The S&P 500 has been on a tear since the start of 2023. Posting a 32.2% total return and hitting an all-time high earlier this year, the index is going through one of its best bull runs ever. However, audio streamer Spotify (SPOT 0.32%) has managed to crush the returns of the broad market over that period. Its shares are up 205% since the start of 2023, making it one of the best-performing stocks in the world over that time frame. With expanding margins and consistent revenue growth, Spotify has proven a lo ...