Warren Buffett and Greg Abel Spent $78 Billion Buying This Stock Since 2018 -- That's More Than Was Spent Buying Apple, Chevron, Bank of America, and Occidental Petroleum, Combined!

Key event: Berkshire Hathaway has repurchased approximately $78.0 billion of its own stock since mid-July 2018, after a board rule change on July 17, 2018 that allowed open-ended buybacks when cash and equivalents exceed $30.0 billion. Warren Buffett retired as CEO on Dec. 31 and successor Greg Abel resumed repurchases after a ~21-month pause, filing an 8-K on March 5, 2026 disclosing roughly $225 million in Class A (BRKA) buys. Outstanding shares have fallen ~12.6% since 2018, bolstering EPS and making the shares more attractive to value-seeking investors.

Analysis

Corporate-funded share repurchases act like a mechanical EPS lever: every 1% of float retired produces roughly a 1% EPS lift absent operating changes, and if repurchases run persistently they convert excess cash into concentrated equity exposure rather than optionality. If management maintains a steady buyback cadence for 12–36 months, expect measurable per-share earnings accretion that can outpace organic net income growth and support a higher valuation multiple even with flat top-line performance.

Second-order winners include long-term holders and index-huggers: a shrinking free float increases effective insider ownership and can amplify index reweighting flows, materially boosting short-term price elasticity. Conversely, losers include opportunistic acquirers of assets inside the conglomerate (insurance float deployment) — persistent retirements reduce dry powder and therefore the firm’s tail optionality to make transformational purchases during market dislocations.

Key risks cluster around liquidity and capital needs: a sudden insurance loss, credit-market stress, or a macro shock that forces cash conservation would reverse repurchases quickly and produce compressed multiples; such reversals can happen inside a single quarter. Watch high-frequency signals (quarterly cash build, 8-K repurchase announcements, sizeable M&A activity) over days-to-weeks, while structural re-rating or governance shifts play out over months-to-years.

From a market microstructure perspective, continued repurchases shrink tradable supply and raise realized volatility; that creates fertile ground for volatility-selling strategies and time-decay option plays, but it also increases execution risk and slippage for large blocks. The calibrated approach: treat the buyback as a steady tailwind but underwrite an event-driven liquidity stop — the best returns come from pairing directional exposure with explicit insurance against a capital-conservation pivot.

Key Decisions for Investors

• Overweight BRK.B (BRKB) for 12–24 months: establish a 2–4% portfolio position, hedge market beta with -0.8x S&P futures to isolate buyback-driven alpha. Risk: if repurchases pause or macro hit occurs, expect ~15–25% drawdown; Reward: target 12–18% annualized TSR from EPS accretion and multiple support.
• Diagonal call structure on BRK.B (BRKB): buy 18–24 month ITM calls and sell rolling 1–3 month OTM calls to monetize time decay while keeping upside exposure. Risk limited to net premium outlay; Reward asymmetric if repurchases and multiple expansion continue (aim for 2–3x payoff if stock drifts higher over 12–18 months).
• Long BRK.B / Short AAPL equal-dollar pair for 9–12 months to isolate capital-allocation alpha versus pure platform exposure. Thesis: buyback-driven EPS lift should outperform secular tech multiple moves in a benign macro; set relative stop at 10% adverse divergence. Expected payoff: 8–15% absolute if buybacks persist and tech multiple contracts modestly.
• Liquidity/volatility play: sell near-term implied volatility on BRK options (short 30–60 day strangles) size-limited to 0.5–1% notional to capture elevated realized vol from shrinking float, funded by buying longer-dated protection (9–12 months). Risk: gap moves on buyback halt or major reserve shock; cap position size and buy protective wings.