Morgan Stanley sees conservative estimates for AI margin impact

Morgan Stanley’s analysts are projecting that companies adopting AI will see their EBIT margins improve by an average of 4.6% across 2025 and 2026. The catch: they don’t expect those gains to stick around much longer than that.

The numbers behind the forecast

The 4.6% EBIT margin improvement represents the average expected lift for companies that have meaningfully integrated AI into their operations. Once the initial efficiency gains are captured, the benefits appear to flatten. Analysts at the firm do not anticipate sustained margin expansion beyond the 2025-2026 window.

Morgan Stanley strategist Michael Wilson’s team forecasts roughly 100 basis points of net-margin expansion through 2027 for certain adopters, though he emphasizes that these gains will be heavily sector-dependent. Companies where AI is core to the business model will likely fare better than those bolting it onto existing processes as a cost-cutting exercise.

One hundred basis points sounds small. For a company generating $50B in revenue, though, that’s $500M in additional profit falling to the bottom line.

Corporate America is starting to show receipts

Approximately 25% of S&P 500 companies reported measurable gains from AI implementation during Q2 2026. That’s up from 14% the year prior, nearly doubling the share of firms that can point to concrete, quantifiable benefits.

Morgan Stanley’s 2026 reports have focused on efficiency gains over hype, a notable shift from the breathless tone that characterized much of Wall Street’s AI coverage in 2023 and 2024.

What this means for the AI trade

The sector-dependent nature of Wilson’s analysis is worth unpacking. Industries with high labor costs and repetitive processes stand to capture more durable benefits. Asset-light tech companies that are already operationally efficient have less fat to trim, which paradoxically means AI might matter less to their margins even though they’re best positioned to implement it.

The doubling of companies reporting tangible AI benefits, from 14% to 25% of the S&P 500 in just one year, also introduces a competitive dynamic worth watching. As more firms capture similar efficiencies, the relative advantage shrinks.

The firms most likely to sustain margin benefits beyond 2026, per Wilson’s framework, will be those where AI is not just a cost-cutting tool but a core component of how they generate revenue. That’s a much smaller group than the broad universe of “AI adopters” that the 4.6% figure encompasses.