It has been a nutty rally for stocks in recent weeks and the vertical move caught both bears and bulls by surprise. If we look at implied volatility however, the new highs in the S&P 500 has not yet been confirmed by a lower high in the VIX, which is one reason to wave a red flag.
Watch the short video here: https://www.youtube.com/watch?v=ynURe7X1sKc