MarketPeel
Insider Trading Intelligence
LB

Lee C. Bollinger

GHC
DIRECTOR · GRAHAM HOLDINGS CO · CIK 0001399586
FILING MIX · LIFETIME100%/0%
BUYS
3
SELLS
0
TOTAL VALUE
$497.3K
COMPANIES
1
ACTIVE SINCE
Feb 2020
HOLDINGS NOW
1,150
AVG SELL PX
TRADE KIND
SHOWING 3 / 3
Trades · vs SPY
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Performance · forward returns vs SPY
3 backtested trades · 8 horizons
Forward-return performance of every backtestable P/S trade by Lee C. Bollinger, 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
7d3+33.33%-0.66%+0.50%-1.16%-2.35%
14d3+33.33%-5.77%-6.00%+0.23%-1.34%
30d3+33.33%-4.48%-5.00%+0.52%+1.77%
60d3+33.33%-0.16%+2.25%-2.41%-0.79%
90d3+66.67%+2.31%+4.95%-2.64%+4.59%
180d3+66.67%+29.69%+16.33%+13.36%+34.66%
1y3+100.00%+54.50%+34.13%+20.36%+16.30%
2y3+100.00%+46.44%+32.45%+13.99%+18.61%
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
GHC · 1,150 shares · as of Aug 27, 2020
02885758631,150SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2020
2020
2020
FLOW · 3 buys / 0 sellsCOVERAGE · 3 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILED
GHC
GRAHAM HOLDINGS CO
PURCHASE
350$426.00$149.1K1,150Aug 27, 2020Aug 27, 2020
GHC
GRAHAM HOLDINGS CO
PURCHASE
300$340.00$102.0K800Jul 2, 2020Jul 6, 2020
GHC
GRAHAM HOLDINGS CO
PURCHASE
500$492.41$246.2K500Feb 27, 2020Jul 6, 2020
Other insiders · GHC
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About this filer
CIK 0001399586
ROLE
Director
PRIMARY
GHC
COMPANIES
1
ACTIVE SINCE
Feb 2020
MARKETPEEL · /INSIDER/0001399586DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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