If it wasn't for Cat's price, the market would again be down double triple digits.
Kind of an OT reply, but the DOW formula is really archaic. Overweights stocks just because the PPS (not market cap) is high.
They should replace it with a standard index, same stocks and rebased to have the same value at the switch.
We no longer have to calculate it with pencil and paer as they did in the 20's.