With Chevron Corporation CVX's stock trading in line with BMO Capital Market's price target, the research firm downgraded shares of the company. A widening valuation multiple isn't justifiable, despite Chevron's promising growth prospects in the Permian and a ramp of Australian LNG volume supporting the dividend and the potential for share buybacks, analyst Brendarn Warn said in a Wednesday note. BMO downgraded shares of Chevron from Outperform to Market Perform, with a $120 price target. Read moreThe rising wedge is ready for a breakout. The price will try to form some downside. $CVX, Chevron Corporation / D