call rule
- A regulation on an exchange that sets a formal bidding price for a cash commodity at the end of each trading day, effective until the next trading day begins
- The flower and fruit wholesalers use the call rule to establish prices at the end of each trading day.
- The call rule is used by the livestock exchange to set official bid prices after the day's trading ends.
- At the end of the day, the metals market uses the call rule to determine the next day's starting bid prices.
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