The latest trading session saw Plains All American Pipeline (PAA) ending at $16.20, denoting a -0.61% adjustment from its last day's close. This move lagged the S&P 500's daily gain of 0.76%. Meanwhile, the Dow gained 0.59%, and the Nasdaq, a tech-heavy index, added 1.12%.Heading into today, shares of the oil and gas transportation and storage company had gained 7.59% over the past month, outpacing the Oils-Energy sector's loss of 2.82% and the S&P 500's gain of 2.5% in that time.The upcoming earnings relea ...