Up 5.31% so far this month, the S&P 500 is on track for its best January since 1997 - happy...

|By:, SA News Editor

Up 5.31% so far this month, the S&P 500 is on track for its best January since 1997 - happy news for the "as January goes, so goes the year" crowd. Maybe of more interest: Apple - the S&P's highest-weighted member - is also the worst-performer, -14.3%. Has there ever been an instance when the index has done so well while its largest holding did so poorly?