Greg Abel Raised Berkshire's Delta Stake 44% to 8.7%, Reversing the Airline Exit Buffett Made in 2020

Berkshire Hathaway’s Greg Abel increased its Delta Air Lines stake by 44% last quarter, buying 17.5M shares to take holdings to 57.3M shares valued at $5.4B (and lifting its ownership to 8.7% from 6.1%). Delta stock has rebounded sharply—up 33% over the past 12 months and 19% YTD—while trading at 13x trailing and 12x forward earnings. With 89% of analysts rating Delta a buy and a median $105 price target (implying ~28% upside), the news is supportive for investor sentiment, though it is largely positioning/portfolio-flow driven rather than a new fundamental earnings catalyst.

Analysis

This is less a fundamental re-rating catalyst than a signaling event that can narrow DAL’s “airline discount” versus AAL/UAL/LUV. When a high-conviction allocator steps in, the market tends to assume better information on durability of cash flow and balance-sheet survivability; that matters most for airlines because equity is a residual claim on a highly cyclical asset base. The second-order winner is DAL’s cost of capital relative to weaker peers: if equity investors award a lower beta and credit spreads stay tight, DAL can fund fleet/ops with less dilution pressure than lower-quality carriers.

The important window is 1-3 months, not today’s headline pop. The trade only persists if the next booking and unit-revenue updates confirm that premium demand is still offsetting macro softness; otherwise the multiple can compress back to low-teens quickly because airline earnings are short-duration and fuel/labor shocks transmit fast. If capacity discipline breaks, or if recession odds rise, the “Berkshire endorsement” becomes a fade rather than a floor.

Contrarian take: consensus is treating this as a clean validation of DAL’s business quality, but Berkshire also has a large cash pile and a history of buying liquid, understandable franchises when alternatives are scarce. That does not necessarily mean the stock is cheap in a cycle-adjusted sense. What would falsify the bullish read is DAL underperforming JETS by ~5%+ over the next 4-6 weeks, or a guide-down in unit revenue/margins on the next print; at that point the move looks sentiment-led, not fundamental.

Key Decisions for Investors

• Long DAL / short AAL as a quality-spread trade over the next 1-3 months; target 8-12% relative outperformance, with the thesis invalidated if airline credit spreads tighten broadly and the whole complex rerates together.
• If initiating new exposure, buy DAL on a pullback rather than chasing the headline; the risk/reward is better if the market gives back the event-driven premium before the next earnings catalyst.
• Use a DAL call spread into the next earnings cycle only if booking data remains stable; this keeps premium spend limited while expressing the view that Berkshire’s signal can support a modest multiple expansion.
• Stay cautious on LUV and AAL on rallies: if capital rotates toward balance-sheet winners, these are the most vulnerable to multiple compression and negative relative performance.