The U.S. stock market opened tentatively higher on Thursday, with the main benchmark trading in record territory for the second straight day after ECB president Mario Draghi reiterated the bank's commitment to expanding the bank's balance sheet. Investors view that monetary stimulus would help reignite stalling economic growth in the eurozone. Better-than-expected jobless claims data as well as productivity report aided sentiment. The S&P 500 opened a point higher at 2,024.05. The Dow Jones Industrial Average rose 30 points, or 0.2%, to 17,515.87. The Nasdaq Composite began the day up 2 points at 4,622.98.
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