CONTRACT LAST NET CHGE S&P 500 SEP08 1273.00 +130 E-MINI SEP08 1281.75 +1000 E-MINI DEC08 1283.25 B +1000 NSDQ100 SEP08 1890.50 A -100 E-NASDAQSEP08 1905.00 +1350 おいダウに何が起きたよ