Big Tech Floats the Market While Inflation Turns Up the Heat

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Market Report

As of May 13, 2026, 4:00 PM ET

For informational purposes only.

Summary

If you’re looking at upbeat index moves and grim inflation headlines and feeling a bit whiplashed, that’s exactly what today was: hot prices, hotter tech, and a market that looks stronger on the surface than underneath.

What actually happened

Big-picture numbers looked good:

S&P 500 up about 0.6%
Nasdaq up about 1.2%
Dow basically flat, small caps roughly unchanged

But under the hood, it was a very different story. Only about 4 in 10 stocks rose today, and the “average stock” (equal‑weight index) was slightly negative. New 20‑day lows outnumbered new highs by more than 2 to 1. So the green you see in the big indexes came from a relatively small group of heavyweights.

That group was, again, big tech and AI:

Tech sector gained about 1%
Communication services and healthcare also helped
Financials, utilities, and real estate — the rate‑sensitive, more defensive areas — were down around 1%

Individual tech names did the heavy lifting: Micron jumped nearly 5%, Nvidia, Tesla, Apple, Google, and Amazon were all solidly green.

The tension: hot inflation vs AI euphoria

This strength came on a day when inflation worries got louder, not quieter. Producer prices (what businesses pay) surged much more than expected in April, on top of yesterday’s hotter consumer inflation report. Commentators called it “a big number in all cases,” with energy costs starting to bleed into everything else.

Bond yields have pushed to new highs for the year, mortgage rates are back above 6.5%, and Fed officials like Susan Collins are openly saying they might need to raise rates again if inflation keeps broadening.

Yet volatility stayed modest (the VIX around the high‑teens and ending down on the day) and the Nasdaq hit fresh record territory, powered by AI and semiconductor momentum that has already driven tech higher on 24 of the last 30 days.

U.S. stocks rose again, but almost all the strength came from a familiar place: mega-cap tech and AI names, even as fresh inflation data fanned worries about higher-for-longer interest rates. The S&P 500 and Nasdaq were solidly green while the average stock was slightly down, with new lows far outpacing new highs and rate‑sensitive sectors like financials, utilities, and real estate in the red. Hot wholesale-price data and rising yields are now pressing against an AI-and-chip rally that has driven tech higher in 24 of the last 30 sessions, leaving the market both impressive and fragile at the same time. For investors, the key tension is whether AI euphoria can keep overpowering inflation and rate risks, and the next clues will come from retail sales, semiconductor momentum, and the behavior of bond yields and Fed speakers.

Why it matters and what to watch

For a portfolio, this setup means your experience now depends a lot on whether you own the AI/mega‑cap winners or the “everything else” that’s treading water or slipping.

The opportunity is clear: tech and AI are still in full momentum mode. The risk is also clear: leadership is narrow, inflation is heating, and rate‑sensitive sectors are already feeling it. If semiconductors — which are now tightly linked to the Nasdaq’s path — finally tire, the indexes could feel a pullback quickly.

Over the next few days, the tells to watch are:

Retail sales tomorrow: are consumers still spending with higher gas and mortgage costs?
Semis and AI stocks: do they keep making new highs or start to stall together?
Bond yields and Fed talk: do yields keep grinding higher, or does today’s scare calm down?

If breadth starts to improve — more stocks rising, fewer hitting new lows — this rally will look healthier. If not, it stays a great market for a few names, and a much tougher one for everyone else.