Prior Movesmirror the world’s best investors

Track record

The consensus mirror's backtest shows +2.2 pts/quarter net vs the S&P 500 over 35 complete quarters (2017Q3 to 2026Q1), directional, NOT statistically significant (t≈1.3; 95% CI includes zero). Most of that average is one quarter: 2026Q1 posted a +47.5 pt edge, roughly half of it two AI-hardware names (SNDK +258%, AMD +186%) marked at what proved to be a local peak; excluding it the edge is +0.9 pts/quarter.

Edge vs S&P 500
+2.22 pts/q
t-statistic
1.31
Complete quarters
35
0%245%490%2017-092021-122026-03This mirror (backtest)S&P 500
The edge is small and, at t = 1.31 over 35 quarters, not statistically significant, the confidence interval includes zero. This is a walk-forward backtest on a broad as-of candidate universe, net of liquidity-scaled trading costs, complete quarters only. One assumption matters more than the rest, so we state it here rather than in a footnote: each quarter’s positions are formed from 13F holdings as of quarter end, and those filings are not public for up to 45 days. Re-run so that nothing is bought until the filing is actually public, the same pipeline returns −3.4 pts/q (t = −1.74) over 34 complete quarters. The edge above does not survive that constraint. Past performance does not predict future results. Data as of Jun 2026.

The consensus mirror's backtest shows +2.2 pts/quarter net vs the S&P 500 over 35 complete quarters (2017Q3 to 2026Q1), directional, NOT statistically significant (t≈1.3; 95% CI includes zero). Most of that average is one quarter: 2026Q1 posted a +47.5 pt edge, roughly half of it two AI-hardware names (SNDK +258%, AMD +186%) marked at what proved to be a local peak; excluding it the edge is +0.9 pts/quarter.

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 34 quarters, net of cost, next to the S&P 500, with nothing hidden.

MetricPrior MovesS&P 500What it means
Sharpe ratio0.590.59return per unit of total risk. Higher is better. This is the number allocators ask for first.
Sortino ratio0.600.48return per unit of downside risk only. Ignores upside volatility, which you do not mind.
Information ratio0.28-active return over the S&P divided by how much we deviate from it. The direct 'beat the index at controlled risk' score.
Annualized return+17.9%+14.4%the raw number. Higher here, but read it next to volatility below.
Annualized volatility+23.0%+17.2%how much the return bounces around. Lower is calmer. Ours is higher: the extra return comes partly from taking more risk.
Beta to S&P1.141.00how much we move with the market. 1.26 means we are a slightly amplified version of the index, not market-neutral.
Max drawdown-27.9%-23.9%the worst peak-to-trough fall. Ours is deeper than the market's: the honest cost of the higher return.
Calmar ratio0.640.60annual return divided by max drawdown. Punishes deep crashes.
Ulcer index11.18.0how deep and how long you sit underwater. Lower is less painful to hold.
Gain-to-pain1.691.69total gains divided by total losses. Above 1 means gains outweigh pain.
Return skew0.08-1.00the 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+65%-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 (+18%/yr vs +14%) but takes more risk to do it (beta 1.14, a deeper -28% drawdown), so the risk-adjusted Sharpe is only marginally better (0.59 vs 0.59). 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 consensus basket, net of cost, over 34 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.

Timestamped calls, graded

These are the calls that were hashed and timestamped on Bitcoin BEFORE the filing landed, then graded against what the filer actually did. A call is scored only once at least 16 days have passed, because a call stamped yesterday cannot have been confirmed yet and counting it as a miss would be arithmetic rather than evidence. Record so far, 2026-07-07 to 2026-09-21.

MarketGradedHitsHit rateBase rateVerdict
HK00n/an/atoo few scored calls to call
JP22418%3.5%BEATS_OWN_BASE_RATE
KR00n/an/atoo few scored calls to call
UK1800%0.0%no better than the base rate

Read this honestly, because it is the number that counts against us. On JP 4 of 22 landed, which is above the 3.5% base rate but too few calls to claim anything. 66,319 daily receipt rows collapse to 85 distinct bets, and the distinct count is the one reported here.

