XYZ100 Rebounds 1.83% as Iran Stands Down and SCOTUS Shields the Fed

The Macro Bid

Two headlines hit before and into the cash open, and neither had anything to do with chips. First, the US and Iran agreed to halt the tit-for-tat strikes that broke out over the weekend near the Strait of Hormuz, with Trump announcing the two sides will meet in Doha on Tuesday for renewed talks. Oil, which had spiked on the conflict, pared its gains — Brent up 1.3% to $73 and WTI up 1.4% above $70 — pulling the supply-shock premium back out of the tape.

Second, and arguably the bigger tell for a rate-sensitive growth index, the Supreme Court ruled 5-4 that Trump cannot fire Fed Governor Lisa Cook while her case plays out. Chief Justice Roberts wrote that accepting the government's position would 'transform the Federal Reserve's for-cause protection into at-will employment', and pointedly carved Fed independence out as an exception even as the court expanded presidential firing power at other agencies. For an index that lives and dies on the discount rate, a central bank kept insulated from White House pressure is precisely the kind of certainty that gets bid.

Clawing Back the Worst Week in a Year

This bounce only reads correctly against what it's bouncing off. The Nasdaq Composite fell about 4.6% last week, its worst weekly loss in more than a year, as the market openly relitigated whether hyperscaler AI capex will ever earn back its return. Chip names led the way down — a fifth straight losing session on Thursday, with Samsung and SK Hynix off 8% to 9% — pressured by reports that OpenAI might push its IPO into next year.

Monday was the re-pivot. The Nasdaq Composite rose 1.2% to 25,652.87, the S&P 500 added 0.7% and the Dow tagged a record near 52,132, with Nvidia, Intel, Microsoft, Amazon and Meta each up roughly 2% as traders rebuilt longs across both the hyperscaler and chip-producer sides of the AI trade.

The Perp Ran Hotter Than the Cash

Worth flagging: XYZ100's 1.83% two-hour move outran the cash Nasdaq-100's roughly 1% day. That's the usual perp behavior — a continuous, leverage-fueled market prices a sentiment shift faster and harder than the underlying index can, and a two-hour window catches the sharpest part of the reaction rather than the settled close. Expect some of that gap to bleed back as funding normalizes.

What this rebound did not do is resolve the actual debate. None of Monday's catalysts touched AI economics; they removed a geopolitical tail risk and a policy overhang, which is enough to retrace an oversold week but not to re-rate the trade. The Doha talks open Tuesday, and the AI-capex question that drove last week's drawdown is still sitting there unanswered. This is a relief bid on macro, not a verdict on the thing that actually pushed this index lower.