EvidenceSAVNG Research · September 10, 2026

Evidence: every screen on the site, compared on one yardstick

The claim. Top fifth minus bottom fifth over the next twelve months versus the S&P 500, 2010 to 2025: Dividend yield +6.7 pts; Price to book (all caps) +11.6 pts; Price to book, small caps (< $2B) +17.9 pts; Piotroski F-score (quality) −3.0 pts; Insider buying in the prior 6 months (opportunistic buys, count) +4.1 pts; NCAV / price (net-nets) +1.6 pts. The owner-earnings ranking, tested the same way, was +1.4 pts.

Top fifth minus bottom fifth, twelve months ahead, versus the S&P 500 and small caps, with the market-state split, for every factor we screen on. The Screen Lab lets you test any other combination the same way.

How we tested it
  • Universe: 657 U.S. companies with ten-plus years of prices (8,703 company-years). All factors, every screen.
  • Point in time: factor values from the latest fiscal year known on each 10-K filing date; price = first close on or after the filing.
  • Outcome: total return over the next 12 and 36 months minus the S&P 500, and minus small caps (IWM) for 12 months; companies ranked into fifths within each filing year; market state = S&P ≥10% below its one-year high on the entry day.
  • Limits: survivorship-tilted, small-cap-heavy universe; no costs; the spread between fifths is the finding, the levels are not.
Reproduce: node savng-insider-history/factor-study.js → reports/factor-study.json (generated 2026-09-11); served at /screener-evidence; any filter combination live at /backtest.
Every screen, one yardstick
ScreenCompany-yearsBest fifth vs S&PWorst fifthSpread vs S&PSpread vs small capsSpread, 3 yrs / yrWhere it lives
Dividend yield5,001+4.3 pts−2.4 pts+6.7 pts+6.1 pts+4.5 ptsScreen →
Price to book (all caps)7,684+10.4 pts−1.2 pts+11.6 pts+11.0 pts+4.1 ptsScreen →
Price to book, small caps (< $2B)3,541+18.7 pts+0.8 pts+17.9 pts+17.6 pts+11.3 ptsScreen →
Piotroski F-score (quality)7,836+0.4 pts+3.4 pts−3.0 pts−2.7 pts−0.5 ptsScreen →
Insider buying in the prior 6 months (opportunistic buys, count)8,703+4.6 pts+0.6 pts+4.1 pts+4.1 pts+1.0 ptsScreen →
NCAV / price (net-nets)5,065+8.2 pts+6.6 pts+1.6 pts+1.3 pts−3.4 ptsScreen →
Owner-earnings 10-yr IRR (equity bond)13,036+0.4 pts−1.0 pts+1.4 pts−1.6 ptsScreen →

Insider buying is measured on a different clock (63 trading days, versus small caps) and sits in its own pieces. Same universe caveats throughout.

Where it applies today

SAVNG is an educational research publication, not a Registered Investment Adviser. Everything here is general-circulation information produced by an automated pipeline — the same for every reader — and is not personalized investment advice, an offer, or a recommendation to buy or sell any security. Any performance figure is hypothetical; past performance does not predict future results. Details.

Published by SAVNG Research. Every figure on this page is read from the study data at render time; if the study changes, the page changes with it.

← All research