Wall Street enters Wednesday trading on edge, waiting for the Bureau of Labor Statistics to release the July Consumer Price Index at 8:30 a.m. Eastern, a report traders and the Federal Reserve alike are treating as a pivotal data point for where interest rates go next.

Economists polled ahead of the release expect headline CPI to rise just 0.1% month over month and 3.4% year over year, a slight cooldown from June's 3.5% annual pace, according to Kiplinger's preview of the report. Core CPI, which strips out volatile food and energy prices, is forecast to climb 0.32% on the month and 2.5% from a year earlier.

Markets Betting on a Tame Number

Prediction markets are leaning dovish. CNBC reported that traders see less than a 55% chance the year-over-year CPI reading comes in above 3.3%, a sign the market is positioning for inflation to keep easing. That expectation matters more than usual: the print lands just after a softer-than-expected July jobs report renewed speculation the Fed could deliver a rate cut as soon as September.

Stock futures were largely flat heading into the release, with Dow futures little changed, S&P 500 contracts up around 0.2%, and Nasdaq-100 futures up roughly 0.6%, per Yahoo Finance. That calm follows a rougher Tuesday session, when the Dow, S&P 500 and Nasdaq all slipped as an escalating standoff between the U.S. and Iran over the Strait of Hormuz rattled energy markets and pushed oil above $83 a barrel.

Individual stocks told their own story Tuesday. Telehealth company Hims & Hers Health tumbled almost 6% after rising expenses pushed it to a second-quarter net loss of 37 cents per share, while crypto miner Riot Platforms surged more than 12% in extended trading after reporting a 14% year-over-year jump in revenue and production of 1,587 bitcoin for the quarter — a sign investor appetite for growth stories hasn't disappeared even in a jittery market.

A LESS THAN 55% CHANCE JULY'S CPI READING COMES IN ABOVE 3.3% ON A 12-MONTH BASIS.

Away from inflation, Wednesday's data slate also includes a reading on small-business sentiment: the NFIB Small Business Optimism Index rose to 99.8 in the latest survey, with a net 20% of owners saying they plan to add jobs over the next few months — a modest sign of resilience even as owners navigate elevated borrowing costs and geopolitical uncertainty.

If the CPI print matches expectations, analysts say it would keep a September rate cut squarely on the table; a hotter-than-expected number could force traders to unwind those bets fast, adding volatility to what has otherwise been a fairly placid August for stocks.