S&P 500 Bollinger Bands
Bollinger Bands consist of three bands
They revolve around a centred simple moving average (SMA), with a default value of 20, of which 85% of the time, the price is held within the following boundaries:
Lower band – SMA (minus two standard deviations)
Upper band – SMA (plus two standard deviations)
Oil prices fell again on Thursday after sharp losses in the previous session, as the market shifted its focus toward rising U.S. crude stocks and away from fears conflict escalation between the United States and Iran.