Is Sirius XM a hidden gem or a stock to avoid? Here's what you need to know.Satellite radio veteran Sirius XM Holdings (SIRI 2.77%) broke out of a long standstill in 2023, but not in a good way. After trading sideways for two and a half years, Sirius' stock chart started to buckle. The trading pattern turned volatile last year, falling as much as 41% with a peak gain of 34%, before ending the year just 6% lower.The bears are winning the Sirius battle in 2024. The stock is down by 33% year-to-date, and that' ...