Holdout backtest, which is not the record above

A different measurement, and a weaker kind of evidence. The model is trained on the older 70% of each market’s filing history and scored on the 30% it never saw, and the rows below are the calls it made there at a predicted buy probability of 60% or higher, each checked against the filing that actually followed. Hits and misses both shown. These calls were NOT stamped in advance: the filings already existed when the model ran, so this shows the model can rank, and it cannot show what the section above shows. Where the two disagree, the stamped record is the one that counts.

JP · 大量保有 (due ~5 business days; graded on a 7-day window)

42 confident calls · hit-rate 83% vs a 26% base rate · out-of-sample AUC 0.71

Call dateInvestorCompanyP(add)Next filing
2026-09-18jp_株式会社ストラテジックキャピタルKHネオケム株式会社87%confirmed ✓
2026-09-16jp_株式会社ストラテジックキャピタルガンホー・オンライン・エンターテイメント株式会社82%confirmed ✓
2026-09-15jp_株式会社ストラテジックキャピタルガンホー・オンライン・エンターテイメント株式会社82%missed ✗
2026-08-19oasis_jp株式会社ニチレイ74%confirmed ✓
2026-07-29oasis_jp株式会社インフォマート60%confirmed ✓
2026-07-27strategic_cap株式会社ニップン61%missed ✗
2026-06-223d_jp株式会社西武ホールディングス72%confirmed ✓
2026-05-25avi_jp株式会社アイネス61%confirmed ✓
2026-05-13oasis_jpイオンフィナンシャルサービス株式会社65%confirmed ✓
2026-05-12oasis_jpイオンフィナンシャルサービス株式会社74%confirmed ✓
2026-05-12oasis_jp株式会社カカクコム61%missed ✗
2026-05-11oasis_jpイオンフィナンシャルサービス株式会社84%confirmed ✓

UK · FCA TR-1 (~2 trading days)

2 confident calls · hit-rate 100% vs a 17% base rate · out-of-sample AUC 0.84 (thin sample: still accumulating)

Call dateInvestorCompanyP(add)Next filing
2026-04-24oasis_ukOPTIMA HEALTH PLC72%confirmed ✓
2025-10-02oasis_ukCOSTAIN GROUP PLC63%confirmed ✓

KR · 대량보유 보고 (~5 business days)

42 confident calls · hit-rate 57% vs a 9% base rate · out-of-sample AUC 0.42

Call dateInvestorCompanyP(add)Next filing
2026-08-18kr_J.P.MORGANSECURITIESPLC엠케이전자66%confirmed ✓
2026-08-04kr_미래에셋자산운용뉴로메카69%missed ✗
2026-07-20kr_J.P.MORGANSECURITIESPLC성광벤드82%missed ✗
2026-07-15kr_J.P.MORGANSECURITIESPLC성광벤드81%missed ✗
2026-07-15kr_에스디와이모티브링크73%missed ✗
2026-07-10kr_MiriCapitalManagementLLC지어소프트67%confirmed ✓
2026-06-24kr_한화에어로스페이스한국항공우주77%confirmed ✓
2026-06-23kr_몬타나41핑거77%missed ✗
2026-06-18kr_삼성자산운용우리기술76%confirmed ✓
2026-06-16kr_한화에어로스페이스한국항공우주69%confirmed ✓
2026-06-15kr_J.P.MORGANSECURITIESPLC성광벤드81%confirmed ✓
2026-06-11kr_J.P.MORGANSECURITIESPLC이노션87%missed ✗

Live calls made from today forward are logged with their filing-due date and confirmed as each filing lands: 10 confirmed so far and 83 awaiting their next filing, counted as distinct bets rather than as the 152 daily receipt rows they were stamped across. 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.

The ledger, call by call

Every stamped call with its market, filer, issuer, attested stamp, window, maturity date, outcome and the rule that graded it. The table loads the latest grading from the ledger route and falls back to the copy built into this page. One count is published: graded rows and hits among them. A stranger can pick any row and check it against the artifact named on the methodology page.

