Sophiris Bio outperforms S&P 500 By: MarketMinute.com Stock News July 25, 2016 at 18:22 PM EDT Trade Calls noted that Sophiris Bio Inc. (Nasdaq: SPHS) outperformed the S&P 500 by 120.58% over the past month. Shares of the biopharmaceutical soared $1.57 to close at $5.95. Related Stocks: Sophiris Bio