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 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 Cash-Producing Stocks We Find Risky

HTLD Cover Image

While strong cash flow is a key indicator of stability, it doesn’t always translate to superior returns. Some cash-heavy businesses struggle with inefficient spending, slowing demand, or weak competitive positioning.

Cash flow is valuable, but it’s not everything - StockStory helps you identify the companies that truly put it to work. That said, here are three cash-producing companies that don’t make the cut and some better opportunities instead.

Heartland Express (HTLD)

Trailing 12-Month Free Cash Flow Margin: 6.3%

Founded by the son of a trucker, Heartland Express (NASDAQ: HTLD) offers full-truckload deliveries across the United States and Mexico.

Why Is HTLD Risky?

  1. Customers postponed purchases of its products and services this cycle as its revenue declined by 14.2% annually over the last two years
  2. Capital intensity has ramped up over the last five years as its free cash flow margin decreased by 12.7 percentage points
  3. Eroding returns on capital from an already low base indicate that management’s recent investments are destroying value

Heartland Express’s stock price of $8.48 implies a valuation ratio of 7.8x forward EV-to-EBITDA. To fully understand why you should be careful with HTLD, check out our full research report (it’s free).

Proto Labs (PRLB)

Trailing 12-Month Free Cash Flow Margin: 13%

Pioneering the concept of online quoting and manufacturing for custom prototypes and low-volume production parts, Proto Labs (NYSE: PRLB) offers injection molding, 3D printing, and sheet metal fabrication for manufacturers in various industries.

Why Do We Think PRLB Will Underperform?

  1. Muted 2.4% annual revenue growth over the last two years shows its demand lagged behind its industrials peers
  2. Efficiency has decreased over the last five years as its operating margin fell by 7.6 percentage points
  3. Earnings per share have dipped by 9.3% annually over the past five years, which is concerning because stock prices follow EPS over the long term

Proto Labs is trading at $49.64 per share, or 33.5x forward P/E. If you’re considering PRLB for your portfolio, see our FREE research report to learn more.

MarketAxess (MKTX)

Trailing 12-Month Free Cash Flow Margin: 38.9%

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 Are We Hesitant About MKTX?

  1. Muted 6.4% annual revenue growth over the last five years shows its demand lagged behind 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

At $178.21 per share, MarketAxess trades at 22.3x forward P/E. Read our free research report to see why you should think twice about including MKTX in your portfolio.

High-Quality Stocks for All Market Conditions

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

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