undamentalytics Newsletter

Congress: members

Suzan K. DelBene

Backtest from 20 Jan 2015 to 2 Nov 2026 · weekly · hypothetical

Watch this strategy
Return a year
+12.3%
S&P 500 +13.7%
Last 12 months
+3.9%
S&P 500 +12.1%
Sharpe ratio
0.59
S&P 500 0.73
Biggest drop
−29.0%
S&P 500 −31.8%
$10.0k$20.0k$40.0k 201520172019202120232025 $45.4k$39.4k
Suzan K. DelBeneS&P 500 $10,000 in Suzan K. DelBene from 20 Jan 2015 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. Suzan K. DelBene (Democrat, WA) 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.

Suzan K. DelBene's trades →

Key statistics

MeasureStrategyS&P 500
Return a year (compound)+12.3%+13.7%
Total return+294%+354%
Last 12 months+3.9%+12.1%
Last 3 months+1.1%—
Last month+0.3%—
This year so far+3.3%—
Volatility a year19.0%16.5%
Sharpe ratio0.590.73
Biggest drop−29.0%−31.8%
Beta to the S&P 5000.571.00
Alpha a year (t-statistic)+4.4% (0.91)—
Share of weeks up76%—

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. 95 reported trades were copied.

Insights

No positions at the latest rebalance.

PeriodReturn a yearS&P 500SharpeS&P 500Biggest dropBetaAlpha (t)
Whole backtest20 Jan 2015 to 2 Nov 2026+12.3%+13.7%0.590.73−29.0%0.57+4.4% (0.91)
2018 onwards5 Jan 2018 to 2 Nov 2026+12.2%+13.9%0.650.66−25.7%0.46+4.4% (1.02)
Last three years3 Nov 2023 to 2 Nov 2026+4.6%+21.8%−0.821.160.0%0.00−0.1% (−1.40)
Last year7 Nov 2025 to 2 Nov 2026+3.9%+14.2%−1.150.840.0%0.00−0.1% (−1.01)
DateCompanyAction
15 Sept 2020MSFTBought
16 Jan 2020MSFTBought
17 Jul 2017MSFTBought
11 Jan 2017MSFTBought
17 May 2016PCARBought
17 May 2016MYRGBought
17 May 2016CSIQBought
18 Apr 2016MSFTBought
14 Mar 2016TRMBBought
15 Jan 2016SEDGBought
15 Jan 2016CGNXBought
14 Dec 2015FLSBought
15 Sept 2015MSFTBought
11 Aug 2015XYLBought
11 Aug 2015WTSBought
11 May 2015ITRIBought
17 Apr 2015WMSBought
20 Jan 2015ERIIBought

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

DateCompanyAction
18 Oct 2021MSFTSold
11 Aug 2020MSFTSold
16 Sept 2019MSFTSold
16 May 2019PCARSold
16 May 2018CSIQSold
6 Apr 2017MSFTSold
17 Oct 2016MSFTSold
14 Jul 2016XYLSold
14 Jul 2016WTSSold
14 Jul 2016TRMBSold
14 Jul 2016SEDGSold
14 Jul 2016FLSSold
16 Jun 2016MYRGSold
17 May 2016CGNXSold
18 Apr 2016ITRISold
14 Mar 2016WMSSold
14 Mar 2016MSFTSold
17 Apr 2015ERIISold

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