Investing.com -- Investors will be looking at key inflation data on Wednesday for fresh clues on the potential size of an expected September rate cut by the Federal Reserve. Markets look likely to remain volatile, while retail earnings will be watched for clues on the strength of consumer spending. Here's your look at what's happening in markets for the week ahead.

1. CPI data

July CPI data is expected to show that that inflation continued to edge closer to the Fed’s 2% annual target.

A reading that shows only modest cooling could allay fears that the Fed has sent the economy into a tailspin by leaving rates elevated for too long. But a weak report could bolster recession worries, potentially sparking fresh market volatility.

The economic calendar also includes retail sales numbers for July as well as the weekly report on initial jobless claims.

Investors will also get the chance to hear from several Fed officials including Atlanta Fed President Raphael Bostic, Philadelphia Fed President Patrick Harker and Chicago Fed President Austan Goolsbee.

Comments from a trio of Fed policymakers indicated on Thursday that they were more confident that inflation is cooling enough to cut rates.

2. Volatility risk

Investors seem likely to remain on edge in the coming week after last Monday’s stock market dive triggered by a combination of U.S. recession fears and the unwinding of a global yen-funded carry trade.

A bigger-than-expected drop in jobless claims on Thursday indicated that fears over the health of the labor market were overblown, helping markets recover most of their losses by Friday’s close.