U.S. stock futures traded mixed on Wednesday as investors digested data and prepared remarks by U.S. Federal Reserve Chair Janet Yellen for a speech to Congress later in the day.
In the remarks, the Fed chair said the central bank remains on track to raise rates this year if the economy evolves as expected. She said unemployment should decline but inflation remains below the Fed's target. Greece and China topped the list of uncertainties in Yellen's testimony.
U.S. June producer price data showed an increase of 0.4 percent in June, while the July Empire State Survey came in at 3.9, topping June's negative 2 read.
June industrial production data rose 0.3 percent, with capacity utilization at 78.4 percent, up a touch from May.
Treasury yields rose, with the 2-year yield rising to 0.67 percent and the 10-year briefly near 2.43 percent, up from 2.39 percent earlier.
The dollar strengthened, with the euro falling below $1.10.
Fed chief Yellen appears before the House Financial Services Committee at 10 a.m. ET to deliver her testimony on the economy.
Second-quarter earnings season, a key vote in Greece's parliament to pass legislation needed to secure a third bailout and renewed turbulence in China's stock market were also in focus.