What is proportional allocation?Proportional Allocation

If a stock closes still stuck at limit-up (or limit-down) with far more buy (or sell) orders than the other side, the exchange splits the shares among brokers in proportion, and brokers allocate them to clients (often by lottery), so getting any is partly luck.

Learn “proportional allocation” in an animated lesson

Japan Stock Rules
Daily Price Limits: Stop High and Stop Low
Japanese price limits aren't percentages: the price band of the previous close sets how many yen a stock can rise or fall that day; if it closes stuck at limit-up, buy orders may be allocated pro rata.

Related terms

price limit
stop high / stop low

See how “proportional allocation” works for yourself with an animation you can drag and play.

Go to “Daily Price Limits: Stop High and Stop Low”