Magnite is trading at $25.00 (+9.70%) after Q3 results and higher full-year guidance supported the after-hours gain. - Q3 revenue was $204.2 million, above the $190.16 million estimate; CTV grew 39%. - Magnite raised full-year guidance for revenue growth, EBITDA margins, and free cash flow. - The company had scheduled its quarterly results for release after the November 4 market close.