Ackman, Loeb take different routes on tech bets in early 2026

Two of Wall Street’s best-known stock pickers, Bill Ackman and Daniel Loeb, diverged in their early‑2026 technology positioning: Ackman’s Pershing Square began building a new Microsoft stake while Loeb’s Third Point trimmed its Microsoft holding and added Alphabet. The shifts were revealed in quarterly 13F filings and public statements, highlighting distinct theses on AI and large-cap tech valuations.

Ackman said on X that Pershing Square started accumulating Microsoft shares in February after a pullback, arguing that investors underestimated the value of Microsoft 365 and the company’s AI investments; the fund said it would disclose the stake in its forthcoming 13F filing. Third Point, by contrast, sold roughly 925,000 Microsoft shares in the first quarter and bought about 175,000 Alphabet shares, according to regulatory filings, while both firms established positions in Meta Platforms.

The moves matter for short‑term market dynamics because large institutional rotations among the so‑called AI‑exposed mega‑caps can amplify sector volatility. Asset managers have been more selective in the “Magnificent Seven” group, concentrating where they see clearer monetization of AI or more attractive risk‑reward, which helps explain divergent tactics between concentrated activists and opportunistic hedge funds. Market reaction has included intra‑day swings in affected names as 13F disclosures filter through trader desks.

In a broader context, both Ackman and Loeb have moved away from headline‑grabbing proxy fights toward quieter portfolio adjustments and selective activism, reflecting a market environment where direct engagements can be costly and time‑consuming. Their contrasting trades illustrate how investors are reframing bets in light of AI adoption timelines, regulatory uncertainty and evolving earnings trajectories at tech giants.

Analysts say Ackman’s Microsoft thesis leans on durable cloud and productivity cash flows that should benefit from AI monetization, while Loeb’s derisking signals caution and portfolio rebalancing. Going forward, investors will watch subsequent 13F filings, earnings reports and AI revenue disclosures to assess which approach better captures the next leg of tech sector returns; risk management and position sizing will remain key amid potential headline‑driven swings.