ToplineShares of Spotify erupted Tuesday after the audio streaming service delivered robust earnings, as the company seeks to achieve a rarity in the streaming space: Sustained profitability. Spotify shattered Q2 profit expectations.Getty Images for Spotify Key FactsSpotify stock leapt 14% in early trading, which would be its largest daily percentage rally since October 2019 and second-best day in the Sweden-based company’s six years on the New York Stock Exchange. Spotify’s premarket share price of $337 ...