Security Stocks: The Defensive Play That's Actually Growing

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Aimee Silverwood | Financial Analyst

Published: July 25, 2025

  • The Peace of Mind Portfolio targets defensive stocks benefiting from essential, non-discretionary security spending.
  • Explore security investment opportunities fueled by AI and IoT, transforming traditional protection services.
  • Benefit from stable, recurring revenue models as security firms shift to high-margin subscription services.
  • Access a growing market where physical and digital security converge, creating unique investment opportunities.

The Unexciting, Yet Potentially Rewarding, World of Security Stocks

Let’s be honest, security isn’t exactly a thrilling topic for a dinner party. It sits firmly in the category of things we pay for out of necessity, not desire. It’s the sensible shoes of the corporate world, the broccoli on the investment plate. And yet, I find myself increasingly drawn to it. In a market obsessed with the next big thing, there’s a certain quiet confidence in backing something that people will always, always need. When the economy wobbles, you might put off buying a new car, but you’re not going to cancel the alarm on your house. That, to me, is a rather compelling starting point for any investment thesis.

The Uncancellable Subscription

The core appeal of security companies is their defensive nature. Their revenue streams are often wonderfully predictable. Think about it. A business doesn't just switch off its cybersecurity or fire its security guards because of a gloomy economic forecast. If anything, uncertain times can make people feel less secure, potentially driving more spending on protection. This creates a baseline of demand that is remarkably resilient.

This isn't just theory. Look back at previous downturns, and you'll see that while other sectors were taking a beating, many security firms chugged along quite nicely. Their services are less of a discretionary purchase and more of a fundamental operational cost, like paying the electricity bill. This stability is a rare and valuable commodity for any investor looking to build a portfolio that can weather a storm or two. It’s the financial equivalent of a good, sturdy raincoat. It might not be fashionable, but you’ll be glad you have it when it starts to pour.

Not Your Grandfather's Padlock

Now, if you’re thinking this all sounds a bit dull, you’re only half right. The "boring" stability is being supercharged by a technological revolution. The old world of simple locks and clanging alarms is being replaced by smart, interconnected systems. We're talking about artificial intelligence and the Internet of Things turning a sleepy industry into a hotbed of innovation.

Companies are now developing intelligent platforms that can do more than just react to a break in, they can predict and prevent threats. Imagine an airport scanner that doesn't force you to empty your pockets but uses AI to spot threats in real time as people walk by, learning and getting smarter with every person it scans. Or a corporate security system that learns the normal patterns of a building and can flag an anomaly long before a human guard would notice. This isn't science fiction, it's happening now, and it’s creating entirely new markets and upgrade cycles.

The Beauty of Predictable Money

This tech infusion is also changing how these companies make money. The old model was simple, you sell a piece of hardware, like a camera or a lock, and that’s it. The new model is far more attractive from an investor's point of view. It’s built on recurring revenue. Think software subscriptions, cloud storage for video footage, and ongoing monitoring services.

This shift to a subscription model is a game changer. It provides companies with a steady, predictable flow of cash, which is music to an investor’s ears. It makes their finances more transparent and their future growth easier to forecast. For us, it means these companies may be better positioned to offer consistent returns or reinvest in further innovation. It’s the difference between a one hit wonder and an artist with a massive back catalogue that generates royalties year after year. Of course, picking individual winners in this evolving landscape is tricky, which is why a diversified approach, like looking into a basket of companies such as the Peace of Mind portfolio, could be a pragmatic way to gain exposure without betting the farm on a single horse. All investments carry risk, but spreading that risk is just common sense.

Deep Dive

Market & Opportunity

  • Security spending is considered essential and tends to be stable, even during economic downturns.
  • The convergence of physical and digital security creates new market opportunities as remote work accelerates.
  • The corporate security market is robust, with spending consistently growing over the past decade.
  • The residential security market shows strong growth potential, driven by accelerating smart home adoption.

Key Companies

  • NAPCO Security Technologies Inc (NSSC): Develops intelligent security platforms using machine learning to predict and prevent threats, moving beyond basic alarm systems to reduce false alarms and improve detection.
  • Allegion plc (ALLE): Provides comprehensive access control solutions, including remotely managed electronic locks that integrate with building management systems.
  • EVOLV TECHNOLOGIES HOLDINGS (EVLV): Creates AI-powered weapons detection systems that allow for a natural flow of people while screening for threats, with technology that learns and improves over time.

View the full Basket:Peace of Mind Portfolio

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Primary Risk Factors

  • Economic downturns can delay capital expenditure on expensive security systems.
  • Companies that fail to innovate quickly face risks from technological disruption.
  • Competition is intensifying, particularly from large technology companies entering the security market.
  • Regulatory changes, especially concerning privacy and surveillance, could restrict certain products.

Growth Catalysts

  • The integration of Artificial Intelligence (AI) and the Internet of Things (IoT) is driving product upgrade cycles.
  • A shift to recurring revenue models, such as software subscriptions and cloud services, provides stable, high-margin income streams.
  • Macro trends including urbanization, rising crime rates, and industry-specific regulatory requirements are driving demand.
  • The democratization of AI technology allows smaller companies to integrate intelligent features, potentially driving widespread adoption.

Investment Access

  • The Peace of Mind Portfolio on Nemo provides exposure to the security sector.
  • Access is available via fractional shares, with investments starting from $1.

All investments carry risk and you may lose money.

Recent insights

How to invest in this opportunity

View the full Basket:Peace of Mind Portfolio

15 Handpicked stocks

Frequently Asked Questions

This article is marketing material and should not be construed as investment advice. No information set out in this article be considered, as advice, recommendation, offer, or a solicitation, to buy or sell any financial product, nor is it financial, investment, or trading advice. Any references to specific financial product or investment strategy are for illustrative / educational purposes only and subject to change without notice. It is the investor’s responsibility to evaluate any prospective investment, assess their own financial situation, and seek independent professional advice. Past performance is not indicative of future results. Please refer to our Risk Disclosure.

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