Replies to post #3910 on E-Wave for the S&P 500 Index

[rimshot]

SPY weekly with
15,2 Bollinger Bands
21,2 Bollinger Bands
26,2 Bollinger Bands -- 6 months of price action

https://c.stockcharts.com/c-sc/sc?s=SPY&p=W&yr=2&mn=11&dy=20&i=p28118575194&a=700308111&r=1579493514109