@bingdong_long69, It's completely valid. Where is the confusion, maybe I can help?
longB1
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@ollyt33, XD should be either 1.13 or 88.6
BD is between 1.618 - 2.24
ollyt33
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@bingdong_long69, D point should complete at 1.13 extension of XC (which it does). I'm still not sure where you're getting confused..
longB1
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@ollyt33, So what about B-D?
and also on your chart XD is 1.213 not 1.13
ollyt33
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@bingdong_long69, I might suggest some light reading on Harmonic Patterns. There's no BD entry point in a Shark pattern, it's either .886 XA or 1.13XA. My entry was at the 1.13 "zone" not a precise touch of it. I wait for an entry reason before entering the trade