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.

Ed Case: 2026-01-01 to 2026-11-09

$10,000 invested became $10,416 by copying Ed Case, against $10,799 in the S&P 500: 3.8 percentage points behind the index.

+4.2%copy portfolio return
+8.0%S&P 500 return
-2.2%worst drop
4trades executed

On average 12% of the money was invested. On the 165 days stocks were held, the copied holdings returned +58.6% a year against +16.9% for the S&P 500 over the same days.

Value of the portfolio copying Ed Case versus the S&P 5009,1289,73310,33810,94311,5482026-012026-062026-11Copy portfolioS&P 500 (SPY)Buy AAPL, 2026-03-17Buy AAPL, 2026-04-09Buy AAPL, 2026-06-03Buy AAPL, 2026-08-21

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 Ed CaseJanFebMarAprMayJunJulAugSepOctNovDec2026Jan 2026: +0.0%Feb 2026: +0.0%Mar 2026: +0.0%Apr 2026: +0.6%May 2026: +1.6%Jun 2026: -1.3%Jul 2026: +1.1%Aug 2026: +0.5%Sep 2026: +1.0%Oct 2026: +0.7%Nov 2026: -0.1%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, Ed CaseJanFebMarAprMayJunJulAugSepOctNovDec2026Jan 2026: 0 tradesFeb 2026: 0 tradesMar 2026: 1 tradeApr 2026: 1 tradeMay 2026: 0 tradesJun 2026: 1 tradeJul 2026: 0 tradesAug 2026: 1 tradeSep 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
AAPL$416
Worst positionsProfit
AAPL$416

What was left out

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

AAPL: no price bar on 1 trading day(s) while held; valued at the last close.

10 disclosed trade(s) were excluded: 6 executes before the backtest start; 4 unsupported asset type.

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