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Proto Labs (PRLB): Buy, Sell, or Hold Post Q3 Earnings?

PRLB Cover Image

Proto Labs trades at $48.99 per share and has stayed right on track with the overall market, gaining 17.7% over the last six months. At the same time, the S&P 500 has returned 15.3%.

Is now the time to buy Proto Labs, or should you be careful about including it in your portfolio? Get the full stock story straight from our expert analysts, it’s free for active Edge members.

Why Do We Think Proto Labs Will Underperform?

We don't have much confidence in Proto Labs. Here are three reasons there are better opportunities than PRLB and a stock we'd rather own.

1. Long-Term Revenue Growth Disappoints

A company’s long-term sales performance can indicate its overall quality. Any business can have short-term success, but a top-tier one grows for years. Over the last five years, Proto Labs grew its sales at a sluggish 3.3% compounded annual growth rate. This fell short of our benchmark for the industrials sector.

Proto Labs Quarterly Revenue

2. EPS Trending Down

We track the long-term change in earnings per share (EPS) because it highlights whether a company’s growth is profitable.

Sadly for Proto Labs, its EPS declined by 8.7% annually over the last five years while its revenue grew by 3.3%. This tells us the company became less profitable on a per-share basis as it expanded.

Proto Labs Trailing 12-Month EPS (Non-GAAP)

3. Previous Growth Initiatives Have Lost Money

Growth gives us insight into a company’s long-term potential, but how capital-efficient was that growth? Enter ROIC, a metric showing how much operating profit a company generates relative to the money it has raised (debt and equity).

Proto Labs’s five-year average ROIC was negative 1.4%, meaning management lost money while trying to expand the business. Its returns were among the worst in the industrials sector.

Proto Labs Trailing 12-Month Return On Invested Capital

Final Judgment

We see the value of companies helping their customers, but in the case of Proto Labs, we’re out. That said, the stock currently trades at 30.3× forward P/E (or $48.99 per share). This valuation tells us it’s a bit of a market darling with a lot of good news priced in - we think other companies feature superior fundamentals at the moment. We’d recommend looking at one of our top software and edge computing picks.

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