Forum: NinjaTrader
September 1st, 2017, 03:15 PM
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Replies: 3
Views: 1,467
There is a book: ...
There is a book:
https://www.amazon.co.uk/Vertical-Option-Spreads-Deviation-Inflection/dp/1118537009/ref=tmm_hrd_swatch_0?_encoding=UTF8&qid=1504293162&sr=8-1
However, to me, 1.8 seems arbitrary....
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