How does the Nasdaq lose nearly 5% in a week - while the Dow rises, credit spreads barely move, and nobody sounds the alarm?

That is the question worth sitting with before we look at the numbers.

The Nasdaq lost nearly 5% last week. The Dow gained. Same market. Same five days. Same investors. That kind of split does not happen often. When it does, it usually means the market is working something out - not panicking, but repricing a specific idea.

Last week, that idea was AI. Or more precisely: the gap between what AI promises and what it has delivered so far.

Two events forced the reckoning. Alphabet lost two of its most senior AI researchers to rivals within 48 hours - a Nobel laureate to Anthropic, a Gemini co-lead to OpenAI. Then Bloomberg reported that OpenAI is weighing a delay of its IPO to 2027. Together, they sent chip stocks tumbling and reminded investors that confidence, not just capital, holds this rally together.

When does $725 billion in AI spending become $725 billion in earnings? Markets spent five days asking. They did not like the silence.

The stocks nobody was talking about just won

S&P 500 down nearly 2%, closing around 7,354. Nasdaq off 4.6%. But the Dow added 0.6% and the Russell 2000 gained 1% - a textbook rotation out of growth and into anything with real earnings today. Europe shrugged: the STOXX 600 barely moved. Asia did not - the Nikkei lost 3.5%, and Seoul's KOSPI bore the worst as memory and chip names took the full force of the repricing.

The bond market said: relax

US 10-year Treasury at 4.37%, down about seven basis points. German Bund at 2.92%, its lowest since March. Credit spreads held around 80 basis points. The bond market called this a tech story, not a crisis. So far, it was right.

Oil down, gold quiet - make that two paradoxes

Dollar firm. EUR/USD at 1.1390, USD/JPY at 161.80, sterling near 1.34. Then the week's second surprise: Brent crude fell more than 10% to around $72 - not because the world got safer, but because progress on a US-Iran deal pointed to more supply. Oil down, geopolitics still loud. And gold? Down 3% to around $4,040, a fourth straight weekly loss. When fear does not buy gold, it is repositioning, not panic.

The paradox of last week was not the selloff. It was what did not break: credit, the broader market, the narrative of a soft landing. The future blinked. Everything else held.

Is this the start of a genuine rotation - or a one-week correction before AI bounces back?