Chip stocks broke this week, but the S&P barely noticed. Today’s Market Pulse open take starts with a fracture that didn’t show up in the index — money left the semis, landed on Microsoft and defensives, and left the top-line whole. Micron closed the week down 10%, Alphabet lost 4.4% on a Gemini delay, and every long-duration AI-adjacent name we track was down double digits. And the S&P 500 finished the week up 0.7%. If the tape were breaking, the tape would tell you. This one is rotating.

What moved overnight

Chips did most of the damage. Nvidia -2.4%, TSMC -2.3% after its earnings guide, Micron -5.7%. MarketWatch ran a piece calling Micron “the most important stock in the market” — the stock the buy-side treats as the cleanest proxy for AI memory demand just gave back a month of gains in five sessions. Alphabet fell 4.4% on the Gemini 3.5 Pro delay report, opening the first visible crack in the hyperscaler-cadence story. Nebius (the Nvidia-backed cloud-AI play) dropped 14% in one session and 21% on the week. Bloom Energy — the fuel-cell name that spent a year as the AI-data-center power trade — lost 14% Thursday. Meanwhile Microsoft printed +1.4% and +4.6% for the week, energy soaked up flow off a 9.5% weekly move in WTI as the Strait of Hormuz stayed a headline, and the 30-year yield ticked to 5.10%. VIX moved up 6.8% to 16.73 — a bumpy week, not fear. See yesterday’s Movers for the full cap-tier breakdown.

Trending in markets right now

Two things are pulling most of the oxygen out of investor conversations this morning. The first is Micron — the “most important stock in the market” framing spread well past the finance press, and retail chatter is circling whether AI memory demand has actually peaked or whether the last two quarters were an inventory pull-in now unwinding. The second is Alphabet, where the Gemini 3.5 Pro delay is being read two ways: bulls call it a routine slip, bears call it the first admission from a hyperscaler that the model-generation cadence is slowing. Neither read is settled, and both matter more for Nvidia’s next print than they do for Alphabet’s. Google search interest is surging on “AI bubble” queries in a way it hasn’t in six months — a sentiment gauge worth tracking, not trading. And the high-beta space cohort (AST SpaceMobile down 17% Thursday, Rocket Lab down 12%) is a reminder that when the ropes tighten, the longest-duration names snap first. That’s cohort behaviour, not company news. Live-ticker view on /trending.

Three things to watch today

Netflix earnings after the bell. First big print outside the hyperscaler-chip axis. Consensus is looking for subscriber deceleration and margin resilience. A miss says the consumer side of tech is also cooling; a beat confirms the rotation trade has somewhere to land.

The 30-year yield at 5.10%. It sat at 5.07% a week ago and has been quietly grinding. Anything above 5.20% starts to matter for equity multiples again — the level to keep on the tape today.

Whether Micron finds a bid. A stock this closely watched either bounces Friday because it’s cleaned out, or extends because the tape confirms the memory-demand read is broken. Either outcome bleeds into every semis name for a week.

Bottom line

The story is rotation, not risk-off. Semis exhaled, Microsoft caught the bid, defensives held, energy did work — and the S&P still finished the week green. Under that surface the chip cohort spent five sessions giving up a month. The single number that resolves today’s question is Micron’s opening print: hold Thursday’s low and the week gets remembered as digestion; break it and the AI-memory narrative needs a new floor.