Smart money is quietly loading 5 stocks
Comparing the 13F windows ending 2026-03-31 and 2025-12-31 for Berkshire Hathaway, Bridgewater, Renaissance Technologies, Citadel, and Two Sigma, 982 CUSIPs passed the raw acceleration filter (net buyers > sellers plus either ≥25% aggregate share growth or ≥2 funds opening new positions). After stripping mega-cap retail favorites, sub-$1B market caps, thin volume, and any name reporting earnings inside seven trading days (which knocked out Barclays, Teck Resources, PACCAR, 3M, and Regency Centers, all Q2 reporters between July 23–29), five names cleared every rail. The single most surprising finding: Berkshire opened a brand-new 39.8M-share stake in Delta Air Lines worth roughly $2.65B at the March mark — Buffett's first US airline position since he liquidated the entire sector in April 2020. Citadel added independently, giving the name a two-manager confirmation with no fund trimming beyond a trivial Bridgewater cut.
DAL
Delta Air Lines, Inc.Berkshire's first US-airline stake since Buffett famously liquidated the entire sector in April 2020 — a 39.8M-share position worth $2.65B was opened at a ~$66 March mark. The concurrent Amazon exit and Apple trimming in the same filing show capital rotating out of mega-cap tech and into simpler cash-flow franchises with widening moats. Citadel independently added 14%, and Bridgewater's trim was rounding-error size. The unpriced catalyst: Delta's premium cabin plus AmEx-loyalty economics increasingly separate it from the spot-fare airline pack, and unit costs step down as the 2023 pilot-contract inflation bulge rolls off in H2 2026.