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

1 S&P 500 Stock with Competitive Advantages and 2 We Brush Off

CZR Cover Image

The S&P 500 (^GSPC) is often seen as a benchmark for strong businesses, but that doesn’t mean every stock is worth owning. Some companies face significant challenges, whether it’s stagnating growth, heavy debt, or disruptive new competitors.

Even among blue-chip stocks, not all investments are created equal - which is why we built StockStory to help you navigate the market. That said, here is one S&P 500 stock that could deliver good returns and two that could be in trouble.

Two Stocks to Sell:

Caesars Entertainment (CZR)

Market Cap: $5.27 billion

Formerly Eldorado Resorts, Caesars Entertainment (NASDAQ: CZR) is a global gaming and hospitality company operating numerous casinos, hotels, and resort properties.

Why Are We Cautious About CZR?

  1. Sales stagnated over the last two years and signal the need for new growth strategies
  2. Incremental sales over the last five years were much less profitable as its earnings per share fell by 10% annually while its revenue grew
  3. High net-debt-to-EBITDA ratio of 6× could force the company to raise capital at unfavorable terms if market conditions deteriorate

Caesars Entertainment’s stock price of $25.45 implies a valuation ratio of 31x forward P/E. Read our free research report to see why you should think twice about including CZR in your portfolio.

Delta (DAL)

Market Cap: $34.07 billion

One of the ‘Big Four’ airlines in the US, Delta Air Lines (NYSE: DAL) is a major global air carrier that serves both business and leisure travelers through its domestic and international flights.

Why Should You Dump DAL?

  1. Performance surrounding its revenue passenger miles has lagged its peers
  2. Estimated sales growth of 1.9% for the next 12 months implies demand will slow from its two-year trend
  3. Underwhelming 5.7% return on capital reflects management’s difficulties in finding profitable growth opportunities

At $52.53 per share, Delta trades at 8.8x forward P/E. If you’re considering DAL for your portfolio, see our FREE research report to learn more.

One Stock to Watch:

AbbVie (ABBV)

Market Cap: $348.3 billion

Born from a 2013 spinoff of Abbott Laboratories' pharmaceutical business, AbbVie (NYSE: ABBV) is a biopharmaceutical company that develops and markets medications for autoimmune diseases, cancer, neurological disorders, and other complex health conditions.

Why Could ABBV Be a Winner?

  1. Unparalleled scale of $58.33 billion in revenue gives it negotiating leverage and staying power in an industry with high barriers to entry
  2. Strong free cash flow margin of 36.6% enables it to reinvest or return capital consistently
  3. Market-beating returns on capital illustrate that management has a knack for investing in profitable ventures

AbbVie is trading at $196.78 per share, or 14.9x forward P/E. Is now the time to initiate a position? Find out in our full research report, it’s free.

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 9 Market-Beating Stocks. 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 Exlservice (+354% five-year return). Find your next big winner with StockStory today for free.

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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