Federal Reserve officials’ promises to hold interest rates very low for a long time could present them with a future dilemma: what to do if their policies inflate asset bubbles.

Data-firm Palantir and Asana were the first two major companies to do a direct listing since Slack and Spotify.

The lawmakers are expected to call on Congress to blunt the power of technology companies, possibly through forced separation of online platforms.

Many investors attribute the strong performance to an economy that has steadily improved—though it remains far from where it was to start the year—as well as a powerful surge in big technology stocks.