Rates broke from oil on Friday; Xi-Trump summit and August PCE lead next week

Methodology note: Weekend backstop report, generated Saturday September 19 after no primary routine ran. Closing levels reflect Friday September 18 — the week's final settlement. No U.S. equity session occurred Saturday; BTC prices are from Crypto.com live exchange data at time of writing.

Rates Broke From Oil on Friday; Xi-Trump Summit and August PCE Lead Next Week

The week closed with the S&P 500 roughly flat and the Nasdaq up 2.6%, after the Federal Reserve's first rate hike in three years split the market along duration lines and a late-week decoupling between oil and yields changed the question heading into Monday. The Fed raised its target range by 25 basis points to 3.75%-4.00% on Wednesday, unanimous, with 16 of 18 officials projecting at least one more increase this year. Friday delivered a signal that may matter more for the week ahead: WTI crude fell 1.6% to settle at $100.30 — its third straight decline as Saudi Arabia works to restore the East-West pipeline — while the ten-year yield rose six basis points to 5.006%. For a month the two had moved together. Friday was the first session this month they moved apart.

• The Federal Reserve raised the funds rate 25 basis points to 3.75%-4.00% on September 16, its first hike in three years, with 16 of 18 officials projecting at least one more increase this year and four projecting two — futures now price about 4.2% by December, meaning the market's consensus behind the delivered hike is two more moves before year-end
• The ten-year rose six basis points to 5.006% Friday while WTI fell 1.6% to $100.30 — the first session this month they moved in opposite directions — with the two-year up five basis points to 4.743% and the thirty-year four to 5.336%; a whole-curve parallel shift prices the Fed's rate path, not an oil-shock premium, which means the energy explanation for a 5% long end is being replaced by a policy one
• Saudi Arabia is working to restore about half of its East-West pipeline's 4-5 million barrel-a-day capacity within days and full capacity in roughly six weeks — WTI has fallen more than $5 from its September 14 high near $108 and settled at $100.30 Friday, 30 cents above the $100 level below which the energy shock would have left October CPI data
• The U.S. and China are in active discussion on about $30 billion in tariff cuts ahead of Xi Jinping's White House visit September 23-25, including China's 15% levy on U.S. LNG and expanded agricultural purchase commitments — LNG tariff relief at a moment when energy is the Fed's cited inflation channel would be a supply-side disinflationary event that arrives while the committee is still deciding whether to hike again
• About $7 trillion of U.S. options notional expired Friday in the second-largest quarterly triple witching on record, with roughly 60% clearing at the open — the positioning that has been absorbing directional moves is now gone, and the VIX's Friday reading of 14.81 was measured while it was still in place, making it a poor baseline for Monday's session without it
• The SEC's five-year conditional Innovation Exemption for tokenized stock venues cleared Thursday, allowing qualifying platforms to trade tokenized U.S.-listed stocks on blockchain without exchange registration — Coinbase closed 11.53% near $194, and bitcoin reclaimed $80,000 and is trading at $81,298 Saturday in a tight range on Crypto.com exchange data, up from roughly $75,000 earlier in the week

Week Closing Levels — Friday September 18

Why the Week Moved the Way It Did

The Fed delivered and guided for more. Wednesday's 25-basis-point hike to 3.75%-4.00% was the first in three years, but the rate move itself was priced near-certainty before the session. What the market spent Thursday and Friday pricing was the dot plot: 16 of 18 officials projected at least one more increase this year and four projected two, with the median funds rate projection moving to approximately 4.25% by year-end. Futures markets now price about 4.2% by December, which implies two more hikes behind the one already delivered.

Oil and yields decoupled Friday for the first time this month. From the September 10 pipeline attack through Wednesday, the long end moved with the barrel — the attack lifted both, Aramco's restoration pulled both lower. Friday broke that. WTI fell 1.6% to $100.30 while the ten-year rose six basis points to 5.006% and the two-year rose five basis points to 4.743%. A whole-curve parallel shift that leads from the front end is the signature of a market pricing the funds rate, not a supply-shock premium deflating out of the long end. One session after a record expiry is a narrow base for a firm conclusion, but the direction of causality matters: if the curve continues to hold above 5% as crude falls further, the energy explanation for 5% rates has been replaced by a policy one.

The Nasdaq-Dow split was the equity story. The Nasdaq gained 2.6% for the week while the Dow fell 1.7%. Large-cap growth held on the strength of Mag 7 names; rate-sensitive value, REITs, and small-caps lagged throughout. Quantum computing names fell 5%-8% Friday with no company-specific news — long-duration equities repricing the rate path. The S&P 500 ended the week roughly flat, its second consecutive weekly decline, sitting 150 points above the 7,500 support level.

