Smart money is quietly loading 5 stocks
We compared the 2026-03-31 13F filings against 2025-12-31 across the five configured watchlist managers (Berkshire, Bridgewater, Renaissance, Citadel, Two Sigma). All five returned holdings for both windows. Of 902 CUSIPs that passed the raw acceleration screen, five survived the quality rails (market cap >$1B, ADV >$10M, earnings outside 7 trading days, no mega-cap retail favorites, no SPACs/ETFs/levered products). The single most surprising finding is the asymmetry of Berkshire's repositioning under Greg Abel's first full quarter as CEO: a clean new $2.6B Delta Air Lines stake (after Buffett spent five years calling airlines a value trap), a Class A Alphabet +204% acceleration (excluded here under the mega-cap-favorite rule), and a near-tripling of the New York Times position. The Delta thesis is partially public — the 13F has been live for three weeks and financial media covered it heavily — but the broader premium-cabin structural shift is not the way retail is framing the trade. Lennar was dropped from the final list because it reports June 11, inside the 7-trading-day window. The remaining four picks (PCAR, MMM, OR, plus NYT) lean on cross-fund consensus with at least one slow-moving manager (Berkshire or Bridgewater) anchoring conviction.
DAL
Delta Air Lines, Inc.The Greg Abel–era Berkshire opened a clean ~$2.65B Delta stake — its first airline position since dumping the sector at COVID lows. The signal is not the airline cycle generally; Abel picked DAL specifically and ignored AAL, UAL, LUV in the same quarter. Delta's premium-cabin mix now drives the bulk of operating profit and its SkyMiles co-brand card economics resemble a payments network more than a commodity carrier. Citadel quietly added 14% alongside. The catalyst retail hasn't priced is the structural margin step-up from premium-cabin penetration and capacity discipline — the market is still framing DAL as a cyclical reopening trade.