[bts89]

500 is the target, not a hard requirement. The current SP500 index is comprised of 503 constituents.

I’m also pretty sure S&P doesn’t maintain a ‘S&P 500 Software & Services Index‘.

There is a ‘S&P Software & Services Select Industry Index’ with 140 constituents. That’s probably the index in question.

[zahlman]

Right; so if it's not "the software and services subset of S&P 500", then TFA was mistaken in including "500" in the name.

That's what I was trying to establish.

Either that, or there really are 140/503 software and service companies, and I learned something surprising.

[bts89]

Agreed. It’s likely just a typo.