How to abbreviate Close-Open-Close?

The ways to abbreviate Close-Open-Close.

Showing "Close-Open-Close" (corrected from "keep a close eye") | add "keep a close eye" definition

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Close-Open-Close(Technology)
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APASmart Define. (2017). Close-Open-Close. Retrieved September 27, 2026, from http://smartdefine.org/close-open-close/abbreviations/a
ChicagoSmart Define. 2017. "Close-Open-Close" http://smartdefine.org/close-open-close/abbreviations/a (accessed September 27, 2026).
HarvardSmart Define 2017, Close-Open-Close, Smart Define, viewed 27 September, 2026, <http://smartdefine.org/close-open-close/abbreviations/a>.
MLASmart Define. "Close-Open-Close" 16 June 2017. Web. 27 September 2026. <http://smartdefine.org/close-open-close/abbreviations/a>