
NN has been on fire lately. In the past six months alone, the company’s stock price has rocketed 145%, reaching $3.78 per share. This was partly thanks to its solid quarterly results, and the run-up might have investors contemplating their next move.
Is there a buying opportunity in NN, or does it present a risk to your portfolio? Dive into our full research report to see our analyst team’s opinion, it’s free.
Why Do We Think NN Will Underperform?
We’re glad investors have benefited from the price increase, but we’re sitting this one out for now. Here are three reasons you should be careful with NNBR, plus one stock we’d rather own.
1. Revenue Spiraling Downwards
A company’s long-term sales performance can indicate its overall quality. Any business can put up a good quarter or two, but many enduring ones grow for years. NN’s demand was weak over the last five years as its sales fell at a 1.1% annual rate. This wasn’t a great result and is a sign of poor business quality.

2. Breakeven Free Cash Flow Limits Reinvestment Potential
Free cash flow isn’t a prominently featured metric in company financials and earnings releases, but we think it’s telling because it accounts for all operating and capital expenses, making it tough to manipulate. Cash is king.
NN broke even from a free cash flow perspective over the last five years, giving the company limited opportunities to return capital to shareholders.

3. New Investments Fail to Bear Fruit as ROIC Declines
We like to invest in businesses with high returns, but the trend in a company’s ROIC can also be an early indicator of future business quality.
Unfortunately, NN’s ROIC has decreased over the last few years. Paired with its already low returns, these declines suggest its profitable growth opportunities are few and far between.

Final Judgment
We cheer for all companies making their customers lives easier, but in the case of NN, we’ll be cheering from the sidelines. Following the recent rally, the stock trades at 6× forward EV-to-EBITDA (or $3.78 per share). This valuation multiple is fair, but we don’t have much confidence in the company. There are better investments elsewhere. Let us point you toward a dominant aerospace business that has perfected its M&A strategy.
High-Quality Stocks for All Market Conditions
ONE MORE THING: Top 5 Growth Stocks. The biggest stock winners almost always had one thing in common before they ran. Revenue growing like crazy. Meta. CrowdStrike. Broadcom. Our AI flagged all three. They returned 315%, 314%, and 455%, respectively.
Find out which 5 stocks it’s flagging this month — FREE. Get Our Top 5 Growth Stocks for Free HERE.
Stocks that have made our list include now familiar names such as Nvidia (+1,460% between June 2020 and June 2025) as well as under-the-radar businesses like the once-small-cap company Exlservice (+271% between June 2020 and June 2025). Find your next big winner with StockStory today.