You can count this as an atypical impulse or more traditional WXY corrective structure. What I think is going on is this is likely an impulse that was morphed because of bullish/bearish factors that is why you don't see an obvious impulse in the other indices such as Nasdaq or SPX.
Since June we are making a triangle/diagonal structure with 5 waves or ABCDE with each leg having 3 waves. Once complete we should have a bullish swift retracement.