Congress Watch

Backtest copying a member of Congress

Pick a politician and see what would have happened if you had bought and sold the same stocks a few days after each filing became public. The simulation only uses information that was public at that moment.

Angus S King: 2026-01-01 to 2026-11-10

$10,000 invested became $9,918 by copying Angus S King, against $10,799 in the S&P 500: 8.8 percentage points behind the index.

-0.8%copy portfolio return
+8.0%S&P 500 return
-1.9%worst drop
3trades executed

On average 5% of the money was invested. On the 198 days stocks were held, the copied holdings returned -15.0% a year against +8.4% for the S&P 500 over the same days.

Value of the portfolio copying Angus S King versus the S&P 5009,1289,73110,33410,93711,5402026-012026-062026-11Copy portfolioS&P 500 (SPY)Buy HON, 2026-01-29Buy LLY, 2026-01-29Sell LLY, 2026-03-27

Portfolio value (teal) and the same deposits in SPY (red). Green dots are copied purchases and red dots copied sales (at most 300 are drawn). Returns are time-weighted, so deposits do not count as gains.

Gain or loss by month

Monthly return copying Angus S KingJanFebMarAprMayJunJulAugSepOctNovDec2026Jan 2026: +0.2%Feb 2026: +0.5%Mar 2026: -1.2%Apr 2026: -0.3%May 2026: +0.6%Jun 2026: -0.6%Jul 2026: +0.4%Aug 2026: -0.6%Sep 2026: -0.1%Oct 2026: +0.2%Nov 2026: +0.0%Dec 2026: no activity

Monthly return of the whole portfolio, cash included. Green months gained, red months lost; darker means a bigger move.

Copied trades by month

Copied trades per month, Angus S KingJanFebMarAprMayJunJulAugSepOctNovDec2026Jan 2026: 2 tradesFeb 2026: 0 tradesMar 2026: 1 tradeApr 2026: 0 tradesMay 2026: 0 tradesJun 2026: 0 tradesJul 2026: 0 tradesAug 2026: 0 tradesSep 2026: 0 tradesOct 2026: 0 tradesNov 2026: 0 tradesDec 2026: no activity

Buys and sells the simulation executed each month; darker means more.

Biggest winners and losers

Best positionsProfit
HON$-19
LLY$-63
Worst positionsProfit
LLY$-63
HON$-19

What was left out

The latest disclosure is dated 2026-11-05. Trades filed after that date are not in the dataset yet.

HON: no price bar on 2 trading day(s) while held; valued at the last close.

9 copy order(s) were rejected; see the transaction log for each reason.

114 disclosed trade(s) were excluded: 64 executes before the backtest start; 32 bond or other debt, not an ordinary stock or ETF; 13 unsupported asset type; 3 no usable ticker.

Hypothetical result with a 3-day delay, 5 basis points slippage, no fees and no leverage. See the methodology. Not investment advice.