U.S. stock markets were set to open in the green on Friday, finding strength ahead of inflation data despite a continued increase in oil prices in the face of U.S.-Iran tensions. The Dow fell more than 260 points Thursday amid market jitters over U.S. military buildup in the Middle East ahead of a possible strike on Iran. President Donald Trump said he would decide his next moves on Iran within 10 days, with The Wall Street Journal reporting he is considering a limited military strike.