Banks sold the hike; optics bought the AI chain

What happened

The FOMC raised the federal funds target by 25 basis points to 3.75–4.00%, unanimously. Chair Kevin Warsh framed inflation as still too high and too persistent; the dots lean toward another hike this year. Cash closed soft: Dow 51,461.90 (−1.21%), S&P 500 7,551.81 (−0.45%), Nasdaq Composite roughly flat (−0.01%). Banks had their worst day since February — KBE about −2%, with Goldman Sachs, Wells Fargo, Bank of America, and Citigroup each near −3%. Overnight US equity futures tried a rebound of a few tenths of a percent into the Asia handoff.

What it means

Higher-for-longer pressures financials through net interest and loan-growth risk if the cycle extends. Utilities, housing, and discretionary stay under yield stress. Energy producers and refiners can benefit selectively if oil stays sticky — but Warsh also framed part of the inflation problem as an energy shock, so that path is not one-way. Index-wise, the Dow’s bank-heavy drag versus a flat Nasdaq is the sector story, not a broad risk-on reset.

Chart and trend facts

Wednesday’s closes are the verified tape: Dow −1.21%, S&P −0.45%, Nasdaq ~flat, KBE ~−2%, megabanks ~−3%. The 10-year stayed on the 5% handle. Thursday morning futures strength is a digestion bounce after the presser, not a new regime.

What happened

Semiconductors diverged while banks sold. The Philadelphia Semiconductor Index rose 0.63% Wednesday. Optical and data-center interconnect names led market wraps — Lumentum about +9.6%, Coherent about +6.9%, Astera Labs about +6.6%. ON Semiconductor fell about 9%, a clear counterexample inside the same chain. Separately, Nvidia and Google launched an AI Energy Management Alliance aimed at grid flexibility and faster data-center interconnection — shifting attention toward power partners, not only GPUs.

What it means

The AI stack is bifurcating. Optical interconnect and data-center power flexibility are the near-term supply-chain beneficiaries if grid bottlenecks stay binding. Broad GPU and memory hardware is not the only tape that matters after a hawkish Fed day. Dispersion inside semis — Coherent up, ON down hard — means sector labels alone are a poor proxy for who actually cleared the session.

Chart and trend facts

Featured · COHR · Wed session

Name: Coherent Corp. (COHR)
Wed close: $289.93
Wed change: +6.92%
Role: optical / data-center interconnect

Price action and sector role only — no weekly flip print is available for COHR here. Peers cited in wraps: Lumentum ~+9.6%, Astera Labs ~+6.6%; ON Semiconductor ~−9.0% as the chain’s dispersion check.