Microsoft's Upside Hinges on Delivering Existing Orders

Microsoft's stock has outperformed the market over the past three months, but its upside depends less on new demand and more on delivering existing orders. The company's commercial remaining performance obligation reached $678 billion in fiscal Q4 2026, which is roughly two years' worth of sales.

The order book converts slowly, with about 30% expected within the next 12 months. However, management says the entire sequential increase came from customers outside frontier model companies. One indicator of these buyers is Microsoft 365 Copilot, which has now surpassed 30 million paid seats, up from over 20 million in fiscal Q3 2026.

Microsoft's constraint is not demand, but rather available capacity, which limits revenue growth. The company added 31 data centers across five continents in fiscal Q4 2026 and cut dock-to-live times for new GPUs by nearly half. Azure revenue grew 43% as reported in fiscal Q4 2026 against 40% in the previous quarter.

The key to a bull case is whether the company can maintain its current buildout pace without sacrificing profitability. If Microsoft's operating margins remain above 46%, it could be a sign that the capacity investments are paying off. However, if the margin line drops below this point, it may indicate that the company is buying capacity at a worse price than expected.