Tech shares slump worldwide as investors weigh AI spending and possible rate hikes. The sector, once the sole area seeing institutional buying since the Iran war, now faces volatility and profit‑taking. Market watchers question whether the decline is a lasting shift or a temporary blip.

Alphabet leads the charge in AI outlays, driving concerns over capital intensity and debt. Large hyperscalers pour billions into research and infrastructure, tightening margins for peers. Investors fear that continued spending could curb growth unless rates remain subdued.

Micron Technology stands out, rallying over 300% this year. Its stock has become the Philadelphia Semiconductor Index’s biggest performer. Analysts eye Wednesday’s quarterly report for clues on whether the surge reflects sustainable demand or a speculative bubble.

SpaceX received a Baa1 rating, matching Nvidia’s historic level despite limited public data. Bond markets are poised to fund roughly $20 billion for the company, reflecting optimism about reusable rockets and satellite networks. The move signals confidence in SpaceX’s long‑term revenue potential, though capital intensity remains high.

The intertwined risks of rapid AI investment and tightening monetary policy weigh heavily on tech valuation. Institutional traders now prefer defensive plays, draining liquidity from growth names. This shift could accelerate a broader market rebalancing, forcing tech firms to justify higher price‑to‑earnings ratios with clearer earnings trajectories.