Prior Movesmirror the world’s best investors

🪞 Warren Buffett · Berkshire Hathaway

Value, long-duration, quality businesses.

Style
Value & quality
Disclosed holdings
29
Model accuracy (AUC)
57%
Backtest edge
-2.1 pts/q

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🔮 Predicted next buys: quarter ending 2026-06-30

Pure model output for Warren Buffett · Berkshire Hathaway’s next 13F filing, no public confirmation yet. Probabilities are the model’s raw scores.

#TickerCompanyModel probability
1GOOGAlphabet Inc-Cl C97%
2MMacy'S Inc95%
3WATWaters Corp87%
4DDD3D Systems Corp79%
5TQJSignature Bank67%
6PJXPetroleo Brasil-Sp Pref Adr67%
7SCSantander Consumer Usa Holdi67%
8AIZAssurant Inc67%
9HUYAHuya Inc-Adr67%
10FPIFarmland Partners Inc67%

📉 Predicted exits, conviction fading

Of Warren Buffett · Berkshire Hathaway’s current disclosed holdings, the names a model flags as most likely to be EXITED or TRIMMED next quarter, before the 13F shows it. Model score (not a calibrated probability), ranked. Holdings as of 2026-03-31.

TickerCompanyWeightLast moveSell likelihood
-Constellation Brands Inc0.04%trimmed last Q▲▲ 66
NUENucor Corp0.25%trimmed last Q▲▲ 62
NYTNew York Times Co Mtn Be0.48%added last Q▲▲ 61
LENLennar Corp0.33%added last Q 55
DALDelta Air Lines Inc1.01%trimmed last Q 53
MMacys Inc0.02%just entered 51
GOOGAlphabet Inc0.39%just entered 51
CHVChevron Corporation6.64%trimmed last Q 50

⚠️ This predicts the ACTION (whether Warren Buffett · Berkshire Hathaway reduces the position), not a return and not a short. A 13F shows long positions only, so a “sell” here means exiting or cutting a long, never shorting the stock. Walk-forward validated on the decision (AUC ≈ 0.66), but acting on it is not shown to make money. Research, not advice.

📜 Top disclosed holdings: Mar 2026

TickerCompanyWeightLast change
AAPLApple Inc21.99%✊ Held
AXPAmerican Express Co17.43%✊ Held
KOCoca Cola Co11.56%✊ Held
BACBank America Corp9.52%✊ Held
CHVChevron Corporation6.64%➖ Trimmed
OXYOccidental Pete Corp6.55%✊ Held
GOOGLAlphabet Inc5.93%➕ Added
-Chubb Ltd Switz4.24%✊ Held
DUTMoodys Corp4.09%✊ Held
KHCKraft Heinz Co2.78%✊ Held
TRLDavita Inc1.76%✊ Held
KRKroger Co1.38%✊ Held
SIRISiriusxm Holdings Inc1.09%✊ Held
DALDelta Air Lines Inc1.01%➖ Trimmed
VRSNVerisign Inc0.85%✊ Held

Source: SEC Form 13F (public domain), long U.S. equity positions only, disclosed up to 45 days after quarter-end. Top 15 of 29 shown.

💲 Where they bought: accumulation cost

13F shows holdings, not trade prices. Implied average cost is total value ÷ shares; the zone is the price range that quarter, where they accumulated. “vs cost” is today versus that average. This is where they bought, not a future price.

TickerAvg costAccumulation zoneTodayvs costDip target
AXP$302.48$291–$381$355.35+17.5%$324.97
KO$76.05$67–$80$81.56+7.2%$68.59
AAPL$253.79$246–$278$333.74+31.5%$236.59
OXY$65.00$41–$66$53.77-17.3%$56.19
BAC$48.75$46–$57$61.27+25.7%$48.27
GOOGL$287.56$273–$343$346.77+20.6%$292.53
KHC$22.49$21–$24$25.88+15.1%$20.57
DAL$66.48$58–$75$84.17+26.6%$63.72
SIRI$23.08$20–$23$30.42+31.8%$19.47

Dip target = the recent high discounted by this investor’s historical tendency to add on weakness. Behavioral, not a guarantee.

🧬 Factor fingerprint, the style behind the book

81% of Warren Buffett · Berkshire Hathaway’s day-to-day swings are explained by public, buyable factors (Fama-French 5 + momentum), regressed on their current disclosed book (13 of 14 names, ~451 trading days). Market beta 0.98.

growth
value
large-cap
small-cap
low-quality
quality
contrarian
momentum
aggressive
conservative

⚠️ This is the part the great investors can’t hide: their style is a tilt toward known factors, and every one of these is sold as a cheap index ETF. Buying the factors gets you most of the book for a few basis points. What’s left after the factors (the residual) is noisy on a single concentrated book and is not a reliable edge, read this as transparency about the style you’re copying, not a secret signal. Loadings are in-sample on current static weights, U.S. long positions only. Research, not advice.

📈 This mirror’s track: backtest vs S&P 500

Avg edge / quarter
-2.1 pts
Quarters beating S&P
15/34
Avg quarterly return
+1.5%
-41%84%208%2017-092021-122025-12This mirror (backtest)S&P 500

⚠️ Read this honestly. Leak-free walk-forward backtest: top-10 predicted new buys ranked from a broad ~2,000-name universe known at the rebalance date, equal-weight, 1-quarter holds, complete quarters only, gross (before costs). Small samples, per-investor edges are noisy and not statistically significant. The consensus mirror's backtest shows +1.8 pts/quarter net vs the S&P 500 over 47 complete quarters (2014–2026), directional, NOT statistically significant (t≈1.4; 95% CI includes zero). Past performance does not predict future results. Not investment advice.

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Prior Moves is a research publication: one impersonal model portfolio per investor, identical for every reader. You place any trades yourself at your own broker. No execution, no custody, no individualised advice.