What is the Periodic Call Auction session?
Introduced to control volatility, illiquid stocks are traded during the Periodic Call Auction Session.
There are 6 call auction sessions of 1 hour each conducted in a day. The auction window is structured similar to that of the pre-market session, and is as follows:
- 45 minutes for order placement and modification by investors.
- 8 minutes of order matching and confirmation by the exchanges.
- 7 minutes buffer before the next session.
| Session | Order Placement Time | Order Matching Time | Buffer Time |
|---|---|---|---|
| 1 | 9:30 - 10:15 a.m. | 10:15 - 10:23 a.m. | 10:24 - 10:30 a.m. |
| 2 | 10:30 - 11:15 a.m. | 11:15 - 11:23 a.m. | 11:24 - 11:30 a.m. |
| 3 | 11:30 - 12:15 p.m. | 12:15 - 12:23 p.m. | 12:24- 12:30 p.m. |
| 4 | 12:30 - 1:15 p.m. | 1:15 - 1:23 p.m. | 1:24 - 1:30 p.m. |
| 5 | 1:30 - 2:15 p.m. | 2:15 - 2:23 p.m. | 2:24 - 2:30 p.m. |
| 6 | 2:30 - 3:15 p.m. | 3:15 - 3:23 p.m. | 3:24 - 3:30 p.m. |
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