April 25 (Reuters) - The tech-heavy Nasdaq index hit a fresh record at the open on Thursday after strong results from Facebook and Microsoft, while a slump in industrial conglomerate 3M weighed on the Dow and limited gains on the S&P.
The Nasdaq had hit a life-high of 8,139.551 on Wednesday.
The Dow Jones Industrial Average fell 170.68 points, or 0.64%, at the open to 26,426.37. The S&P 500 opened higher by 1.74 points, or 0.06%, at 2,928.99. The Nasdaq Composite gained 48.84 points, or 0.60%, to 8,150.85 at the opening bell. (Reporting by Amy Caren Daniel in Bengaluru Editing by Saumyadeb Chakrabarty)