Prior Movesmirror the world’s best investors

Track record

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).

Edge vs S&P 500
+1.76 pts/q
t-statistic
1.45
Complete quarters
47
0%380%759%2014-092020-062026-03This mirror (backtest)S&P 500
The edge is small and, at t = 1.45 over 47 quarters, not statistically significant, the confidence interval includes zero. This is a leak-free walk-forward backtest on a broad as-of candidate universe, gross of costs, complete quarters only. Past performance does not predict future results. Data as of Mar 2026.

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).

Risk-adjusted performance

The edge above is a raw return number. Professional allocators judge a strategy on a different question: how much risk did you take to earn it? A book that returns a lot by swinging violently is worse than one that returns a little, smoothly. So here is the whole risk panel over 47 quarters, net of cost, next to the S&P 500, with nothing hidden.

MetricPrior MovesS&P 500What it means
Sharpe ratio0.690.67return per unit of total risk. Higher is better. This is the number allocators ask for first.
Sortino ratio0.720.55return per unit of downside risk only. Ignores upside volatility, which you do not mind.
Information ratio0.42active return over the S&P divided by how much we deviate from it. The direct 'beat the index at controlled risk' score.
Annualized return+21.6%+14.6%the raw number. Higher here, but read it next to volatility below.
Annualized volatility+25.3%+15.4%how much the return bounces around. Lower is calmer. Ours is higher — the extra return comes partly from taking more risk.
Beta to S&P1.261.00how much we move with the market. 1.26 means we are a slightly amplified version of the index, not market-neutral.
Max drawdown-43.4%-23.9%the worst peak-to-trough fall. Ours is deeper than the market's — the honest cost of the higher return.
Calmar ratio0.500.61annual return divided by max drawdown. Punishes deep crashes.
Ulcer index15.06.9how deep and how long you sit underwater. Lower is less painful to hold.
Gain-to-pain2.402.18total gains divided by total losses. Above 1 means gains outweigh pain.
Return skew0.84-0.97the shape of the tail. Positive (ours) means a right tail of big wins; the market's is negative, a left tail of crashes.
Quarters beating S&P+55%how often the basket outran the index. Just over half — consistent with a small, uncertain edge.
The honest read: Prior Moves earns more than the S&P (+22%/yr vs +15%) but takes more risk to do it (beta 1.26, a deeper -43% drawdown), so the risk-adjusted Sharpe is only marginally better (0.69 vs 0.67). The genuinely favorable trait is the positive return skew: a right tail of large wins, where the index carries a left tail of crashes. This is a small sample; every ratio has a wide error bar and the edge itself is not statistically significant. Shown because a strategy you cannot see the risk of is one you should not trust. Risk-adjusted performance of the leak-free consensus basket, net of cost, over 47 quarters, versus the S&P 500. Ratios use a 1.06% quarterly risk-free rate and standard annualization. This is a small sample: every ratio carries a wide error bar, the edge CI still includes zero, and past performance does not predict future results. Shown for honesty, not as a return promise.

Prediction receipts — called it

The board makes a specific, dated call: which fund adds which name next. Below are the model’s own out-of-sample calls (predicted buy probability at or above 60%), each scored against the actual next filing. Hits and misses both shown. Because JP and UK positions re-file within days, these calls are checkable almost immediately.

JP · 大量保有 (~5 business days)

84 confident calls · hit-rate 79% vs a 31% base rate · out-of-sample AUC 0.81

Call dateInvestorCompanyP(add)Next filing
2026-06-293d_jpJ. フロント リテイリング株式会社66%confirmed ✓
2026-06-15sparx前田工繊株式会社65%confirmed ✓
2026-05-29simplex日本航空電子工業株式会社64%confirmed ✓
2026-05-12oasis_jpイオンフィナンシャルサービス株式会社64%confirmed ✓
2026-03-31avi_jp株式会社アイネス65%confirmed ✓
2026-03-31sparx株式会社LITALICO70%confirmed ✓
2026-03-31avi_jpフォスター電機株式会社69%confirmed ✓
2026-03-313d_jp株式会社西武ホールディングス80%confirmed ✓
2026-03-16strategic_cap株式会社A&Dホロンホールディングス66%confirmed ✓
2026-03-05strategic_cap株式会社A&Dホロンホールディングス68%confirmed ✓
2026-02-27simplex三菱ロジスネクスト株式会社69%confirmed ✓
2026-02-10strategic_cap株式会社A&Dホロンホールディングス68%confirmed ✓

UK · FCA TR-1 (~2 trading days)

1 confident calls · hit-rate 0% vs a 15% base rate · out-of-sample AUC 0.78 (thin sample — still accumulating)

Call dateInvestorCompanyP(add)Next filing
2026-03-19cevianSMITH & NEPHEW PLC80%missed ✗

Live calls made from today forward are logged with their filing-due date and confirmed as each filing lands (332 calls currently awaiting their next filing). Receipts are the model's own out-of-sample calls (P(add)>=0.60), dated and scored against the actual next filing. Hits and misses both shown. JP/UK confirm in days, so a call is checkable almost immediately. Research, not advice.

Cryptographically timestamped

Anyone can backdate a self-reported track record. We don’t. Each day’s confident calls are frozen into one file, hashed, and timestamped on the Bitcoin blockchain via OpenTimestamps before the filings land. On 2026-07-18 that was 332 per-investor calls plus the US Q2026-06-30 board.

sha256 dd54e8798710001144f0737fstamped

Verify: download commit_2026-07-18.json + commit_2026-07-18.json.ots from the public repo and run ots verify commit_2026-07-18.json.ots. The timestamp proves the calls existed on 2026-07-18 and were not edited after the filings. Self-reported receipts can be backdated; this one cannot.

Corrections

What we got wrong and fixed. We publish our mistakes because a research service you can trust is one that shows its corrections, not one that never admits them.

2026-07-03 · Demoted the Europe predicted board

We briefly promoted a Europe (AFM) predicted board at a claimed walk-forward AUC of 0.77.

An adversarial code review flagged that the fund-curation used full-sample filing counts, so information from the future leaked into earlier test folds. A point-in-time re-test (eligibility decided using only filings dated before each window) collapsed the honest AUC to 0.65, below our gate, on just eight live positions.

Europe is back to a disclosed-only board. It will auto-promote only if it clears the honest point-in-time gate on richer data.

2026-07-03 · Corrected the UK board's headline number

The UK predicted board first claimed an out-of-sample AUC of about 0.85.

Same full-sample curation issue. Unlike Europe, the UK lift survived the point-in-time re-test — but at a slightly lower, honest figure.

The UK board now states the point-in-time-validated AUC of about 0.83, and the curation caveat (the exact filing-count band was tuned) is stated on the page.