The following are common examples. Please review your received data.

-There may be cases where orders are heavily skewed to either buy or sell, causing the special quote to be updated up to the upper or lower limit price, and the conditions for the Itayose method are not met. However, at the end of the afternoon session, trades may be executed using the Stop Allocation method (instead of the Itayose method).
-In markets other than the main market, there may be very few orders, and as a result, it is often observed that no executions occur throughout the day.