Duration Dashboard – Fed Rate Decision September 2026 Flattens the Curve

Weekend dates reflect the prior Friday close (September 11 and September 18). The 5-year, 10-year and 30-year percentiles round to 100 but are shown as 99th because each Friday close sits below its five-year closing high: 4.96% for the 5-year (October 19, 2023), 5.02% for the 10-year (September 16, 2026) and 5.37% for the 30-year (September 15, 2026).

The week divided into three phases. Into the meeting, yields rose across the curve: the 10-year closed at 5.00% on Tuesday, its first close at or above 5% in the five-year sample, and reached a five-year closing high of 5.02% on Wednesday after the decision. Thursday brought a broad rally, with the 10-year down 9 basis points to 4.93% and the 30-year down 8 basis points to 5.29%, as crude prices eased and buyers returned at higher yield levels. Friday reversed most of that move, led again by the front end, after Bloomberg reported that traders were adding to expectations for further tightening. The 10-year closed the week at 5.00%, fractionally below the 5% mark on an unrounded basis.

The pattern extends the one described in our September 13 report on August CPI and the bear flattener, with one difference: last week all four benchmark tenors rose, while this week the 30-year declined. A policy rate that is moving higher pulls short maturities up mechanically. At the long end, a firmer policy stance works in the opposite direction by lowering the inflation compensation investors require. That interpretation is consistent with the curve response to Chair Warsh's Jackson Hole remarks, covered in our August 30 report.

Credit Pulse

Credit markets absorbed the Fed rate decision September 2026 with limited movement. High yield spreads widened 8 basis points to 273, moving from the 17th to the 23rd percentile of their five-year range, with an intraweek peak of 278 on Tuesday. Investment grade spreads narrowed 2 basis points to 78 after touching 82 the same day. The divergence widened the high yield–investment grade differential to 195 basis points from 185, a modest decompression that indicates investors differentiated by quality rather than reducing credit exposure broadly. Equity volatility followed a similar path: the VIX rose to 17.71 on the day of the decision, when the Dow Jones Industrial Average declined 631 points, then closed the week at 14.81, the 21st percentile.

Private Credit Stress Monitor

Fitch Ratings reported on Monday that its trailing 12-month US private credit default rate rose to a record 6.3% in August from 6.1% in July, across a universe of roughly 1,300 borrowers. August produced 14 default events, up from three in July and the most in the past year. Stress is concentrated by size and sector: borrowers with less than $25 million of EBITDA carried a 12.0% default rate, and healthcare providers and industrial and manufacturing borrowers each stood at 9.9%, while software was lowest at 0.6%. Fitch attributed the rise to uncertainty over rates and inflation limiting exit liquidity for lenders. Most private credit is floating rate, so a higher policy rate raises interest costs for these borrowers directly. Public market spreads at the 23rd and 29th percentiles do not reflect that pressure.

Federal Reserve Policy Outlook – After the Fed Rate Decision September 2026

The Committee voted 12-0 on September 16 to raise the target range to 3.75%-4.00%. Futures had priced roughly a 93% probability of the move, so the decision itself carried little new information. The unanimity did: at the July meeting the Committee held rates by a 9-3 vote, with three members preferring a hike. Chair Warsh said at the press conference that inflation has been "too high ... for too long" and that the Committee lacked confidence that underlying inflation was returning to target at sufficient speed.

The projections were the more consequential release. Sixteen of eighteen participants expect at least one additional hike in 2026; twelve project one and four project two. The median path holds the policy rate at 4.1% through 2027 and eases to 3.9% in 2028. When we covered the June 2026 FOMC meeting, the median 2026 projection had just risen to 3.8% and nine participants projected a hike by year-end. Three months later the hike has occurred and the median sits 30 basis points higher. Following the decision, the President publicly called for materially lower rates; Chair Warsh declined to address questions on the subject.

FOMC Projections – June vs. September 2026

The revisions point in one direction: stronger growth, lower unemployment, higher inflation and a higher policy path. The Committee still projects PCE inflation at 2.3% in 2027, unchanged from June, which implies it views the higher rate path as sufficient to keep the disinflation timeline intact. The Chair does not submit a projection, so the dot plot reflects eighteen participants. Two meetings remain in 2026: October 27-28 and December 8-9.

Week Ahead: Flash PMIs, Coupon Supply and Fed Speakers

• Fed Speakers (from September 21): The first remarks since the Fed rate decision September 2026 begin with Chicago Fed President Goolsbee on Monday. Remarks will be read for how firmly participants hold the projection of one more hike this year.
• Treasury Auctions (September 22-24): $78 billion of 2-year notes Tuesday, $70 billion of 5-year notes Wednesday and $44 billion of 7-year notes Thursday. These are the first coupon sales since the hike and follow the soft 20-year result.
• S&P Global Flash PMIs (September 23): The first September read on activity and on input and output prices.
• Jobless Claims and New Home Sales (September 24): Claims follow the 196,000 print; August new home sales add to the housing picture.
• Durable Goods and Michigan Sentiment, Final (September 25): The preliminary September sentiment index was 47.8, with one-year inflation expectations at 4.6%. August PCE inflation and the third estimate of second-quarter GDP follow on September 30.

US Economic Positioning and Global Context

With the Fed rate decision September 2026, the United States is tightening policy alongside Japan rather than in isolation. The Bank of Japan raised its policy rate by 25 basis points to 1.25% on Friday, and the yen weakened following the decision as the accompanying guidance was read as mixed. Higher Japanese yields matter for Treasuries because Japanese investors are among the largest foreign holders of US duration, and the record-low indirect share at the 20-year auction keeps foreign demand in focus.

Policy rates, term premium and the dollar: A higher US policy rate supports the dollar through the front end, while 10-year and 30-year yields at the 99th percentile of their five-year ranges indicate that investors continue to require elevated compensation for holding duration. With crude near $100 and the Committee projecting PCE inflation of 3.7% this year, the balance of risks for long-end yields still depends on energy and on supply. For credit, the comparison that matters is between all-in yields, which are attractive by recent historical standards, and spreads, which offer limited compensation for a period of tighter policy.