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Editorial Advisory Board

  • Professor Andrea M. Armani, University of Southern California
  • Ruti Ben-Shlomi, Ph.D., LightSolver
  • James Butler, Ph.D., Hamamatsu
  • Natalie Fardian-Melamed, Ph.D., Columbia University
  • Justin Sigley, Ph.D., AmeriCOM
  • Professor Birgit Stiller, Max Planck Institute for the Science of Light, and Leibniz University of Hannover
  • Professor Stephen Sweeney, University of Glasgow
  • Mohan Wang, Ph.D., University of Oxford
  • Professor Xuchen Wang, Harbin Engineering University
  • Professor Stefan Witte, Delft University of Technology

2 Reasons to Like PI and 1 to Stay Skeptical

PI Cover Image

Over the last six months, Impinj’s shares have sunk to $117.97, producing a disappointing 17.9% loss - a stark contrast to the S&P 500’s 6.9% gain. This may have investors wondering how to approach the situation.

Given the weaker price action, is now the time to buy PI? Find out in our full research report, it’s free.

Why Does Impinj Spark Debate?

Founded by Caltech professor Carver Mead and one of his students Chris Diorio, Impinj (NASDAQ: PI) is a maker of radio-frequency identification (RFID) hardware and software.

Two Things to Like:

1. Skyrocketing Revenue Shows Strong Momentum

A company’s long-term sales performance is one signal of its overall quality. Any business can put up a good quarter or two, but many enduring ones grow for years. Luckily, Impinj’s sales grew at an excellent 16.8% compounded annual growth rate over the last five years. Its growth surpassed the average semiconductor company and shows its offerings resonate with customers. Semiconductors are a cyclical industry, and long-term investors should be prepared for periods of high growth followed by periods of revenue contractions.Impinj Quarterly Revenue

2. Increasing Free Cash Flow Margin Juices Financials

If you’ve followed StockStory for a while, you know we emphasize free cash flow. Why, you ask? We believe that in the end, cash is king, and you can’t use accounting profits to pay the bills.

As you can see below, Impinj’s margin expanded by 23.7 percentage points over the last five years. We have no doubt shareholders would like to continue seeing its cash conversion rise as it gives the company more optionality. Impinj’s free cash flow margin for the trailing 12 months was 12.2%.

Impinj Trailing 12-Month Free Cash Flow Margin

One Reason to be Careful:

Operating Losses Sound the Alarms

Operating margin is an important measure of profitability as it shows the portion of revenue left after accounting for all core expenses – everything from the cost of goods sold to advertising and wages. It’s also useful for comparing profitability across companies with different levels of debt and tax rates because it excludes interest and taxes.

Impinj’s high expenses have contributed to an average operating margin of negative 8.4% over the last two years. Unprofitable semiconductor companies require extra attention because they could get caught swimming naked when the tide goes out.

Impinj Trailing 12-Month Operating Margin (GAAP)

Final Judgment

Impinj’s merits more than compensate for its flaws. With the recent decline, the stock trades at 73.1× forward P/E (or $117.97 per share). Is now a good time to initiate a position? See for yourself in our full research report, it’s free.

Stocks We Like Even More Than Impinj

Donald Trump’s victory in the 2024 U.S. Presidential Election sent major indices to all-time highs, but stocks have retraced as investors debate the health of the economy and the potential impact of tariffs.

While this leaves much uncertainty around 2025, a few companies are poised for long-term gains regardless of the political or macroeconomic climate, like our Top 5 Strong Momentum Stocks for this week. This is a curated list of our High Quality stocks that have generated a market-beating return of 183% over the last five years (as of March 31st 2025).

Stocks that made our list in 2020 include now familiar names such as Nvidia (+1,545% between March 2020 and March 2025) as well as under-the-radar businesses like the once-small-cap company Comfort Systems (+782% five-year return). Find your next big winner with StockStory today.

StockStory is growing and hiring equity analyst and marketing roles. Are you a 0 to 1 builder passionate about the markets and AI? See the open roles here.

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