By Alistair Barr
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Author of the Tech Memo newsletter
Microsoft CEO Satya Nadella
Microsoft blinked a little in the AI capex race. Wall Street loved it.
Wall Street sent Big Tech a new message: AI spending alone isn't enough. Microsoft's restraint sparked a massive stock rally.
TL;DRAI
Microsoft held capex at $175B as rivals increased (Google +$15B, Amazon +$20B); stock surged 15% — best day in decades. Signals shift in AI capex calculus: Wall Street rewards discipline and ROI; efficiency and returns matter more than pure budget size.
650 words~3 min read
