TNDM Congressional Trades

5 trades by 2 members of Congress (Aug 2024 – Mar 2026)

Last updated May 09, 2026

Congress has made 5 trades in TNDM across 2 members. 4 purchases, 1 sales. Average performance vs S&P 500: -12.5%. Win rate: 25%. Updated May 09, 2026.
5
Total Trades
2
Politicians
-12.5%
Avg Alpha
25%
Win Rate

Congress members who trade TNDM

Recent TNDM trades

DatePoliticianActionAmountAlpha
2026-03-03Gilbert CisnerosBUY$1K-$15K-19.08%
2025-09-22Josh GottheimerBUY$1K-$15K+72.84%
2025-03-19Josh GottheimerSELL$1K-$15K
2025-03-04Gilbert CisnerosBUY$1K-$15K-19.38%
2024-08-05Josh GottheimerBUY$1K-$15K-84.31%

Frequently Asked Questions

Which Congress members trade TNDM?

2 members of Congress have traded TNDM. Top traders include: Josh Gottheimer, Gilbert Cisneros. See the full list below.

Is Congress buying or selling TNDM?

Congress has made 4 purchases and 1 sales of TNDM. The buy/sell ratio is 4.0x.

Do Congress TNDM trades beat the market?

Congressional trades in TNDM have a 25% win rate against the S&P 500, with an average alpha of -12.5%.

How is alpha calculated?

Alpha measures how much a trade outperformed the S&P 500 over the same holding period. For each politician, we show their dollar-weighted alpha—larger positions count more. A politician with +404% alpha on NVDA means their NVDA trades, weighted by size, beat the market by 404 percentage points.

What does the win rate mean?

Win rate is the percentage of trades that beat the S&P 500. Note that win rate treats all trades equally—a $5K trade counts the same as a $5M trade. This is why some traders show high alpha but moderate win rates (big wins, small losses) or low alpha but high win rates (consistent small wins).

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