AI Stocks Drive Market Rally as Inflation Fears Subside
The S&P 500 climbed 0.3% on Wednesday—its first gain since setting an all-time high last Friday—just shy of another record close, according to AP reporting.
Nathaniel Prescott, Lead Wealth Strategist & Solo Columnist·updated August 13, 2026

A handful of AI infrastructure names did the heavy lifting: Super Micro Computer jumped 19% after posting quarterly earnings 84% above analyst estimates, CoreWeave leaped 19.3% on better-than-expected revenue and a narrower loss, and Nvidia—the single largest force lifting the index—rose 3%. Underneath the headlines, a softer-than-expected July inflation print (3.4% year-over-year versus 3.5% in June) pulled Treasury yields lower and eased pressure on rate-sensitive sectors.
The AI earnings engine isn't stalling
We keep telling you: stop treating "AI stocks" as a single trade. Wednesday's action confirmed the dispersion is widening, not narrowing. CoreWeave's CEO told analysts demand is accelerating as enterprise adoption broadens, and the results—revenue ahead, loss milder—validated the claim. Super Micro's 84% EPS beat and forward guidance above consensus reinforced the same thesis on the hardware side. Nvidia didn't even report; it rode the read-through and added more index points than any other name.
This is asymmetric upside playing out in real time. The market is differentiating between companies that can monetize AI capex and those that just ride the narrative. You should be doing the same in your portfolio: size positions by demonstrated earnings power, not by thematic tag.
The inflation print and the Fed calculus
The July CPI landed at 3.4% year-over-year, down a tenth from June's 3.5%. That single basis point of deceleration moved markets more than the AI earnings did. The 10-year Treasury yield slipped to 4.68% from 4.70%—still elevated, still well above the 3.97% level we sat at before the Iran conflict sent oil and inflation expectations spiking, but the direction is what matters for positioning.
Traders responded by trimming bets on a September rate hike. CME data now puts the probability at roughly 40%, down from a coin flip the day before. That's a meaningful repricing in 24 hours. The Fed's internal split—several members arguing the committee should have already begun hiking—adds binary risk to your September planning. Watch the August CPI print and Fed-speak in the next three weeks.
The yield drag on long-duration assets hasn't disappeared. Homebuilders absorbed it Wednesday: D.R. Horton fell 3.3%, PulteGroup lost 2.5%. Mortgage rates remain near their highest level in a year. If you're overweight rate-sensitive small caps or REITs, this is not the moment to add.
What we're watching into September
Brent crude sits at $88.98, up a tenth of a percent—elevated but stable. We have one more major CPI print before the September meeting, a Jackson Hole window where Powell can reset expectations, and continued earnings from the AI cohort. The opportunity cost of sitting in cash improved slightly with the yield pullback, but the asymmetry still favors selective equity exposure over defensive positioning.
One footnote on where AI infrastructure meets the real economy: the same compute stack lifting Nvidia and CoreWeave is reshaping adjacent fields, from machine learning models that personalize clinical nutrition protocols to drug discovery pipelines. The investment thesis and the deployment story are converging. That's the asymmetric bet—not the hype, the wiring.