What happened Shares of machining, injection-molding, and 3D printing company Proto Labs (NYSE: PRLB) had a volatile day Tuesday. After losing more than 16%, the stock halved those losses, ending today 7.4% lower. So what The company didn't put out any specific news, but the stock is more likely caught in the overall rotation out of higher-growth tech names, and into cyclical and recovery stocks. Shares of Proto Labs are down almost 40% from recent highs near the end of January. But the drop just brings shares to about breakeven year to date. Image source: Getty Images. Now what Proto Labs continues to recover from a difficult business environment in 2020. Revenue for its fourth quarter 2020 was down slightly year over year. Full-year revenue was also lower compared to 2019. But the company still generated $107 million in cash from operations for the year. CFO John Way said in the earnings release, "2020 was the most difficult backdrop our business has ever faced, yet our digital manufacturing model continued its strong cash flow generation." That cash flow enabled the company to grow its cash position by about 10% from the previous quarter, ending the year with $221 million in cash and investments. The most recent drop in shares seems more related to the market shift away from high tech growth stocks. Today appears to be no exception. 10 stocks we like better than Proto LabsWhen investing geniuses David and Tom Gardner have a stock tip, it can pay to listen. After all, the newsletter they have run for over a decade, Motley Fool Stock Advisor, has tripled the market.* David and Tom just revealed what they believe are the ten best stocks for investors to buy right now... and Proto Labs wasn't one of them! That's right -- they think these 10 stocks are even better buys. See the 10 stocks *Stock Advisor returns as of November 20, 2020 Howard Smith has no position in any of the stocks mentioned. The Motley Fool owns shares of and recommends Proto Labs. The Motley Fool has a disclosure policy.Source