The triple witching removed the week's calm. About $7 trillion of U.S. options notional expired Friday in the second-largest quarterly event on record, with roughly 60% clearing at the open. The VIX settled at 14.81 — but that reading was taken with the buffer still in place. Quarterly expiries are scheduled and widely modelled; the last several passed without a regime change. But the positioning that absorbed directional moves is now gone, and Monday's reading will be the first without it.

Volkswagen warned that the tariff-and-China-demand channel is already costing. The company cut its 2026 margin guidance to at most 1% from 4.0%-5.5% on EUR 10 billion of one-off charges, roughly EUR 6 billion a Porsche impairment, citing U.S. tariffs directly and collapsing Chinese demand for foreign luxury brands. The DAX fell 1.65% and European indices roughly 1.5%. This matters for the Xi-Trump summit context: the company named the exact channel the summit could address, days before Xi arrives.

Gold was the session's dissenting read. Spot gold rose 1.00% to $4,384.78 and silver 2.01% on a day nominal yields rose across the entire curve. Metals rising alongside rising yields is consistent with the move being priced as inflation compensation rather than a higher real rate — the one data point from Friday that argues against a clean policy-repricing read, and the one that would remain relevant if the yield rise eventually moderates.

The Week Ahead — Three Converging Catalysts

The Xi-Trump summit is the highest-uncertainty event. The U.S. and China are in active negotiation on about $30 billion in tariff cuts: China's 15% levy on U.S. LNG and expanded agricultural purchase commitments are both on the table, alongside manufacturing inputs. The May Beijing summit established the US-China Board of Trade and Board of Investment as the governance frame; the September visit is expected to deliver specific terms. A confirmed LNG tariff cut changes the energy import-cost calculus for U.S. buyers at the moment energy is the Fed's stated inflation concern — that is a disinflationary input arriving alongside a hawkish central bank. A summit producing only a joint statement or a framework-extension communiqué leaves the Volkswagen channel (U.S. tariffs destroying foreign-luxury demand in China) intact and removes the tariff-relief factor from the November rate calculus.

The Flash PMIs are the week's first hard data point. S&P Global's preliminary September readings for Manufacturing and Services land Tuesday at 9:45 a.m. The ISM Services report two weeks ago printed 55.4%, with business activity at 61.7% and new orders at 60.9% — expansion on top of expansion. The employment index at 47.8% was in contraction, saying the economy is growing without hiring more workers. Flash PMIs will give a preliminary September read on whether that divergence is continuing or closing, and whether the Services price component has moved with the $100 crude settle.

August PCE on Friday is the data anchor. It is the last major reading before the November meeting. August core CPI ran 0.3% against a 0.2% estimate, with shelter — a third of core CPI — accelerating to 0.3% from 0.1%. PCE weights shelter more lightly than CPI, so the same underlying data could produce a PCE print of 0.2% even where CPI ran 0.3%. A PCE core at or under 0.2% with the ten-year retreating from 5% supports the view that one hike was sufficient and November is a hold. A reading at or above 0.3% puts the second hike squarely in the November conversation and tests the 5.016% intra-week high on the ten-year.

What to Watch

Whether the oil-yield decoupling holds through the week. The ten-year at 5.006% against WTI at $100.30 is the starting position. If WTI continues lower toward $97-98 as Aramco's restoration progresses, and the ten-year holds above 5.016% — Wednesday's intra-week high — the driver shift from energy to Fed policy is confirmed. If the ten-year retreats back toward Thursday's 4.949% as crude falls, Friday's decoupling was the record expiry positioning talking rather than a fundamental change.

The DXY at 100.3 with a 0.36-point buffer. The dollar gained about 1.3% on the week after the Fed hike and hawkish dot plot. It is 0.06 points below the 100.36 regime threshold. A summit week that delivers tariff announcements without moving the Fed's rate path could pull the DXY lower; a hot PCE without a diplomatic offset could push it through. The indicator's buffer is the smallest of the seven tracked and has the most paths to breach.

The first two post-expiry sessions. About $7 trillion of options notional rolled off Friday. Monday and Tuesday are the first sessions without the buffer. The S&P 500's 7,500 support level is 150 points below. The question is not whether an expiry-related dip occurs — it is whether any dip finds buyers at levels where the positioning had previously provided the bid.

The University of Michigan final sentiment reading Friday. The preliminary September reading came in at 47.8, the second-lowest since 1952, with year-ahead inflation expectations at 4.6% — a six-tenths jump from 4.0% in August, measured during a period of $100 crude and record diesel prices. Revisions have been large this year. A final reading that holds at or above 4.6% makes the expectations jump structural and changes the November meeting's calculus; a revision back toward 4.2% makes it an artifact of the oil spike rather than an underlying shift.