Tech earnings guidance cuts accelerating - AI capex reality

Seeing a pattern emerge across tech earnings - companies beating on revenue but slashing forward guidance while AI capex keeps climbing. Makes me wonder if we're hitting the point where AI spending becomes a margin headwind rather than a growth story.

The AI capex cycle is starting to look like the fiber buildout in 2000 - massive investment chasing theoretical demand that may not materialize for years. When you're spending $50B on compute while guidance gets slashed, that's a classic capital misallocation red flag that usually ends badly for margins.

The way I'm seeing it in my tech holdings - MSFT and GOOGL are spending like drunken sailors on AI infrastructure while their core business guidance keeps getting trimmed. When capex is growing 40% while forward EPS estimates are falling, that's a classic margin compression setup that usually gets punished hard.

The capex-to-revenue ratio across mega-cap tech is hitting levels we haven't seen since the dot-com buildout, but this time it's concentrated in a handful of players with actual cash flows. My base case is we get 2-3 quarters of margin compression before AI monetization kicks in, but the market's pricing in immediate ROI that just isn't there yet.

The thing that's bothering me is when I dig into the AI capex numbers - these companies are essentially building capacity for demand that doesn't exist yet. My NVDA position is getting crushed because even they're warning about lumpy enterprise adoption while hyperscalers keep ordering chips they can't monetize.