What happened Shares of Beam Global (NASDAQ: BEEM) have gotten crushed today, down by 31% as of 1:15 p.m. EST, as many stocks related to electric vehicles (EVs) are broadly pulling back. Beam Global offers EV charging services using solar energy. So what Speculative investors betting on accelerating adoption of EVs pushed related stocks into the stratosphere during 2020, stretching the valuations of many companies and pricing in significant growth expectations. The meteoric rise has also attracted the attention of short-sellers, who may believe that EV stocks are overvalued. Beam shares skyrocketed in the final months of 2020, with gains briefly topping 1,500% prior to today's sell-off. BEEM data by YCharts. Meanwhile, short interest has also fluctuated meaningfully along with the stock's volatility. Now what The EV industry did enjoy some major milestones in 2020. Certain battery pack prices fell below $100 per kWh last year, according to Bloomberg New Energy Finance. That level is often considered a key threshold as EVs become more affordable. Investors are hoping that rising adoption will boost demand for charging services like those offered by Beam Global. Image source: Getty Images. However, the company has only generated $4.5 million in trailing-12-month (TTM) revenue yet currently boasts a market cap of over $400 million, meaning the stock is trading at approximately 90 times sales. Revenue in the third quarter had fallen by 31% to $1.2 million, which Beam attributed to order delays related to COVID-19 and other delivery challenges. 10 stocks we like better than Beam GlobalWhen 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 Beam Global 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 Evan Niu, CFA has no position in any of the stocks mentioned. The Motley Fool has no position in any of the stocks mentioned. The Motley Fool has a disclosure policy.Source