Sentence 1: Shortly after the opening bell, the Dow Jones Industrial Average was up 11.13 to 9,228.48, while the S&P 500 index gained 1.74 to 982.33.
Sentence 2: After a weak start, the Dow Jones Industrial Average ended the day up 26.26 to 9,217.35, while the S&P 500 index rose 3 to 980.59.
Similarity: 0.32