17 of 56 insider buys from the week of Aug 3 beat the S&P 500 over 90 days
Three things the SEC filings said this week, measured the same way every week and kept as a permanent record. Written by rules from our data, not by an AI model. History, not a prediction.
1 · The 90-day report card
Every open-market insider purchase filed Aug 3, 2026 to Aug 9, 2026, now with a full 90 days of results.
Best
The biggest buys that week: DCX $8.1M (−98.9%), GSHD $2.2M (−22.9%), NXTC $1.6M (+32.6%), CVNA $1.5M (+6.3%), HOG $983K (+31.5%).
2 · This week's buying
Filed Oct 27, 2026 to Nov 2, 2026.
3 · Question of the week
Are buys filed on a Friday any different?
Not really. 46% vs 46%: less than 2 points apart.
| Beat the S&P 500 over 90 days | filed on a Friday | filed Monday to Thursday |
|---|---|---|
| All years since 2020 | 46% (1,413 of 3,090) | 46% (6,323 of 13,809) |
| 2020 to March 2023 | 48% (720 of 1,495) | 47% (3,142 of 6,689) |
| April 2023 to now | 43% (693 of 1,595) | 45% (3,181 of 7,120) |
A pattern only counts here if it points the same way in both halves of the data. Median result and every case are in the Backtester. Survivorship caveat: delisted stocks often lack prices, which flatters these numbers a little.
What would you check next?
Every number above can be checked against the SEC filings. Disagree with a result, or want a question tested? Tell us and we'll run it in a future week.
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