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Felix Prehn on Mercury Systems: A Clear Look at a Rising Defense Tech Stock

Vlad

Published on September 4, 2025

Felix Prehn, the founder of Goat Academy and a former banker and investor, takes a close look at Mercury Systems (ticker: MRCY). He explains why this defense technology company has caught attention and what careful investors might want to watch.

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Mercury Systems builds secure, rugged computer hardware and integrated systems for defense, aerospace, and mission-critical tasks. In simple terms, the company makes tech components that must work in tough conditions and support fast decisions. “Mission-critical” means the technology cannot fail when it matters most, such as during military operations or in aircraft systems.

The company’s latest results were strong. Revenue came in around $340 million for the quarter. Mercury also reported a backlog of about $1.4 billion. A backlog is the total value of orders a company has already received but not yet delivered. A large backlog can give some predictability, because it suggests future sales are already lined up.

Earnings jumped sharply and beat expectations by a wide margin. This kind of surprise can push analysts to raise their views and can drive share prices higher in the short term. Prehn notes that this is what happened: the stock moved up on the positive news. He points out that Mercury is not a “loony” or junk stock. It has decent cash flow, is reasonably profitable, and is not overly expensive compared to its growth.

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Still, price action matters. Price action is the way a stock’s price moves over time. Prehn tracks clear entry points. He looks for breakouts. A breakout is when a stock moves above a past high with strong volume. Volume is the number of shares traded. Higher volume on a move can signal that many investors agree with the direction.

In Mercury’s case, he highlights the $70 level as important. If the stock moves above $70 with strong volume, that could be a sign of renewed momentum. Buying at higher prices may seem strange, but the idea is to buy strength when more money is flowing into the stock. This approach aims to avoid getting stuck during long, flat periods where a stock moves sideways. Sideways movement carries opportunity cost. Opportunity cost means missing out on better gains elsewhere while money sits in a slow position.

Prehn also reminds investors to consider risks. Defense budgets can change. Supply chains for hardware can delay deliveries. Backlogs can be canceled. Surprises happen. No stock moves in a straight line, and there are no guarantees.

He links broader themes to the case. Data centers for artificial intelligence use a lot of energy. That can affect industries like uranium and power generation, which in turn shape investor interest in related technologies. These themes do not decide Mercury’s results by themselves, but they do create currents in the market that can support defense and computing infrastructure.

Key points to remember:

  • Business: Defense-grade, secure computing hardware and systems.
  • Quality signals: Solid cash flow, profits, and a large backlog.
  • Recent results: Strong revenue and earnings beat; analysts turning more positive.
  • Technical focus: Watch $70 as a breakout level; look for high volume on moves.
  • Risk view: Budget shifts, supply constraints, and execution remain important.

Prehn’s style is simple: understand what the company makes, check the financial health, and then let the price confirm interest from other investors. For many, that approach can make stock selection clearer and more disciplined.

Those who want to learn more about Felix Prehn and his work can read about him here: Felix Prehn Goat Academy.