Laser Focus World is an industry bedrock—first published in 1965 and still going strong. We publish original articles about cutting-edge advances in lasers, optics, photonics, sensors, and quantum technologies, as well as test and measurement, and the shift currently underway to usher in the photonic integrated circuits, optical interconnects, and copackaged electronics and photonics to deliver the speed and efficiency essential for data centers of the future.

Our 80,000 qualified print subscribers—and 130,000 12-month engaged online audience—trust us to dive in and provide original journalism you won’t find elsewhere covering key emerging areas such as laser-driven inertial confinement fusion, lasers in space, integrated photonics, chipscale lasers, LiDAR, metasurfaces, high-energy laser weaponry, photonic crystals, and quantum computing/sensors/communications. We cover the innovations driving these markets.

Laser Focus World is part of Endeavor Business Media, a division of EndeavorB2B.

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Following the Photons: A Photonics Podcast

Following the Photons: A Photonics Podcast dives deep into the fascinating world of photonics. Our weekly episodes feature interviews and discussions with industry and research experts, providing valuable perspectives on the issues, technologies, and trends shaping the photonics community.

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

3 Out-of-Favor Stocks We Find Risky

PTLO Cover Image

Rock-bottom prices don't always mean rock-bottom businesses. The stocks we're examining today have all touched their 52-week lows, creating a classic investor's dilemma: bargain opportunity or value trap?

While market timing can be an extremely profitable strategy, it has burned many investors and requires rigorous analysis - something we specialize in at StockStory. Keeping that in mind, here are three stocks where the outlook is warranted and some alternatives with better fundamentals.

Portillo's (PTLO)

One-Month Return: -16.5%

Begun as a Chicago hot dog stand in 1963, Portillo’s (NASDAQ: PTLO) is a casual restaurant chain that serves Chicago-style hot dogs and beef sandwiches as well as fries and shakes.

Why Do We Think Twice About PTLO?

  1. Weak same-store sales trends over the past two years suggest there may be few opportunities in its core markets to open new restaurants
  2. Lacking free cash flow generation means it has few chances to reinvest for growth, repurchase shares, or distribute capital
  3. Unfavorable liquidity position could lead to additional equity financing that dilutes shareholders

Portillo's is trading at $6.24 per share, or 15.7x forward P/E. Check out our free in-depth research report to learn more about why PTLO doesn’t pass our bar.

Merit Medical Systems (MMSI)

One-Month Return: -4%

Founded in 1987 and now offering over 1,700 patented products across global markets, Merit Medical Systems (NASDAQ: MMSI) manufactures and markets specialized medical devices used in minimally invasive procedures for cardiology, radiology, oncology, critical care, and endoscopy.

Why Does MMSI Worry Us?

  1. Modest revenue base of $1.43 billion gives it less fixed cost leverage and fewer distribution channels than larger companies
  2. Underwhelming 4.5% return on capital reflects management’s difficulties in finding profitable growth opportunities

At $82.69 per share, Merit Medical Systems trades at 23.9x forward P/E. Read our free research report to see why you should think twice about including MMSI in your portfolio.

MarketAxess (MKTX)

One-Month Return: -2%

Pioneering the shift from phone-based to electronic bond trading since 2000, MarketAxess (NASDAQ: MKTX) operates electronic trading platforms that enable institutional investors and broker-dealers to efficiently trade fixed-income securities like corporate and government bonds.

Why Is MKTX Not Exciting?

  1. 6.4% annual revenue growth over the last five years was slower than its financials peers
  2. Annual earnings per share growth of 1.7% underperformed its revenue over the last five years, showing its incremental sales were less profitable

MarketAxess’s stock price of $182.80 implies a valuation ratio of 23.1x forward P/E. To fully understand why you should be careful with MKTX, check out our full research report (it’s free).

Stocks We Like More

When Trump unveiled his aggressive tariff plan in April 2025, markets tanked as investors feared a full-blown trade war. But those who panicked and sold missed the subsequent rebound that’s already erased most losses.

Don’t let fear keep you from great opportunities and take a look at 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-micro-cap company Tecnoglass (+1,754% five-year return). Find your next big winner with StockStory today for free. Find your next big winner with StockStory today. 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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