I know fundamentally on how the opening lines are made, and how vig is added to them ect. However I am not really sure if my understanding of the closing lines is correct. Any confirmation or clarification would be greatly appreciated
So my understanding is that the opening line by the book is made by their estimate of what the win % is of each team + vig. For this example I will use -200 / +150. Using a remove vig calculator
http://www.onlinebetting.com/remove-vig/
Team A -200 = 59.46%
Team B +150 = 40.54%
Now I understand that the lines move as a result of how much money get's bet on each side to keep the relative ratio the same. However if we use our example and the lines goes to something like -250 / +150
Team A -250 = 64.10%
Team B +150 = 35.90%
From my understanding of this scenario. The book made odds, than has discovered new information ect and adjusted the line to account for the new win % of Team A.
Question
Are the closing odds the most accurate depiction of the true win % of a team? Or would the opening odds be the most accurate win % of the team, since the way they change around the lines to adjust for bets would move the win% as well after removing the vig.
Yes, I know this is probably a noob question. However I am just really curious on how this works. I really appreciate the help from anyone