A little-known stock pick by Representative Marjorie Taylor Greene is turning out to be one of the most profitable Congress trades of the year.

In April 2025, Greene made a surprising investment in Impinj (NASDAQ: PI), a small-cap firm specializing in RFID technology. 

The move raised eyebrows, considering no other member of Congress had touched the stock in years. Filings indicate that the lawmaker, a popular congressional trader, purchased PI shares worth between $1,001 and $15,000 on April 4.

At the moment, the investment is up 119.05%, outpacing the S&P 500’s 24.18% return over the same period.

Before Greene’s trade, Impinj shares had been on a steady decline, falling from above $140 to a low near $60. But shortly after her purchase, the stock staged a turnaround. As of press time, PI shares were up more than 6%, trading at $162. Year to date, the stock has gained 10%.

While it’s unclear how much Greene invested, even a modest $15,000 purchase would now be worth more than $32,000.

Why PI stock is rallying 

Part of Impinj’s recent momentum stems from its strong second-quarter results, which beat Wall Street expectations.

The company reported $97.9 million in revenue, topping estimates despite a slight decline from the same quarter last year. GAAP net income rose to $11.6 million, up from $9.9 million a year earlier, signaling strong profitability despite softer top-line growth.

It’s worth noting that Greene’s transaction was part of a series of controversial trades made during the tariff dip. At the time, the stock had collapsed in response to the Liberation Day sell-off. 

Greene made several purchases amid the broader market downturn, just days before a sharp rally triggered by President Donald Trump’s announcement of a pause on sweeping tariffs. The timing led to scrutiny over potential insider trading, though Greene maintains she is not personally in charge of her trades.

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