v\:* {behavior:url(#default#VML);} o\:* {behavior:url(#default#VML);} w\:* {behavior:url(#default#VML);} .shape {behavior:url(#default#VML);} The Dow soared over 300 points on the last day of November to close above 24000 for the first time in its history. Hopes for a tax overhaul may have contributed to investor confidence in equities. Each of the benchmark indexes listed here posted favorable monthly gains.