Several publicly traded companies experienced significant stock price movements during after-hours and premarket trading sessions, according to market data.

Broadcom was among the companies that saw notable trading activity both after regular market hours and in premarket trading. The semiconductor and software company's shares moved significantly during these extended trading periods.

StubHub, the online ticket marketplace, also registered substantial price movements in both after-hours and premarket sessions. The company's stock activity drew attention from traders monitoring extended-hours movements.

Other companies that experienced significant trading activity included Okta during after-hours trading and BJ's Wholesale Club and Trade Desk during premarket hours. These movements occurred outside of regular trading hours when volume is typically lower and price swings can be more pronounced.

Extended-hours trading, which includes both after-hours and premarket sessions, often sees increased volatility due to lower trading volumes and can be influenced by earnings reports, news announcements, or other corporate developments released outside of regular market hours.