When: Successful retest of 50 SMA from above

Then: 1% tranche

HOLD

• Berkshire's equity book now has ~30% in two AI names vs. low-volatility compounders in 2024-2025, structurally changing the volatility profile and making historical confluence zone bounces inapplicable
• Q2 2026 buybacks of $4.21B represent only ~0.4% of the $1.061T market cap, creating a thin floor that could pause if stock falls another 10%
• The 22x forward P/E may bake in earnings normalization; using average earnings of the last 3-5 years yields a meaningfully higher multiple—cheap on trailing earnings is not cheap on normalized earnings
• Alphabet concentration of ~30% of equity book creates ~0.6+ correlation to Mag-7 AI complex; a 30% Alphabet drawdown would hit Berkshire's equity book ~9%
• The 200 SMA sits at $492.12; a break of $490 often overshoots 1-3 days before reversal, so a $487 stop is too tight—recommend $483 (below the $464-$468 swing low zone)
• Aggressive analyst's 4% total position size is too aggressive for a conservative mandate; recommend 2-2.5% total with first tranche at 0.5% vs. proposed 1.5%
• If yields above 5% and $40T federal debt create credit event/risk-off, BRK-B trades as beta-1 stock with AI exposure, not as a defensive haven
• Waiting for confirmation at the 50 SMA ($500.39) is not 'performance anxiety'—it's process that avoids being 'chopped up in a choppy tape'

→ vs aggressive: Historical confluence zone bounces from 2024-2025 don't transfer to current portfolio with ~30% AI concentration vs. low-beta compounders—apples to oranges

→ vs aggressive: The 'buyback floor' of $4.21B is ~0.4% of market cap, barely a ripple, and Buffett historically paused buybacks when intrinsic value gap narrowed

→ vs aggressive: Comparing waiting for 50 SMA confirmation to 'missing Apple in 2016' is a false analogy—those investors never had a thesis; confirmation is the point of technical analysis

→ vs neutral: Sitting on the fence misses that the regime may stay disorderly; the defensive haven narrative only works if regime stays orderly

→ vs aggressive: The 0.607 backward-looking beta doesn't reflect post-Alphabet-pivot composition; forward-looking volatility will surprise historical models

→ vs aggressive: The $487 stop below 200 SMA at $492.12 will get run in elevated volatility with 1-3 day overshoots typical on major MA breaks

Partial long with scaled entry on confirmation; 2.5-3% total position in tranches

• Confluence setup is real: 200 SMA at $492.12, lower Bollinger Band at $490.34, $175 billion cash position, and resumed buybacks create tradable mean-reversion setup
• Momentum is genuinely broken: five consecutive MACD histogram lows, RSI at 42 declining from 74, stock below 50 SMA at $500.39
• Alphabet concentration at 30% is a structural re-rating event that increases forward volatility beyond historical beta of 0.607
• Buyback floor argument is overstated: $4.21 billion buyback against $1.061 trillion market cap is 0.25% of float, a signal not a support level
• Forward P/E of 22.34 reflects earnings normalization from Q2 blowout, not expansion potential
• Position sizing should account for existing portfolio Mag-7 correlation: drop to 2% if Mag-7 overweight, 2.5-3% if neutral or underweight
• First target at $510 where 10 EMA, middle Bollinger Band, and prior support converge; extended target $520-529 retracement zone
• Aggressive analyst's 4% position is too large; conservative analyst's 2-2.5% is slightly underweight given asymmetry

→ vs aggressive: Regime error on bounce pattern: historical bounce rate at confluence was generated when BRK-B had different volatility profile with near-zero correlation to Mag-7 AI complex; today correlation is structurally higher

→ vs aggressive: Forward P/E argument is inverted: normalization from Q2 blowout means earnings come DOWN, not that estimates are too pessimistic; can't use lower estimates to justify higher price

→ vs aggressive: Buyback floor overstated: $4.21 billion against $1.061 trillion market cap is signal not support; doesn't constitute meaningful price floor

→ vs aggressive: Alphabet concentration risk underweighted: re-rating event means forward volatility will exceed backward-looking beta of 0.607

→ vs aggressive: Dismissal of momentum indicators as 'coincident' is intellectually lazy; broken momentum signals are real regardless of structural thesis

→ vs conservative: Stop at $483 is structurally incorrect: if thesis is built on 200 SMA at $492, moving stop below it means holding through structural invalidation level; stop should be at $487

→ vs conservative: Wait-for-breakdown-or-reclaim trigger is not a long-side plan: short trigger is a different trade entirely, muddying decision-making and missing opportunity cost of waiting

→ vs conservative: 2-2.5% position size doesn't account for actual confluence math: asymmetric risk-reward means smaller position can be meaningful, but waiting for confirmation risks missing fast bounce entirely