Fed’s First Hike Since July 2023 Leaves October Rate Markets Nearly Even

The Federal Open Market Committee voted 12–0 on Sept. 16, 2026, to raise the target range for the federal funds rate by a quarter percentage point, to 3.75%–4% — the first increase in 1,148 days, since the committee lifted the range to 5.25%–5.5% on July 26, 2023. Three days later, event-contract markets were already pricing better-than-even odds that the move would not be a one-off: as displayed on Sept. 19, Polymarket showed a 55.5% implied probability of another quarter-point increase at the October meeting, and Kalshi showed 53%.

The policy path between those two hikes ran the other direction. The Fed cut the range by half a point to 4.75%–5% in September 2024, cut again to 4%–4.25% in September 2025, and was still holding at 3.5%–3.75% as of June 17, 2026. In its Sept. 16 statement, the committee said inflation remains elevated and that the action “will support a timelier return” to its 2% goal.

October contracts sit near an even split

Polymarket’s “Fed Decision in October?” market displayed a 55.5% implied probability of a 25-basis-point increase against 43.5% for no change when retrieved on Sept. 19. The contract resolves to the basis-point change in the upper bound of the target range versus its level before the October meeting, using the FOMC statement issued after the Oct. 27–28 meeting as the resolution source. Changes that do not match a displayed bracket are rounded up to the nearest 25 basis points, and if no statement is released by the end date of the next scheduled meeting, the market resolves to “No change.” The market opened June 17, 2026.

Kalshi’s October market showed “Hike 25bps” at 53%, “Fed maintains rate” at 45%, and “Hike >25bps” at 2%, with about $1.93 million in displayed volume on that market and an Oct. 28 contract date, as displayed at retrieval on Sept. 19.

December markets lean harder toward tightening

Polymarket’s December market priced a 25-basis-point increase at 67.5% against 30.5% for no change, resolving off the FOMC statement after the Dec. 8–9 meeting; that market opened July 29, 2026. Kalshi’s December market showed “Hike 25bps” at 67%, “Fed maintains rate” at 31%, and “Cut 25bps” at 2%, with about $596,000 in displayed volume on that market and a Dec. 9 contract date, as displayed at retrieval Sept. 19. The Fed’s published calendar confirms the remaining 2026 meetings on Oct. 27–28 and Dec. 8–9.

All of the displayed percentages are snapshots of live markets retrieved on Sept. 19, three days after the hike — not settled outcomes.

The Fed’s own projections point the same direction

The median participant in the September Summary of Economic Projections judged the appropriate federal funds rate to be 4.1% at the end of 2026 and again at the end of 2027 — above the 3.875% midpoint of the new target range. Sixteen of the 18 participants penciled in a year-end 2026 midpoint consistent with at least one more quarter-point move: 12 at 4.125% and four at 4.375%, while two projected 3.875%, implying no further change. The document records each participant’s individual assessment of appropriate policy, not a committee plan.

Median PCE inflation was projected at 3.7% for 2026, falling to 2.3% in 2027 and 2.0% in 2029. Chairman Warsh read those medians aloud at his Sept. 16 press conference while noting that, as in June, he had submitted no projection of his own.

Why the committee moved

Warsh told reporters the decision came as “the American economy appears to be strengthening,” with hiring, private-sector earnings and business capital investment all improving in recent months. He repeated that he would be “hard-pressed to describe broad financial conditions as restrictive,” a view he said was widely shared on the committee, and described the hike as removing “a dose of accommodation.”

On inflation, he said it has run above target for more than five years: “The plain fact is that inflation is too high and has been for too long.” Based on the most recent CPI and PPI data, he estimated the 12-month change in total PCE prices was likely around 3.6% in August, with core PCE running at about 3.2%. The FOMC statement said the action would support “a timelier return” to the committee’s 2% goal.

No road map for traders weighing October

Asked whether the typical pattern of a sequence of hikes would follow, Warsh said, “I’m not in the forward guidance business,” adding that he would not “pre-judge any future decisions we make.” On reacting to individual releases such as a single CPI print, he said, “Trends matter. Data points are noisy,” calling data-point dependence “a dangerous preoccupation.”

Asked for his message to President Trump — whom the questioner described as having repeatedly called to cut interest rates rather than raise them — Warsh declined to discuss the president. Pressed separately by another reporter about investors who see the unanimous decision as a test of the Fed’s independence, he said independence is “a two-way street”: the Fed stays in its lane while trade and fiscal policymakers stay in theirs.