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Opening Swing (OS)

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Definition of 'Opening Swing (OS)'

This is a high and low that is set by the initial auction right after the market opens. It is independent of time and is not the same as an opening range.

The opening swing is the high of the first push up and the first push down or vice versa. It measures how far the Market On Open (MOO) orders took the auction right after the open.

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