BofA's Michael Hartnett pushed his Bull & Bear gauge to a sell signal and laid out the post-bubble trade he says has worked since 1929.

BofA's Michael Hartnett pushed his Bull & Bear gauge to a sell signal and laid out the post-bubble trade he says has worked since 1929.

Michael Burry says the market has "jumped the shark" and resembles past bubbles. But a valuation indicator from Reflexivity suggests the bull market may still have room to run.