Welcome To the C.B.O.E.
This is to show some of the changes. The once infamous SPX pit, now almost a grave yard when compared to its modem day counter part AKA the VIX pit.
SPX PIT
I am standing in the SPX pit, note there is room for me to stand there and look around.
VIX PIT (packed)
Which is why we are trading volatility products, and clearly demonstrates why their volume and popularity has much more then surpassed that of the SPX in contracts traded.
Current Vol Trade. Vix derivative ET(N) *VXX* Options. iPath S&P 500 short term 04/26/2013