stocksbrew

What if you had copied Judy Chu?

Democrat, CA-28

This record ended in September 2025, when everything copied had been sold. It is shown here but not ranked.

The verdict

Copying Judy Chu's reported trades from Jan 2024 until Sep 2025 would have turned $10,000 into $10,000, less than the S&P 500 did.

The S&P 500 turned the same $10,000 into $13,494 over the same days. The copy returned 0.0% a year against +20.4% for the S&P 500, 20 points a year behind. Its worst fall was 0.0%, from Jan 22, 2024 to Jan 22, 2024. The S&P 500's worst fall over the test was 18.8%.

Copied Jan 22, 2024 to Sep 2, 2025 · House trade reports and daily closes

What $10,000 became

Closes to Sep 2, 2025
  • Copying Judy Chu$10,000
  • S&P 500$13,494
  • Kept every buy and ignored their sales$10,000
Jan 22, 2024 to Sep 2, 2025

If you had kept every buy and ignored their sales, you would have ended at about the same place, $10,000. The test stops on Sep 2, 2025, when everything copied had been sold, so there was nothing left to follow.

$10,000 copied
$10,000
0.0%, 0.0% a year
In the S&P 500
$13,494
+34.9%, +20.4% a year
Kept every buy
$10,000
Their sales ignored
Worst fall
0.0%
Jan 22, 2024 to Jan 22, 2024
Trades
2
1 buys, 1 sales

The moves that made the most

No position made money for the copy.

The moves that cost the most

No position lost money for the copy.

Year by year

YearCopyS&P 500Gap, pts
2024from Jan 20240.0%+22.8%−22.8
2025to Sep 20250.0%+9.9%−9.9

A historical test on paper, before costs and taxes. It trades at the close of the first trading day after each report comes out, up to 45 days after the trade, sizes from reported ranges, and skips delisted companies, which flatters it.

After hours

That's a wrap.

17hrs07min39sec

Market opens Friday, Nov 13 at 9:30 AM ET