678 Billion Reasons to Invest in Microsoft Stock

Microsoft's Q4 FY2026 results revealed a $678 billion cloud backlog, the strongest signal yet that its AI infrastructure investments are translating into locked-in revenue. Azure revenue jumped 43% year-over-year, while total revenue climbed 18% to $90 billion and EPS rose 23%.

The company's AI monetization is accelerating. Microsoft 365 Copilot reached 30 million paid seats, with subscription additions more than doubling quarter-over-quarter. The rapid adoption suggests enterprises are moving past pilot programs into full-scale deployments.

Shares surged 15% immediately following the earnings release but remain down 2% year-to-date, leaving MSFT trading well below its recent highs despite the fundamental strength. The disconnect between the record backlog and current valuation creates a setup traders are eyeing closely.

The $678 billion backlog—spanning multi-year cloud commitments—provides visibility into 2027 and beyond, reducing execution risk as competitors scramble to match Azure's enterprise footprint.