Monsanto (MON) +3.3% premarket after Argentina's agriculture minister indicates China had approved Intacta soybeans for import. Morgan Stanley says, if correct, it "checks the single most important box in our Monsanto investment thesis." Piper Jaffray calls Intacta MON's "single most important earnings driver" for the next five years. Also, Macquarie upgrades MON to Outperform, seeing an attractive entry point for investors