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Data as of 2026-09-29
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Doris Matsui: stock trades filed in Congress

Every stock trade Doris Matsui has filed, when each one became public, how long the filing took, and how the buys did against the S&P 500 once anyone could have acted on them.

Key Facts

  • Doris Matsui is a Democrat member of the US House of Representatives for CA.
  • Doris Matsui filed 16 stock trades between 2021-02-10 (10 February 2021) and 2026-01-12 (12 January 2026): 10 buys and 6 sells.
  • The disclosed dollar ranges add up to roughly $11M, counting each range at its midpoint.
  • The median trade was filed 17 days after it happened, and 19% of trades were filed after the 45 day deadline.
  • None of Doris Matsui's buys has matured 90 days yet, so there is no return to report.
  • Data as of 2026-09-23 (23 September 2026).
Trades filed 16 10 buys, 6 sells
Est. volume $11M range midpoints
Median days to file 17
Filed late 19% after 45 days
Avg vs S&P, 90d n/a 0 scored buys
Beat the S&P n/a 90 days after entry

Would copying Doris Matsui have paid?

prices as of 2026-09-28

The result. None of Doris Matsui's buys has matured 90 days yet, so there is no return to report.

Average return of Doris Matsui's disclosed buys against the S&P 500 at 30, 90 and 180 days.
Days after entryScored buysAvg vs S&PBeat S&PEntry monthst statisticReading
30 days 0 n/a n/a n/a n/a too few trades to tell
90 days 0 n/a n/a n/a n/a too few trades to tell
180 days 0 n/a n/a n/a n/a too few trades to tell

Each buy is entered on the first trading day after it was filed. One observation counts per stock and entry day. A t statistic near 0 means the average is indistinguishable from luck; above about 2 or below about -2 it is unlikely to be chance.

A return curve needs at least 10 scored buys. Doris Matsui does not have enough yet.

Most traded stocks

  1. NU1 trade, $750K

Every filed trade

as of 2026-09-23
16 trades.
Stock trades filed by Doris Matsui, newest first. Click a heading to sort.
FiledStockTypeSizeDays to file90 day vs S&P
12 Jan 2026 US TREASURY NOTE buy 500K–1M 25 n/a
21 Nov 2023 US TREASURY NOTE sell 500K–1M 14 n/a
21 Nov 2023 US TREASURY NOTE buy 500K–1M 14 n/a
3 Nov 2023 INTRINSIC EXCHANGE GROUP INC buy 500K–1M 16 n/a
3 Nov 2023 US TREASURY NOTE sell 500K–1M 8 n/a
8 Jun 2023 US TREASURY NOTE buy 500K–1M 8 n/a
26 Apr 2023 US TREASURY NOTE buy 250K–500K 7 n/a
26 Apr 2023 US TREASURY NOTE buy 500K–1M 26 n/a
26 Apr 2023 US TREASURY NOTE buy 100K–250K 43 n/a
17 Jun 2022 INTRINSIC EXCHANGE GROUP INC buy 500K–1M 13 n/a
23 Jun 2021 NU buy 500K–1M 11 n/a
13 Feb 2021 US TREASURY NOTE sell 500K–1M 126 n/a
13 Feb 2021 US TREASURY NOTE sell 500K–1M 107 n/a
13 Feb 2021 US TREASURY NOTE buy 500K–1M 105 n/a
10 Feb 2021 US TREASURY NOTE sell 250K–500K 43 n/a
10 Feb 2021 US TREASURY NOTE sell 500K–1M 18 n/a

Size is the range Congress reports, not an exact amount. A stock with no ticker in the source is not scored. Sorting reorders the rows shown.

Frequently asked questions

How many stock trades has Doris Matsui filed?

Doris Matsui filed 16 stock trades between 2021-02-10 (10 February 2021) and 2026-01-12 (12 January 2026): 10 buys and 6 sells.

Did Doris Matsui's trades beat the market?

None of Doris Matsui's buys has matured 90 days yet, so there is no return to report. Returns are measured from the first trading day after each filing, the earliest a follower could act.

How long does Doris Matsui take to file trades?

The median trade was filed 17 days after it happened, and 19% of trades were filed after the 45 day deadline. The STOCK Act gives members 45 days to report a trade, so followers see it after the price has often moved.

Can I copy Doris Matsui's trades?

Only after the filing appears, which means buying later and at a different price than the member paid. This site scores each buy from the day after it was filed. It is information, not investment advice.

Sources: Congressional trades: STOCK Act disclosures, collected from CapitolTrades. Original filings: US House Clerk and Senate Office of Public Records. Prices: Yahoo Finance daily adjusted closes. Data as of 2026-09-23 (23 September 2026). Latest filing by Doris Matsui: 2026-01-12 (12 January 2026). About these sources.

Not investment advice. Past disclosed trades do not predict future returns. Disclosures are published late, so the trades shown are ones you could only have copied after the fact. Talk to a licensed adviser before you invest.