KEY POINTS
  • Inflation is expected to be subdued in April, increasing by just 0.2%, but traders are watching for any divergence in Friday's PCE report.
  • Any dramatic move from that level could make investors either jump into Treasurys for safety or shun them.
  • The stock market could be affected by moves in the Treasury market, and that will determine how stocks finish May, with the S&P 500 already down 5.3% for the month.
Traders work on the floor of the New York Stock Exchange (NYSE) on August 24, 2015 in New York City. As the global economy continues to react from events in China, markets dropped significantly around the world on Monday.

Inflation data is a wild card for the markets Friday, as traders watch to see if the economy is trapped in a period of sluggish price increases.

The data to be reported Friday at 8:30 a.m. ET is April's personal consumption and expenditures, which includes the PCE deflator, an inflation reading tracked by the Federal Reserve. The inflation reading for the first quarter was revised lower to a surprisingly low 1% on the headline, from 1.2% in Thursday's revised first-quarter GDP report. Quarterly PCE inflation data has only been that low two other times in the past six years.