Melius Upgrades Microsoft to Buy With $665 Target on AI Security Demand
Melius Research upgraded Microsoft Corporation to "Buy" from "Hold" on Oct. 5, 2026, with a $665 price objective. A price objective is an analyst's estimate for where the stock could trade, and Buy means the analyst expects it to outperform. Microsoft traded at $526 at 11:58 a.m. EDT that day, up 1.7% after the call, according to Yahoo Finance.
The call came from Ben Reitzes, Partner and Head of Technology Research at Melius, according to Melius Research and Yahoo Finance. Reitzes moved the rating from "Hold" to "Buy" and raised the price objective to $665, as reported by TipRanks and 24/7 Wall St..
The stated driver was enterprise demand for AI security and governance. Melius cited rising enterprise demand for AI security and governance solutions as the basis for the upgrade, according to TipRanks. The thesis links worries about deploying AI to extra spending on security.
The October upgrade followed a February downgrade. Melius had downgraded Microsoft stock to "Hold" from "Buy" with a price objective of $430, according to Yahoo Finance. The October $665 objective sits $235 above that February level. The rating path is now Buy to Hold to Buy inside eight months. Prior Melius commentary had been cautious on price action. Reitzes believed Microsoft shares had sold off unfairly, and MarketWatch described Microsoft as the most unloved Big Tech stock right now in its coverage of that view, according to MarketWatch. That September 2025 note provides context for the October upgrade. It does not change the current rating or objective.
The broader context here is how much of the call rests on contract length and bundling rather than a single quarter. A Hold to Buy move with a $665 objective against a $526 print implies roughly 26% upside to target. Upside is the gap between today's price and the target. For a mega-cap software name, that gap leaves little room if security and governance demand does not convert into paid adoption. The market reaction, a 1.7% lift, covers only a small part of that gap.
In my view, the tension is between AI fear as a buyer of security and AI fear as a weight on valuation. Security spending tied to governance, audit, access control and data posture tends to be steadier and less cyclical than experimental AI budgets. If that mix shift holds, it can support net revenue retention, or sales from existing customers, and contract length. If it proves to be cautious talk rather than committed spend, the upgrade depends more on multiple repair, or investors paying a higher valuation for the same earnings.
Looking at what this means for positioning, the February to October swing matters for how to read the target. A $430 Hold and a $665 Buy are not small refinements. They imply a different assumption about lasting growth and the multiple the business should command. The focus will be less on the 1.7% intraday move and more on whether forward estimates, or forecasts for future sales and profit, migrate toward the economics embedded in $665. Without that migration, the target works more as a sentiment marker than an earnings-anchored valuation.
