How to build a trading strategy with congressional disclosures

Copy Nancy Pelosi's disclosed purchases

Test window

Oct 2021 – Sep 2026

Starting balance

$100,000

Fee per trade

0.1%

Benchmark

SPY

This is the result. The four steps below show how the strategy was built and tested.

1. Describe the idea to Aurora

A prompt like this one describes the strategy in plain English.

“Build a portfolio that follows these rules. Universe: all U.S. stocks. Keep stocks Nancy Pelosi disclosed buying (stocks or options) in the last 90 days. Weight each position by the high end of her disclosed purchase dollars over those 90 days. Rebalance every trading session. Backtest it between Oct 1, 2021 and Sep 30, 2026 with $100,000 to start, a 0.1% fee on each trade, SPY as the benchmark.”

2. Check the rules Aurora writes

These are the exact rules the backtest ran.

1. Rule 1

   Universe: all U.S. stocks.

2. Rule 2

   Keep stocks Nancy Pelosi disclosed buying (stocks or options) in the last 90 days.

3. Rule 3

   Weight each position by the high end of her disclosed purchase dollars over those 90 days.

4. Rule 4

   Rebalance every trading session.

3. Backtest it against SPY after fees

It held only 21 stocks over five years, so the 59.8% fall is the cost of that concentration.

Strategy return

+77.4%

SPY return

+88.5%

Largest fall

−59.8%

Sharpe ratio

0.49

Closed trades

2,469

Fees paid

$4,997

4. Test it on dates it never saw

A walk-forward test runs the frozen rules on later dates they never saw. See the same rules tested on dates they never saw

Aurora's research on this strategy is public. Read the Aurora research run

The results describe historical observations. They do not establish live trading performance.

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