[PorterDuff]

So who decides what the DJIA and S&P 500 stocks actually are? A random number generator?

[buttcoinslol]

I will assume your interest is genuine, here are links to the documents explaining the methodology behind the various S&P[0] and DJ indices[1]. I'm sure you can find documents for /RUT and IWM (Russell 2000), as well as /NQ and QQQ (Nasdaq 100) if you would like to see those as well.

[0]https://us.spindices.com/documents/methodologies/methodology...

[1]https://us.spindices.com/documents/methodologies/methodology...

[navigatesol]

The point, with which I agree, is that it's still active, just much less so. It's a bit pedantic, but assuming ETFs are passive by definition could get people crushed when these themed tickers get outflows.