 Cubist Systematic Strategies LLC lifted its stake in shares of Archrock Inc NYSE:AROC by 44.0 in the 4th quarter, HoldingsChannel.com reports. The fund owned 112,678 shares of the energy companys stock after acquiring an additional 34,435 shares during the period. Cubist Systematic Strategies LLCs holdings in Archrock were worth 1,131,000 as of its most recent ... 