Shorting penny stocks is something that gets a lot of marking and sales pitches built around it. Taking a step back and looking at how to short penny stocks from a logical perspective reveals it is not all that some people make it seem like. In all actuality, it simply takes one or two trades to really put a hurting on your trading account.
Video: Penny Stocks On Steroids
Business Insider: A trader started a GoFundMe page to pay back $100,000 to E-Trade after a disastrous short
Course: Options Trading Simplified