Amplitude is trading at $18.00, 4.71% up in pre-market on November 5, after better-than-expected third-quarter results and a higher full-year revenue outlook. - Q3 revenue was $110.6 million, up 25% year over year and above the $107.0 million consensus; results were released November 4. - Full-year revenue outlook was raised to $415.8–$418.2 million. - The earnings call highlighted enterprise customer growth and record non-GAAP operating margin; software-sector strength may also support shares.