Core CPI Preview: Do Stocks Care if Inflation is Higher Than Expected?
Oct 11, 2023
U.S. inflation is expected to have cooled in September. The headline consumer price index (CPI) is seen rising 3.6% year-on-year, a climbdown from 3.7% recorded in August and a break of a two-month streak of accelerating price growth.
The core CPI measure excluding volatile food and energy prices is expected to inch down for a 13th consecutive month. This measure captures pricing trends where Fed policy has some agency for direct impact, so the central bank is probably focused there. Seesawing crude oil prices explain much of the recent disparity between it and broader CPI.
Another downtick is likely to be broadly welcomed by investors. However, its market-moving potential will probably depend on what the numbers mean for the arrival of a much-hoped-for rate cut cycle as global economic growth grinds down to near-standstill, threatening recession.
This is where things get trickier.
At this stage, the service sector is the main contributor to inflation. This is primarily underpinned by the cost of housing, where the Fed has little agency to drive near-term outcomes. Its own rate hikes have created illiquidity because market mortgage rates exceed what owners have locked in by close to 400 basis points (bps) on average. That has discouraged selling, drawing down inventories and keeping prices up.
That leaves the labor market. Employment costs have been stickier than overall inflation as labor shortages underpin wages. The U.S. central bank is aiming for higher rates to cool economic activity, reduce labor demand, and trigger a wave of wage agreement resets (i.e., layoffs). It hopes to dial in just enough pain for this process to pass without too much damage, for a so-called “soft landing”.
How long the Fed will wait with rates at their cycle highs before it feels confident enough for a reversal has become the main object of speculation for financial markets. The first 25-basis-point (bps) cut is expected in June 2024. Another has been penciled in by November and a third by December, for a cumulative 75 bps in easing.
That might be a bit too optimistic.
September’s U.S. jobs data printed much stronger than what was penciled into baseline forecasts, as expected. Surveys of purchasing managers by S&P Global and the Institute of Supply Management (ISM) showed brisk hiring and elevated service sector inflation in September. The former flagged the fastest price growth since July and the latter saw costs rising at a pace matching August’s four-month high.
Furthermore, wholesale inflation turned out to be higher than projected, and for ominous reasons. The producer price index (PPI) rose 2.2% year-on-year in September, sailing past analysts’ median forecast of 1.6% to record a five-month high. The rise was overwhelmingly driven by final “core” domestic demand in the service sector.
On balance, this suggests that—whatever happens with headline CPI thanks to the vagaries of oil markets—the part of inflation that is of greatest interest for the Fed may not endorse a dovish retreat. In fact, an upside surprise is a significant possibility.
Stocks may retreat while bond yields and the U.S. dollar rise in this scenario, but the degree of follow-through on any such move is likely to be critical. If markets shrug off an upside surprise as they did with nonfarm payrolls’ buoyant print last week, the case for bullish trend reversal in stock and bond markets will seem stronger.
Ilya Spivak, tastylive head of global macro, has 15 years of experience in trading strategy, and he specializes in identifying thematic moves in currencies, commodities, interest rates and equities. He hosts Macro Money and co-hosts Overtime, Monday-Thursday. @Ilyaspivak
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