US equity markets saw significant price action continue into extended trading on Wednesday, with Apple, Amazon, Rivian, and Reddit among the most active names.

The volatility underscores a period of heightened investor engagement as traders digest a wave of corporate developments and earnings reports.

Amazon also posted substantial moves in after-hours trading, building on a strong regular session where shares surged nearly 9% after the e-commerce and cloud computing giant reported earnings that beat expectations.

Apple shares were particularly prominent in the session, following the company's recent milestone of regaining its position as the world's most valuable publicly traded company.

The tech giant overtook Nvidia earlier in the week, ending a roughly 12-month period during which the chipmaker held the crown.

This shift in market leadership has drawn renewed attention to Apple's valuation and growth trajectory.

Amazon also posted substantial moves in after-hours trading, building on a strong regular session where shares surged nearly 9% after the e-commerce and cloud computing giant reported earnings that beat expectations.