Markets are hard to predict right now, and that's raising a question for some on Wall Street: Does a common measure of volatility actually work the way it should?
원문출처 : https://www.cnn.com/2022/09/01/investing/premarket-stocks-trading/index.html
원문출처 : https://www.cnn.com/2022/09/01/investing/premarket-stocks-trading/index.html