Standard 8.12 Newsletter — CPI Lands, But the Rates Market Is Still Pricing No September Cut
The S&P 500 closed at 7,748.50, up 0.26%; the Nasdaq closed at 26,588.49, up 0.54%; the Dow closed at 53,770.27, down 0.04% — two up, one down. The VIX fell to 14.55, down 4.78%. Per Barron’s, the S&P moved back near record territory, with the day’s CPI report as the trigger.
But it was a narrow rally. Of the 11 sectors, 8 rose and 3 fell, with tech (XLK) up 1.49% standing alone at the top; the second-best sector, utilities, gained only 0.48%. The three decliners were communication services (XLC), down 1.39%, materials (XLB), down 1.24%, and consumer discretionary (XLY), down 1.13%. The index was lifted by a single sector — tech — while the other seven advancing sectors all posted gains bunched between 0.10% and 0.48%. On the losers list, National Vision fell 11.56% to close at $19.51, and Liquidia fell 10.52% to close at $78.79 — neither of the two double-digit decliners was in tech. Intel and Nokia were the day’s top two gainers.
What’s really worth watching is that stocks and the rates market reacted in opposite directions to the same CPI print.
Polymarket’s distribution for the September FOMC meeting looks like this: hold steady 66%, hike 25bps 32%, cut 25bps 1%, cut 50bps or more 1%. In other words, on the same day equity investors were paying up for “tame inflation,” the rates market compressed the probability of a cut down to statistical noise — and instead gave a full third of the probability mass to a hike. The 10-year Treasury yield sits at 4.68%.
Line up a few prices side by side and the divergence isn’t hard to understand. WTI closed at $82.65, down 0.66%, but on Polymarket, the question “will Strait of Hormuz transit return to normal by August 31” is priced at 97% No. Bettors are nearly unanimous that this won’t be resolved within a month. Japan’s July domestic corporate goods price index rose 7.2% year-over-year — below the 7.4% forecast, but still a notch higher than June’s 7.1%. Energy uncertainty and sticky global producer prices — this is not a rate-cutting environment. What stocks rallied on today wasn’t easing expectations. It was AI.
The AI storyline also produced two pieces of news that landed in the same place today. David Bahnsen issued a circular-credit warning about Nvidia’s $500 billion AI financing platform, while CoreWeave added a new risk disclosure noting that switching away from Nvidia chips to alternative chips would be difficult. One is about money circling within a closed system; the other is about the difficulty of switching hardware — both point to the same underlying dependency. MarketWatch’s headline put it bluntly: chip stocks are nearing a bull market, and some analysts are getting nervous. None of these warnings affected anyone’s bid as the tech sector rallied 1.49% today.
ARK’s rebalancing today was also about subtraction. ARKK opened a new position in Rocket Lab of 200,987 shares, a 0.26% weighting, while cutting Deere from 34,964 shares to 4,950 shares — an 85.8% reduction — and cutting Snowflake from 1,949 shares to 94 shares, a 95.2% reduction. The Snowflake position is essentially wiped out; the remaining 94 shares don’t even reach a 0.01% weighting.
So what actually happened today: an inflation print the market read as tame pushed 8 of 11 sectors higher, but nearly all of that gain was piled into a single sector — tech — while the people pricing interest rates didn’t adjust their expectations at all. These two readings cannot coexist for long.
There are three conditions that would change this picture. First, if the September hike probability on Polymarket keeps climbing past 32% while the 10-year yield breaks above 4.8%, that would mean the rates market won this divergence — and the most richly valued tech names would be first to pay the price. Second, if the Strait of Hormuz transit probability reverses and oil falls back below $75, the energy-driven pressure on inflation would ease, giving cut pricing a reason to reappear. Third, if sectors beyond XLK start joining the rally — a second, third sector catching up — market breadth would return, and today’s “one sector carrying the whole tape” structure would truly be behind us. Until these three things happen, the narrowness of the rally is the only thing worth remembering.