Here is a very interesting chart to say the least.
I just happened upon it today and there is some serious merit to this pattern.
This does not change my outlook for new highs and a continuation of the bull market, BUT.......................
If I see this pattern starting to come to life over the next few months, I would be silly to not pay heed to the potential and I certainly would take action to protect myself in such an event.
Just something to keep you mind on as the year progresses.