Chips lift the index — AMD +7.7%, Marvell +7.2%

The Nasdaq closed +1.5% on the 30th (local time) (S&P 500 +0.8%, Dow +0.3%), with semiconductors lifting the index

• Semiconductor strength pulled tech broadly higher (+2.8%) and led the index up (chip sector +4.3%)

• VIX -6.8% on recovering risk appetite — but advancers were just 45.4%, a narrow tape; defensives (REITs, staples, utilities) fell together

• WATCH: ADP (7/1), Employment Situation/NFP (7/2)

Chips surge across the board on a data-center demand call

SemiAnalysis pegged Nvidia's H2 data-center revenue at ~20% above consensus, reigniting the AI-chip demand cycle — the trigger for today's chip rally

• AMD +7.7%, Marvell +7.2%, Intel +6.0%, TSMC +4.9% surged together, with strength spreading across memory and compute chips

• The point is the "AI data-center investment cycle" — a sector-wide demand re-rating, not a single-name catalyst

• Watch: whether this demand outlook is confirmed in next quarter's guidance

The rally's shadow — concentration and a caution signal

The index rose, but the gains concentrated in chips and breadth actually narrowed

• Semiconductors hit a record 19.7% of the S&P 500 (4x since 2020)

• Citi warns selling flows are building in the Nasdaq and S&P

• A "narrow rally" — gains concentrated in a few names while defensives fell