🗂 All mirrors
Every investor Prior Moves tracks, one model portfolio (“mirror”) each, identical for every reader: disclosed 13F holdings plus the stocks a model predicts they’ll buy next, about six weeks before the filing. Backtest figures are gross, small-sample and not statistically significant.
“Next buy” = the name the model ranks first among everything that investor could buy next quarter. On walk-forward holdout a top-ranked name is the actual next buy 1.7% of the time, against a board base rate of 0.62%. Not a certainty, not advice. “Edge” = average quarterly out-performance vs the S&P 500 in a walk-forward backtest, before the 13F filing lag (broad as-of candidate universe, gross, complete quarters only). 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.