undamentalytics Newsletter

Congress: members

Michael K. Simpson

Backtest from 16 Mar 2017 to 2 Nov 2026 · weekly · hypothetical

Watch this strategy
Return a year
+4.3%
S&P 500 +14.5%
Last 12 months
−11.8%
S&P 500 +12.1%
Sharpe ratio
0.19
S&P 500 0.72
Biggest drop
−57.0%
S&P 500 −31.8%
$10.0k$20.0k$40.0k 20172019202120232025 $36.9k$15.0k
Michael K. SimpsonS&P 500 $10,000 in Michael K. Simpson from 16 Mar 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. Michael K. Simpson (Republican, ID) 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.

Michael K. Simpson's trades →

Key statistics

MeasureStrategyS&P 500
Return a year (compound)+4.3%+14.5%
Total return+50%+269%
Last 12 months−11.8%+12.1%
Last 3 months−17.1%—
Last month−2.6%—
This year so far−19.1%—
Volatility a year26.4%17.3%
Sharpe ratio0.190.72
Biggest drop−57.0%−31.8%
Beta to the S&P 5001.131.00
Alpha a year (t-statistic)−9.0% (−1.57)—
Share of weeks up54%—

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. 20 reported trades were copied.

Insights

CompanyWeightHeld sinceReturn since
SF100.0%15 May 2025+7.3%
PeriodReturn a yearS&P 500SharpeS&P 500Biggest dropBetaAlpha (t)
Whole backtest16 Mar 2017 to 2 Nov 2026+4.3%+14.5%0.190.72−57.0%1.13−9.0% (−1.57)
2018 onwards5 Jan 2018 to 2 Nov 2026+1.5%+13.9%0.090.66−57.0%1.13−11.0% (−1.80)
Last three years3 Nov 2023 to 2 Nov 2026+5.6%+21.8%0.161.16−31.7%1.13−14.0% (−1.23)
Last year7 Nov 2025 to 2 Nov 2026−14.4%+14.2%−0.600.84−22.4%0.95−25.2% (−1.05)
DateCompanyAction
15 May 2025SFBought
15 May 2023USBBought
24 May 2022VIVBought
24 May 2022PDSBought
24 May 2022ERICBought
24 May 2022BHPBought
2 Jun 2020UALBought
2 Jun 2020PSXBought
2 Jun 2020CIMBought
2 Jun 2020BABought
8 May 2019TROWBought
15 May 2017VIVBought
15 May 2017PDSBought
15 May 2017ERICBought
15 May 2017BHPBought
16 Mar 2017TROWBought

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

DateCompanyAction
15 May 2025TROWSold
6 May 2024USBSold
15 May 2023VIVSold
15 May 2023PDSSold
15 May 2023ERICSold
15 May 2023BHPSold
13 Aug 2021UALSold
13 Aug 2021PSXSold
13 Aug 2021CIMSold
13 Aug 2021BASold
2 Feb 2021VIVSold
2 Feb 2021PDSSold
2 Feb 2021ERICSold
2 Feb 2021BHPSold
7 May 2018TROWSold

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