MarketPeel
Insider Trading Intelligence
RC

Ruben Calderon

JFB
CHIEF FINANCIAL OFFICER · JFB CONSTRUCTION HOLDINGS · CIK 0002061362
FILING MIX · LIFETIME100%/0%
BUYS
2
SELLS
0
TOTAL VALUE
$29.0K
COMPANIES
1
ACTIVE SINCE
Jun 2025
HOLDINGS NOW
26,550
AVG SELL PX
TRADE KIND
SHOWING 2 / 2
Trades · vs SPY
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Performance · forward returns vs SPY
1 backtested trades · 8 horizons · 2 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Ruben Calderon, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d1+0.00%-10.64%-2.35%-8.29%-8.29%
14d1+0.00%-12.26%+0.41%-12.67%-12.67%
30d1+0.00%-4.42%+0.94%-5.36%-5.36%
60d1+100.00%+108.90%+0.93%+107.97%+107.97%
90d1+100.00%+9.40%-1.51%+10.91%+10.91%
180d1+0.00%-30.68%+7.25%-37.93%-37.93%
1y1(1 pending)
2y1(1 pending)
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
JFB · 26,550 shares · as of Dec 10, 2025
06,63813,27519,91326,550SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2025
2025
2025
FLOW · 2 buys / 0 sellsCOVERAGE · 3 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
JFB
JFB CONSTRUCTION HOLDINGS
PURCHASE
Chief Financial Officer
1,550$18.72$29.0K26,550Dec 10, 2025Dec 10, 2025View →
JFB
JFB CONSTRUCTION HOLDINGS
PURCHASEGRANT
Stock grant
25,00025,000Jun 30, 2025Aug 20, 2025View →
Other insiders · JFB
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About this filer
CIK 0002061362
ROLE
Chief Financial Officer
PRIMARY
JFB
COMPANIES
1
ACTIVE SINCE
Jun 2025
MARKETPEEL · /INSIDER/0002061362DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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