what is the best returning index since 2012

The Nasdaq Composite (IXIC) has had the highest return since 2012 by a major index, returning 834.6%.

ASSET% RETURN
the Nasdaq Composite (IXIC)
834.62%
the S&P 500 (GSPC)
469.17%
the Dow Jones Industrial Average (DJI)
302.95%