How rare is it to Shut the Box?

Could you elaborate on the phrase "Shut the Box" in the context of cryptocurrency or finance? It's not a commonly used term in these fields, so I'm curious about its specific meaning and rarity. Are you referring to a particular strategy, market condition, or perhaps a slang term among traders? If so, how often does it occur and what are the implications for investors when it does? Understanding this concept would help me better grasp the nuances of the market and potential investment opportunities.