https://www.wishingwealthblog.com/2020/12/blog-post-buying-ipos-with-green-line-break-outs-glb-and-a-weekly-green-bar-wgb-signal-pgny-tsla/
Blog post: Buying IPOs with Green Line Break-outs (GLB) and a Weekly Green Bar (WGB) signal; $PGNY $TSLA