RE: Price monitoring extensions25 Jun 2020 21:25
Let me do the work for you and use Google ... I typed in 'Why do price monitoring extensions occur after close' ... oh look what is this ...
When do price monitoring extensions occur?
Price monitoring extensions occur off of the back of an auction, which take place at different times during the trading day depending on the platform the security is traded on. Therefore, as all AIM-listed companies are traded on either the SETS or SETSqx trading system, price monitoring extensions on the AIM market can occur at the following uncrossing times:
08:00 (Opening Auction; SETS)
09:00 (First Intra-Day Auction; SETSqx)
11:00 (Second Intra-Day Auction; SETSqx)
12:02 (Intra-day Auction; SETS)
14:00 (Third Intra-Day Auction; SETSqx)
16:35 (Closing Auction; SETS & SETSqx)
It is important to point out that price monitoring also takes place during regular trading. Here, again, should a potential execution be more than a defined percentage above or below the reference prices, then no executions at that price will occur and an auction will be triggered instead. The point of this auction is to allow the security’s price to reform in an orderly fashion and then be returned to regular trading.