The futures markets have circuit breakers in both directions.  They are called &quot;limit up&quot; days or &quot;limit down&quot; days.  There are stories of commodity traders that got entirely wiped out when some futures were limit up or limit down for days or weeks, and that they couldn&#x27;t exit their positions.<p>When I was trading corn and soy, I&#x27;ve seen a few limit up&#x2F;down days myself, but thankfully never caught in them.