Modern trading desk with rising stock charts overlooking a futuristic city, symbolizing AI-driven tech stock upgrades. Key Points Snowflake and CrowdStrike rode 2025’s AI-driven software demand wave, but 2026 upside depends on margins and recurring-revenue durability. Alphabet drew the most upgrades as investors rewarded AI improvements in Search, YouTube, and Cloud, even as near-term upside looked tighter. Tech and Communication Services led 2025 sector performance, helping concentrate upgrades in a h ...