What happened Shares of Clean Energy Fuels (NASDAQ: CLNE) jumped as much as 25.1% in trading on Wednesday after getting a positive rating from an analyst. Shares held most of their gains throughout the day and were up 22.8% at 3 p.m. EST. So what Analysts at Credit Suisse initiated coverage on Clean Energy Fuels with an outperform rating and a $17 price target. That's about a 35% upside from where shares are currently trading. Image source: Getty Images. Joint ventures to unlock renewable natural gas are seen by analyst Manav Gupta as a very bullish sign for the company long-term. And with the federal government and the state of California pushing cleaner fuels, there could be huge tailwinds for Clean Energy Fuels' business. Now what Analyst upgrades and downgrades can often affect stocks in the short term, but they aren't what drives a stock long-term. Investors should focus on the underlying business, and in Clean Energy Fuels' case there's both opportunity and risk. The company hasn't been able to make a great business out of natural gas fuel thus far, but its transition to renewable natural gas is aimed at giving the company a new supply and a new source of subsidies given the need for clean energy credits in the U.S. That could ultimately lead Clean Energy Fuels to be a profitable renewable energy stock, but management has a lot to prove before this company is a no-brainer buy for energy investors. 10 stocks we like better than Clean Energy FuelsWhen 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 Clean Energy Fuels 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 Travis Hoium has no position in any of the stocks mentioned. The Motley Fool recommends Clean Energy Fuels. The Motley Fool has a disclosure policy.Source