Nasdaq OMX Fixes Data for Indexes After Calculation Error

Nasdaq OMX Group Inc., the second-largest U.S. equity exchange operator, said it found errors in calculating the value for indexes and corrected the data.

The errors took place on Dec. 7 and Dec. 10 and affected hundreds of gauges including the Nasdaq U.S. Large Cap Index and Nasdaq 100 Total Return Index, according to a statement sent by the New York-based company. Nasdaq asked recipients of the data to remove intraday ticks and the high and low values of the indexes.