marsh  mclennan cos on wednesday said its board raised the quarterly dividend by 10 to 59 cents a share the new payout equal to 236 a year represents an annual yield of about 154 based on tuesdays closing price of 15314 up from 14 the new york professionalservices firm said the increased dividend is payable aug 15 to shareholders of record july 28 sp dow jones indices recently reported that dividend payouts set another record in the second quarter a reassuring sign to investors who have flocked to steady incomegenerating stocks during the market downturn this year