Comparing ARKK to PBW and nasdaq100

AMEX:ARKK   ARK Innovation ETF
PBW has been blasting it this year, but it underperformed the nasdaq100 for a long time before that. ARKK has out performed more consistently. We are seeing more chinese tech taking the reins in recent times.
This is just an observation of all things in cutting edge sectors. Green energy might be pushed as people shy away from fossil fuels. Especially after the negative futures prices for oil earlier this year. I like all of these ofcourse.