Think: 25 Shades.
Yes, there's a pattern in which a stock trades. You'd expect it to continue in a given line. But then it wiggles or wrinkles or tweaks a bit.
Is the pattern no longer relevant? Eh, not necessarily. It might just have been a semideviation from the expected pattern, only to have the security return to that line and continue, predictiably, as it had been playing out previously.