Source: built into this page at 2026-09-22T07:24:07Z. 90 rows. Each call appears once per grading rule, so a call graded under both the old rule and the fixed-window rule has two rows. The published count is the row marked “counted”; adding HIT and MISS across every rule double-counts.

MarketRuleWindowGradedHitsHit rate95% intervalCounted
JPr1-2026-09-11-fixed-market-window7 days22418.2%7% to 39%counted
JPr1-pre-2026-09-11-fixed-21d21 days12433.3%14% to 61%no, superseded
UKr1-2026-09-11-fixed-market-window16 days1800.0%0% to 18%counted
UKr1-pre-2026-09-11-fixed-21d21 days1800.0%0% to 18%no, superseded

Show:

MarketFilerIssuerStampBlockWindowMaturesOutcomeRule
JP3D Investment Partners30862026-07-0795701172026-07-14HIT (2026-07-08)r1-2026-09-11-fixed-market-window
JPOasis Management21752026-09-0696579972026-09-13HIT (2026-09-10)r1-2026-09-11-fixed-market-window
JPOasis Management24922026-07-2395932072026-07-30HIT (2026-07-29)r1-2026-09-11-fixed-market-window
JPOasis Management28712026-08-1896300572026-08-25HIT (2026-08-19)r1-2026-09-11-fixed-market-window
JP3D Investment Partners90242026-09-0596554372026-09-12MISSr1-2026-09-11-fixed-market-window
JPAsset Value Investors40252026-08-1896310872026-08-25MISSr1-2026-09-11-fixed-market-window
JPAsset Value Investors67942026-08-3196495472026-09-07MISSr1-2026-09-11-fixed-market-window
JPAsset Value Investors97422026-08-3196495472026-09-07MISSr1-2026-09-11-fixed-market-window
JPDalton Investments90692026-07-0795701172026-07-14MISSr1-2026-09-11-fixed-market-window
JPOasis Management17212026-08-2896438272026-09-04MISSr1-2026-09-11-fixed-market-window
JPOasis Management24132026-08-2096323672026-08-27MISSr1-2026-09-11-fixed-market-window
JPOasis Management37742026-07-0795701172026-07-14MISSr1-2026-09-11-fixed-market-window
JPOasis Management54232026-09-0796595472026-09-14MISSr1-2026-09-11-fixed-market-window
JPOasis Management61042026-07-0795701172026-07-14MISSr1-2026-09-11-fixed-market-window
JPSPARX Asset Management70332026-08-0696128572026-08-13MISSr1-2026-09-11-fixed-market-window
JPSimplex Asset Management68072026-08-0696134972026-08-13MISSr1-2026-09-11-fixed-market-window
JPStrategic Capital20012026-08-0496094172026-08-11MISSr1-2026-09-11-fixed-market-window
JPjp_オービス・インベストメント・マネジメント・リミテッド69512026-09-0396524172026-09-10MISSr1-2026-09-11-fixed-market-window
JPjp_Old Peak Group Ltd.48192026-08-3196495472026-09-07MISSr1-2026-09-11-fixed-market-window
JPjp_Sapphireterra Capital, LLC80112026-08-3196495472026-09-07MISSr1-2026-09-11-fixed-market-window
JPオービス・インベストメント・マネジメント・リミテッド69512026-09-0696579972026-09-13MISSr1-2026-09-11-fixed-market-window
JPOld Peak Group Ltd.48192026-09-0696579972026-09-13MISSr1-2026-09-11-fixed-market-window
JPAsset Value Investors67272026-09-13-72026-09-20PENDINGr1-2026-09-11-fixed-market-window
JPStrategic Capital77452026-09-11-72026-09-18PENDINGr1-2026-09-11-fixed-market-window
JPBerkshire Hathaway-7-UNMAPPEDr1-2026-09-11-fixed-market-window
JPE09662-7-UNMAPPEDr1-2026-09-11-fixed-market-window
