Palo Alto Networks (PANW) may be offering investors an intriguing possibility: It appears to be setting up in a double bottom with a handle. Skeptics will wag their fingers and say it can’t be a valid double bottom because the second leg didn’t undercut the first. However, it did undercut if you disregard Monday, Aug. 24, which was in essence a flash crash caused by the meltdown of the Chinese stock market.