Laszlo Birinyi thinks the 1982 to 1990 bull market is the best comparison to the market we are in today.
He does not think that this bull is ready to end.
Birinyi said in order to find the end of a bull market, an investor needs to pay attention to the signs in the media. This signs are the same ones that have historically signalled the end of bull markets.
He elaborates in the video below:
