The chart was not as response to "buen idea". I just wanted the post to hit your mailbox. I think it has potential
WRT "I'm looking at Williams %R crossing -50 combined with the 20 SMA", It ended up being a "close above/below 20MA" signal, so I set that aside for now.
Although, in the spirit of "trade the trend", only trade long above & only trade short below the 20MA may have some merit.
Jim