** Potash miner's U.S.-listed shares down 6.7 pct at $15.02 after nearly touching 9-year low of $14.64, Mosaic down 4.6 pct at $21.43 after falling to 7-year low of $22.16
** Potash Corp's Toronto-listed shares down 7.3 pct to C$21.10
** J.P. Morgan Securities downgrades both companies to "neutral" from "overweight"
** Cuts Potash PT to $16 from $23; Mosaic to $24 from $40
** "We think there is a reasonable probability that Potash Corp will reduce its dividend from $1.52/shr to $1.00/shr in the course of 2016," JP Morgan analysts write
** Potash would have been able to more or less finance its dividend without borrowing, despite a drop in potash prices, but nitrogen prices have also moved lower sharply, they say
** Up to Monday's close, shares of both companies have lost nearly half their value in the last 12 months