Do Stock Price Gaps always get filled?

Do Stock Price Gaps always get filled?
Conclusion: So what's that mean: when a stock price gap is observed, by a chance of 91.4% it will get filled in the future. In layman's word, 9 in 10 gaps get filled; not always, but pretty close.
So far all ZOM price gaps got filled ,is it going to be different this time? Thanks for your time.
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