London (CNN Business) 1. Tech correction: News that big tech companies face antitrust scrutiny from US lawmakers and regulators has pushed the Nasdaq into a correction.

Amazon AMZN Apple AAPL Facebook FB Google GOOG The US House Judiciary Committee said Monday it is launching a "top-to-bottom" antitrust investigation of the tech industry, includingand

The Justice Department and the Federal Trade Commission are reportedly taking steps to begin their own probes.

Already under pressure from global trade tensions, the Nasdaq dropped 1.6% on Monday. It's now 11% off highs at the beginning of May.

Google parent Alphabet closed down more than 6%, while Facebook fell 7.5%. Shares in both companies stabilized in premarket trading on Tuesday.