what is the best returning index since 2007

The Nasdaq Composite (IXIC) has had the highest return since 2007 by a major index, returning 639.9%.

ASSET % RETURN
the Nasdaq Composite (IXIC)
639.91%
the S&P 500 (GSPC)
301.03%
the Dow Jones Industrial Average (DJI)
231.61%