undamentalytics Newsletter

Congress: members

Roger Williams

Backtest from 2 Aug 2016 to 2 Nov 2026 · weekly · hypothetical

Watch this strategy
Return a year
+22.0%
S&P 500 +14.8%
Last 12 months
+28.9%
S&P 500 +12.1%
Sharpe ratio
0.88
S&P 500 0.75
Biggest drop
−33.1%
S&P 500 −31.8%
$10.0k$20.0k$40.0k$80.0k 201620182020202220242026 $76.7k$41.3k
Roger WilliamsS&P 500 $10,000 in Roger Williams from 2 Aug 2016 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. Roger Williams (Republican, TX) 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.

Roger Williams's trades →

Key statistics

MeasureStrategyS&P 500
Return a year (compound)+22.0%+14.8%
Total return+667%+313%
Last 12 months+28.9%+12.1%
Last 3 months+10.4%—
Last month+5.9%—
This year so far+29.1%—
Volatility a year22.6%16.9%
Sharpe ratio0.880.75
Biggest drop−33.1%−31.8%
Beta to the S&P 5000.841.00
Alpha a year (t-statistic)+9.2% (1.67)—
Share of weeks up58%—

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. 23 reported trades were copied.

Insights

CompanyWeightHeld sinceReturn since
CVX50.3%2 Aug 2016+253.8%
FANG13.3%14 Aug 2020+458.8%
BRK.B10.9%15 May 2025+9.5%
NVDA10.9%15 May 2025+52.4%
LLY3.2%16 May 2023+229.3%
PG2.9%2 Aug 2016+150.1%
JPM2.6%16 May 2023+174.6%
META2.3%16 May 2023+158.2%
GOOGL2.2%16 May 2023+139.4%
STLA1.1%16 May 2022−57.9%
WAB0.2%16 May 2023+201.6%
PFE0.2%14 Aug 2020+15.9%
PeriodReturn a yearS&P 500SharpeS&P 500Biggest dropBetaAlpha (t)
Whole backtest2 Aug 2016 to 2 Nov 2026+22.0%+14.8%0.880.75−33.1%0.84+9.2% (1.67)
2018 onwards5 Jan 2018 to 2 Nov 2026+23.9%+13.9%0.890.66−33.1%0.85+11.4% (1.82)
Last three years3 Nov 2023 to 2 Nov 2026+21.2%+21.8%1.021.16−17.2%0.57+6.7% (0.85)
Last year7 Nov 2025 to 2 Nov 2026+31.1%+14.2%2.030.84−6.8%−0.03+23.9% (2.02)
DateCompanyAction
16 Jan 2026RTXBought
15 May 2025NVDABought
15 May 2025BRK.BBought
16 May 2023WABBought
16 May 2023VTRSBought
16 May 2023TFCBought
16 May 2023SBFMBought
16 May 2023NVDABought
16 May 2023NOVBought
16 May 2023METABought
16 May 2023LLYBought
16 May 2023JPMBought
16 May 2023GOOGLBought
16 May 2022STLABought
16 May 2022HOODBought
16 May 2022DISBought
16 May 2022CHPTBought
16 May 2022AALBought
14 Aug 2020PFEBought
14 Aug 2020FANGBought
14 Aug 2020DVNBought
1 Aug 2019NVDABought
1 Aug 2019METABought
15 May 2017TGTBought
15 May 2017GEBought

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

DateCompanyAction
12 Aug 2026RTXSold
15 May 2025VTRSSold
15 May 2025TFCSold
15 May 2025SBFMSold
15 May 2025NOVSold
15 May 2025CHPTSold
15 May 2025AALSold
13 Jun 2024NVDASold
16 May 2023HOODSold
16 May 2023DVNSold
16 May 2023DISSold
13 Aug 2021NVDASold
13 Aug 2021GESold
13 Aug 2021DISSold
14 Aug 2020METASold
1 Aug 2019TGTSold

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