Decision price

North Circle TT -

Although focused on long-term value, North Circle Advisors will exploit temporary mispricings to open positions. For example, portfolio manager Bill Bradley pegged LIM Corporation’s fair value per share at $28 yesterday; however, LIM’s stock price seems to have overreacted to a competitor announcement prior to market open today. The follow events unfold over the course of the morning:

PRIOR CLOSE: LIM closed at $30.05
PRE-MARKET: LIM priced at $20.34
MARKET OPEN: LIM opens at $22.15
10:00 AM: LIM trading at $23.01
10:00 AM: Bradley confirms the overreaction with target price of $28
10:05 AM: Bradley instructs trader to buy 25,000 shares, with a limit price of $28 when LIM is trading at $23.09
10:22 AM: Trader finishes the buy with an average purchase price of $23.45

Q. Calculate the delay cost incurred in trading the LIM order.

Here they have taken 23.01 as decision price - I do not understand why? Bradley just confirms overreaction ?? that does not mean he has decided to trade?

Due to the manager determining that the market overreacted in premarket trading, we use the premarket price, as that is where it was trading when NCA decided that it’s overvalued.

Whichever trading price is closest to the made-decision to trade is what we will use as the decision price.

Hope this helps.