Five years ago, Power Solutions International $PSIX shares were trading around $4.53 each. Today, it's closed at $61.53—a strong 1,330% gain that comes from its focus on engines and power systems for industrial, standby, and alternative fuel uses, with growing demand in data centers and clean energy shifts. The chart shows a quiet period through 2023, then steady growth in 2024 and a sharp push in 2025, with a 52-week high of $121.47 marking the recent top speed.

In simple terms, the compound annual growth rate (CAGR) is 68.42%. That's the average yearly boost—calculated by raising the total growth factor to the 1/5 power and subtracting 1. It means growing your money by nearly 70% each year, on average.

Dollar-cost averaging (DCA) keeps the engine running smooth: Invest $500 every month for five years, totaling $30,000.

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This buys more shares on slower days and fewer on fast ones, balancing the revs. Projecting forward at the same historical pace, with a monthly growth rate of about 4.44% from $61.53, your shares build power over time.

After 60 months, your total could reach $147,998. That's a gain of $117,998—a 393% return on your investment. The early buys get the biggest torque from compounding, while later ones still add to the drive.

This is based on the past, which isn't a sure road ahead—power system stocks can shift with industrial demand or fuel trends, but a P/E ratio of 11.71 shows reasonable pricing, and a $1.42B market cap gives room to grow.

With that 52-week high of $121.47 in view, PSIX has momentum. If DCA's your steady throttle, it could turn your $500 habit into a high-performance payoff by 2031.

Rev it up?