JPE34245-7-UNMAPPEDr1-2026-09-11-fixed-market-window
JP3D Investment Partners30862026-07-07957011212026-07-28HIT (2026-07-08)r1-pre-2026-09-11-fixed-21d
JPOasis Management24922026-07-23959320212026-08-13HIT (2026-07-29)r1-pre-2026-09-11-fixed-21d
JPOasis Management28712026-08-18963005212026-09-08HIT (2026-08-19)r1-pre-2026-09-11-fixed-21d
JPSimplex Asset Management68072026-08-06961349212026-08-27HIT (2026-08-25)r1-pre-2026-09-11-fixed-21d
JPAsset Value Investors40252026-08-18963108212026-09-08MISSr1-pre-2026-09-11-fixed-21d
JPDalton Investments90692026-07-07957011212026-07-28MISSr1-pre-2026-09-11-fixed-21d
JPOasis Management17212026-08-28964382212026-09-18MISSr1-pre-2026-09-11-fixed-21d
JPOasis Management24132026-08-20963236212026-09-10MISSr1-pre-2026-09-11-fixed-21d
JPOasis Management37742026-07-07957011212026-07-28MISSr1-pre-2026-09-11-fixed-21d
JPOasis Management61042026-07-07957011212026-07-28MISSr1-pre-2026-09-11-fixed-21d
JPSPARX Asset Management70332026-08-06961285212026-08-27MISSr1-pre-2026-09-11-fixed-21d
JPStrategic Capital20012026-08-04960941212026-08-25MISSr1-pre-2026-09-11-fixed-21d
JP3D Investment Partners90242026-09-05-212026-09-26PENDINGr1-pre-2026-09-11-fixed-21d
JPAsset Value Investors67942026-08-31-212026-09-21PENDINGr1-pre-2026-09-11-fixed-21d
JPAsset Value Investors97422026-08-31-212026-09-21PENDINGr1-pre-2026-09-11-fixed-21d
JPOasis Management21752026-09-06-212026-09-27PENDINGr1-pre-2026-09-11-fixed-21d
JPOasis Management54232026-09-07-212026-09-28PENDINGr1-pre-2026-09-11-fixed-21d
JPjp_オービス・インベストメント・マネジメント・リミテッド69512026-09-03-212026-09-24PENDINGr1-pre-2026-09-11-fixed-21d
JPjp_Old Peak Group Ltd.48192026-08-31-212026-09-21PENDINGr1-pre-2026-09-11-fixed-21d
JPjp_Sapphireterra Capital, LLC80112026-08-31-212026-09-21PENDINGr1-pre-2026-09-11-fixed-21d
JPオービス・インベストメント・マネジメント・リミテッド69512026-09-06-212026-09-27PENDINGr1-pre-2026-09-11-fixed-21d
JPOld Peak Group Ltd.48192026-09-06-212026-09-27PENDINGr1-pre-2026-09-11-fixed-21d
JPBerkshire Hathaway-21-UNMAPPEDr1-pre-2026-09-11-fixed-21d
JPE09662-21-UNMAPPEDr1-pre-2026-09-11-fixed-21d
JPE34245-21-UNMAPPEDr1-pre-2026-09-11-fixed-21d
UKCauseway CapitalGB00B63H84912026-07-07957011162026-07-23MISSr1-2026-09-11-fixed-market-window
UKCauseway CapitalGB00BP0RGD032026-07-07957011162026-07-23MISSr1-2026-09-11-fixed-market-window
UKCauseway CapitalJE00BN574F902026-07-07957011162026-07-23MISSr1-2026-09-11-fixed-market-window
UKCevian CapitalGB00021623852026-07-07957011162026-07-23MISSr1-2026-09-11-fixed-market-window
UKGatemore CapitalGB00BYV3J7552026-07-07957011162026-07-23MISSr1-2026-09-11-fixed-market-window
UKLansdowne PartnersGB00BM8NFJ842026-07-07957011162026-07-23MISSr1-2026-09-11-fixed-market-window
UKOasis ManagementGB00044788962026-07-07957011162026-07-23MISSr1-2026-09-11-fixed-market-window
UKOasis ManagementGB00046574082026-07-07957011162026-07-23MISSr1-2026-09-11-fixed-market-window
UKOasis ManagementGB00049156322026-07-07957011162026-07-23MISSr1-2026-09-11-fixed-market-window
UKOasis ManagementGB00B64NSP762026-07-08957233162026-07-24MISSr1-2026-09-11-fixed-market-window
