undamentalytics Newsletter

Congress: members

Barbara J Comstock

Backtest from 21 Feb 2017 to 2 Nov 2026 · weekly · hypothetical

Watch this strategy
Return a year
+25.0%
S&P 500 +14.5%
Last 12 months
+36.2%
S&P 500 +12.1%
Sharpe ratio
0.98
S&P 500 0.72
Biggest drop
−30.9%
S&P 500 −31.8%
$10.0k$20.0k$40.0k$80.0k 20172019202120232025 $87.3k$37.2k
Barbara J ComstockS&P 500 $10,000 in Barbara J Comstock from 21 Feb 2017 against the S&P 500 (total return) over the same dates, marked weekly, log scale. Hypothetical: before taxes and trading costs.

About

Mirrors the disclosed stock holdings of Rep. Barbara J Comstock (Independent, VA) and family. It buys on the first trading day after each report is filed, sized by the middle of the value band reported, starts from the holdings listed in the member's annual disclosure report once that report is public, and holds each position until a sale is reported. Call options count as the stock until they expire. Members often report weeks or months late, so this is what a follower could actually have done.

Barbara J Comstock's trades →

Key statistics

MeasureStrategyS&P 500
Return a year (compound)+25.0%+14.5%
Total return+773%+272%
Last 12 months+36.2%+12.1%
Last 3 months+5.8%—
Last month−6.8%—
This year so far+36.2%—
Volatility a year22.6%17.2%
Sharpe ratio0.980.72
Biggest drop−30.9%−31.8%
Beta to the S&P 5001.111.00
Alpha a year (t-statistic)+8.4% (2.19)—
Share of weeks up59%—

Sharpe ratio uses returns above the 3-month Treasury bill rate. Alpha is the yearly return left after allowing for the strategy's exposure to the S&P 500 (CAPM); a t-statistic below about 2 means it cannot be told apart from luck. 43 reported trades were copied.

Insights

CompanyWeightHeld sinceReturn since
AAPL38.8%21 Feb 2017+968.0%
MU23.6%17 Jul 2017+2623.8%
MSFT14.0%16 Oct 2017+632.6%
AMZN6.2%20 Mar 2018+213.6%
PANW5.0%7 Aug 2018+916.1%
MA3.9%12 Jun 2018+245.4%
NFLX2.6%16 Oct 2017+209.7%
META2.2%2 Jan 2019+354.4%
HPE1.8%20 Mar 2018+260.7%
NOC1.1%9 Aug 2018+118.0%
PYPL0.4%4 Jan 2018−22.8%
BA0.3%20 Dec 2017−38.3%
INTC0.2%7 Aug 2018+43.7%
GRPN0.0%20 Apr 2018−82.8%
PeriodReturn a yearS&P 500SharpeS&P 500Biggest dropBetaAlpha (t)
Whole backtest21 Feb 2017 to 2 Nov 2026+25.0%+14.5%0.980.72−30.9%1.11+8.4% (2.19)
2018 onwards5 Jan 2018 to 2 Nov 2026+24.0%+13.9%0.920.66−30.9%1.11+8.2% (2.09)
Last three years3 Nov 2023 to 2 Nov 2026+31.6%+21.8%1.211.16−21.5%1.24+5.0% (0.75)
Last year7 Nov 2025 to 2 Nov 2026+38.3%+14.2%1.400.84−9.3%1.42+16.4% (1.18)
DateCompanyAction
2 Jan 2019METABought
9 Aug 2018NOCBought
7 Aug 2018PANWBought
7 Aug 2018INTCBought
12 Jun 2018MABought
20 Apr 2018GRPNBought
20 Mar 2018HPEBought
20 Mar 2018AMZNBought
4 Jan 2018PYPLBought
4 Jan 2018NRGBought
20 Dec 2017BABought
16 Oct 2017NFLXBought
16 Oct 2017MSFTBought
16 Oct 2017ALNYBought
17 Jul 2017MUBought
21 Feb 2017AAPLBought

Dated on the first trading day after the report was filed, when a follower could have acted.

DateCompanyAction
20 Mar 2018NRGSold
20 Mar 2018ALNYSold

Dated on the first trading day after the report was filed, when a follower could have acted.

Backtests are hypothetical and use today's listed companies only, which flatters results. Past performance does not predict future returns. This is research, not investment advice. How we backtest