As reported earlier, BMO Capital analyst Joel Jackson downgraded Monsanto (MON) to Market Perform from Outperform while keeping his $128 price target. Jackson cites the rising likelihood of the acquisition by Bayer (BAYRY) after yesterday's reports of approval of the merger by the U.S. Department of Justice. The analyst notes that since the stock price is now so close to Bayer's takeout price, the isn't "sufficient spread" to support a more bullish rating. In the event of a breakdown of the deal, Jackson sees downside support for the stock around $110 per share.