Market Extra: Nasdaq is leading the Dow by the widest margin since 1991 as blue-chip gauge erases 2023 gain. Is that a good sign?

The Nasdaq Composite is now leading the Dow Jones Industrial Average by 18.3%, its widest margin of outperformance since 1991 as of Tuesday’s close while the blue-chip gauge erases its year-to-date gain, according to Dow Jones Market Data.