When to use it
For listings with the pro rata at close method. Clients commit during the window, you close the listing, and the allocation is available on its Orders tab. It is only offered after the listing has closed.
How it is calculated
- Each order gets its share: the fractions requested times the fractions offered, divided by the total requested, rounded down.
- The fractions left over are handed out one at a time to the orders with the largest remainders. Earlier orders win ties.
- Any order whose allocation would fall below the minimum is rejected with a reason, and everyone else is recalculated.
| Order | Requested | Exact share | Rounded down | Final |
|---|---|---|---|---|
| A | 600 | 400.00 | 400 | 400 |
| B | 500 | 333.33 | 333 | 333 |
| C | 400 | 266.67 | 266 | 267 |
The rounded-down shares add up to 999, so the one remaining fraction goes to C, which has the largest remainder.
Preview and apply
- Open the pro-rata panel on the listing and review the preview table: each order, its outcome and the totals.
- Choose Apply allocation and confirm.
- Allocated orders become awaiting payment and the clients get their payment instructions.
- Rejected orders carry the reason.
- If an order changed while you were looking at the preview, applying is refused and you refresh the preview first.
- Orders are never rounded up beyond what the listing can hold.