China penny-pinchers produce new stock market winners as deflation woes persist / Nikola went from $30bn EV hope to bankrupt penny stock in just five years - what went wrong? / What the end of the penny means for the economy, your piggy bank, and the way America prices items / The SEC needs to take action over penny stock listings / Your favorite stocks may soon be quoted in half-penny increments - which could cut trading costs / Nasdaq to Tighten Listing Rules for Penny Stocks / The penny starts to drop on small stock machinations / Boom in US penny stock trading prompts warnings of frothy markets / Are penny stocks getting the memestock treatment?