Gilead Sciences (GILD) closed the latest trading day at $73.41, indicating a +0.2% change from the previous session's end. The stock's change was less than the S&P 500's daily gain of 0.57%. Meanwhile, the Dow gained 0.83%, and the Nasdaq, a tech-heavy index, added 0.39%.Heading into today, shares of the HIV and hepatitis C drugmaker had gained 2.35% over the past month, outpacing the Medical sector's gain of 0.13% and lagging the S&P 500's gain of 2.97% in that time.Market participants will be closely foll ...