Feb 20 (Reuters) - Wall Street's main indexes opened

lower on Thursday as investors avoided risky bets after another

bout of tariff threats from President Donald Trump, while

heavyweight retailer Walmart ( WMT ) plunged on a downbeat fiscal 2026

sales forecast.

The Dow Jones Industrial Average fell 66.5 points, or

0.15%, at the open to 44,561.11. The S&P 500 fell 9.6

points, or 0.16%, at the open to 6,134.5​, while the Nasdaq

Composite dropped 27.1 points, or 0.13%, to 20,029.185

at the opening bell.

(Reporting by Shashwat Chauhan in Bengaluru; Editing by

Shinjini Ganguli)