Microsoft shares are trading sharply higher on October 9, 2026, up roughly 2.5% intraday near $535–$536 after opening around $528, supported by fresh AI momentum including Satya Nadella’s announcement of a new decision-making model and continued strength in Azure demand. The stock is approaching its 52-week high of $553.72 while the company nears a $4 trillion market capitalization, reflecting robust commercial backlog growth and analyst upgrades ahead of the October 28 earnings release. Traders are monitoring broader tech sentiment, data-center spending trends, and any last-minute macro or regulatory headlines that could influence the session’s close.