A 3.4% CPI, a flat PPI, and a bond market that barely blinked

July's inflation data landed about as cleanly as the disinflation case could ask: headline CPI rose 3.4% year over year, easing from June's 3.5% and matching forecasts, core slowed to 2.5%, and PPI came in flat against expectations for a modest rise ^[1][2][3][4]. The S&P 500 used it to set another all-time high, finishing the week at 7,786, up 0.36% ^[5][6][7].

The composition matters more than the headline. The 0.1% monthly CPI gain was driven mainly by shelter while energy costs fell ^[8]. That is the same energy complex where WTI crude rose 5.4% on the week to $82.40 a barrel and the S&P 500 energy sector gained 7.3%, the best of any sector ^[9][10]. A July print helped by falling energy and a market repricing energy higher in August are not the same fact, and only one of them is in the data.

Underneath, headline sits 0.9 points above core ^[11], which is the reverse of the arrangement that made 2023 comfortable. And producer prices are still running at 4.7% year over year, 1.3 points above consumer prices ^[3][12], with the flat monthly reading built on a decline in goods prices offsetting gains in services and construction ^[4]. Either producers absorb that spread in margin or they pass it along later. The print is clean; the pipeline is not.

The bond market's verdict was close to nothing. The ten-year yield fell 0.2 basis points to 4.696% ^[13], which is not the response of a market that just repriced the path of policy. The VIX dropped 4.4% to 14.25 ^[14]. Equity investors took the print as permission; rates investors took it as confirmation of what they already had.

The index moves conceal how wide the dispersion was. Information technology added just 0.2% for the week, a 7.1-point gap to energy ^[15][16], while inside that flat sector Sandisk rose 35%, Super Micro Computer 28%, Seagate 20% and Western Digital 17% ^[17]. On the other side, Coherent fell 14%, First Solar 10% and AppLovin 9%, with Tapestry down 21% as the worst S&P 500 performer ^[18][19]. The spread between the best and worst names in the index was 56 points in a week the index moved a third of a percent ^[20]. Earnings attention centered on Barrick Mining, Sea Limited, CoreWeave and Applied Materials ^[21]; the reports arrived, and the tape sorted AI infrastructure exposure into winners and casualties rather than rerating it as a bloc.

Breadth was better than the Dow suggested. The Russell 2000 rose 1.1% while the Dow fell 0.56% and the Nasdaq managed 0.14% ^[22][23][24]. Japan's index gained 4.7% to 68,714 ^[25]; Hong Kong fell 2.2% ^[26]. Gold added 0.7% to $4,432 an ounce, which is not a disinflation portfolio ^[27].

Watch three things. Whether shelter keeps carrying the monthly CPI number now that the energy offset has reversed in the spot market ^[8][9]. Whether the 1.3-point PPI-to-CPI gap closes through prices or through margins ^[12]. And whether the ten-year does anything at all on the next print; if the cleanest disinflation read in months is worth two-tenths of a basis point, the equity move is being paid for by multiple, not by rates ^[13].