UKOasis ManagementGB00BD8SLV432026-07-07957011162026-07-23MISSr1-2026-09-11-fixed-market-window
UKSilchester InternationalGB00055768132026-07-07957011162026-07-23MISSr1-2026-09-11-fixed-market-window
UKSilchester InternationalGB00067760812026-07-07957011162026-07-23MISSr1-2026-09-11-fixed-market-window
UKSilchester InternationalGB00096970372026-07-07957011162026-07-23MISSr1-2026-09-11-fixed-market-window
UKSilchester InternationalGB00339864972026-07-07957011162026-07-23MISSr1-2026-09-11-fixed-market-window
UKSilchester InternationalGB00BP9LHF232026-07-07957011162026-07-23MISSr1-2026-09-11-fixed-market-window
UKprimestoneGB00BFX3K7702026-07-07957011162026-07-23MISSr1-2026-09-11-fixed-market-window
UKprimestoneGB00BK71XP162026-07-07957011162026-07-23MISSr1-2026-09-11-fixed-market-window
UKPrimeStone Capital LLP-16-UNMAPPEDr1-2026-09-11-fixed-market-window
UKCauseway CapitalGB00B63H84912026-07-07957011212026-07-28MISSr1-pre-2026-09-11-fixed-21d
UKCauseway CapitalGB00BP0RGD032026-07-07957011212026-07-28MISSr1-pre-2026-09-11-fixed-21d
UKCauseway CapitalJE00BN574F902026-07-07957011212026-07-28MISSr1-pre-2026-09-11-fixed-21d
UKCevian CapitalGB00021623852026-07-07957011212026-07-28MISSr1-pre-2026-09-11-fixed-21d
UKGatemore CapitalGB00BYV3J7552026-07-07957011212026-07-28MISSr1-pre-2026-09-11-fixed-21d
UKLansdowne PartnersGB00BM8NFJ842026-07-07957011212026-07-28MISSr1-pre-2026-09-11-fixed-21d
UKOasis ManagementGB00044788962026-07-07957011212026-07-28MISSr1-pre-2026-09-11-fixed-21d
UKOasis ManagementGB00046574082026-07-07957011212026-07-28MISSr1-pre-2026-09-11-fixed-21d
UKOasis ManagementGB00049156322026-07-07957011212026-07-28MISSr1-pre-2026-09-11-fixed-21d
UKOasis ManagementGB00B64NSP762026-07-08957233212026-07-29MISSr1-pre-2026-09-11-fixed-21d
UKOasis ManagementGB00BD8SLV432026-07-07957011212026-07-28MISSr1-pre-2026-09-11-fixed-21d
UKSilchester InternationalGB00055768132026-07-07957011212026-07-28MISSr1-pre-2026-09-11-fixed-21d
UKSilchester InternationalGB00067760812026-07-07957011212026-07-28MISSr1-pre-2026-09-11-fixed-21d
UKSilchester InternationalGB00096970372026-07-07957011212026-07-28MISSr1-pre-2026-09-11-fixed-21d
UKSilchester InternationalGB00339864972026-07-07957011212026-07-28MISSr1-pre-2026-09-11-fixed-21d
UKSilchester InternationalGB00BP9LHF232026-07-07957011212026-07-28MISSr1-pre-2026-09-11-fixed-21d
UKprimestoneGB00BFX3K7702026-07-07957011212026-07-28MISSr1-pre-2026-09-11-fixed-21d
UKprimestoneGB00BK71XP162026-07-07957011212026-07-28MISSr1-pre-2026-09-11-fixed-21d
UKPrimeStone Capital LLP-21-UNMAPPEDr1-pre-2026-09-11-fixed-21d

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 2026-09-22 that was 1559 per-investor calls plus the US Q2026-09-30 board.

sha256 40e8c5b0d644bb7b77f8ec7c…stamped

Verify: download commit_2026-09-22.json + commit_2026-09-22.json.ots from the public repo and run ots verify commit_2026-09-22.json.ots. The timestamp proves the calls existed on 2026-09-22 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.