Jan 18 (Reuters) - U.S. stock indexes opened lower on Tuesday as technology stocks were slammed by rising Treasury yields, while Goldman Sachs led declines among big banks after missing profit expectations.

The Dow Jones Industrial Average fell 250.05 points, or 0.70%, at the open to 35,661.76. The S&P 500 opened lower by 30.61 points, or 0.66%, at 4,632.24, while the Nasdaq Composite dropped 211.92 points, or 1.42%, to 14,681.83 at the opening bell. (Reporting by Bansari Mayur Kamdar in Bengaluru; Editing by Maju Samuel)