As Benoit Mandelbrot taught us about wild randomness, standard deviation is almost useless for describing market volatility.

SPDR S&P 500 ETF: https://www.zacks.com/funds/etf/SPY/profile?cid=CS-YOUTUBE-FT-VID
ProShares UltraPro QQQ: https://www.zacks.com/funds/etf/TQQQ/profile?cid=CS-YOUTUBE-FT-VID
Splunk: https://www.zacks.com/stock/quote/SPLK?cid=CS-YOUTUBE-FT-VID
Trade Desk: https://www.zacks.com/stock/quote/TTD?cid=CS-YOUTUBE-FT-VID
Alteryx: https://www.zacks.com/stock/quote/AYX?cid=CS-YOUTUBE-FT-VID

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