’s Jan Hatzius disagrees. The firm’s chief economist cited a stretch of underwhelming economic readings, including sluggish retail sales, lackluster jobs numbers, and decelerating price pressures, as grounds for skepticism that the FOMC would act at its September 15-16 meeting. Hatzius wrote that Goldman’s baseline forecasts point to further improvement in inflation rather than renewed deterioration, and that inflation is more likely to improve further than to deteriorate anew as the year progresses.
JPMorgan Wealth Management has moved the other direction. Strategists there now expect the Fed to raise rates by 0.25 percentage points at the September meeting, a shift from their prior base case of no rate changes in 2026. Two drivers lowered the bar: continued supply-chain disruptions tied to the Iran conflict that are keeping energy costs elevated, and increased investor doubt about the Fed’s willingness to keep inflation contained after it left rates unchanged in July.
The backdrop that makes Friday so consequential: July nonfarm payrolls came in at negative 23,000, with the unemployment rate at 4.1%. That collapse reset hike expectations sharply lower before Warsh reversed them in a single speech. August payrolls, scheduled for release Friday, September 4, at 8:30 a.m., will either validate Warsh’s warning or hand Hatzius his proof.
The Curve Is Telling You Something
The rates market has already started voting with positions. The 2-year Treasury yield rose to 4.35% on August 28, an 11 basis-point jump in a single session. The 2s/30s spread is still meaningfully positive. That is the rate market’s way of saying a near-term hike is probable but a full tightening cycle is not. TLT bears the most binary risk: a stronger-than-expected payroll number likely pushes the long end higher still; a miss hands bulls their first real opening since Warsh spoke.
Stocks on the Radar: Small Caps vs. Mega Caps
The IWM-versus-SPY spread is the equity expression of exactly this debate. IWM has gained roughly 19% year-to-date while the S&P 500 is up about 13%, a notable reversal from the mega-cap dominance that defined the 2023-2025 bull market. Small caps have benefited from the hold-rate environment, but that thesis cracks if Friday’s payroll number forces the hike Goldman says cannot happen. A falling IWM-to-SPY ratio signals flight to quality and mega-cap defensiveness, often characteristic of late-cycle slowdowns, rising rate environments, or risk-off periods. Watch the ratio in real time Tuesday through Thursday as the staging-post data prints arrive; the ISM services read Thursday afternoon is underappreciated as a pre-Friday tell.
The CPI shows prices have risen 3.4% over the twelve months ending in July, while the PCE price index is up 3.7% over that same period. Neither number is close to 2%. A payrolls miss with wage growth still running hot would be the cruelest outcome for positioning: labor-market deterioration that does nothing to solve the inflation problem Warsh flagged.
Trader’s Action Plan
Highest conviction: do not take large directional positions in TLT or IWM until Thursday’s ISM services print clears the air. The data corridor Monday through Thursday narrows the distribution of outcomes for Friday; trade the corridor, not the Friday guess. On a strong payrolls outcome above roughly 100,000, the 2-year yield likely tests 4.50%, TLT extends its recent decline, and IWM gives back relative ground to SPY. On a weak reading below 50,000, Goldman’s call becomes defensible again: TLT rallies, IWM leads, and September hike pricing unwinds sharply. The dollar index (DXY) amplifies both scenarios. Position size accordingly before 8:30 Friday. This is not a week for conviction before the evidence arrives.
