Early NFL lines can be misleading—think about a game opening at -3 and closing...

https://meet-wiki.win/index.php/How_Much_Does_Offensive_Line_News_Matter_for_Betting_Spreads%3F

Early NFL lines can be misleading—think about a game opening at -3 and closing at -4.5. That half-point swing might not seem huge, but it shows how early numbers often undervalue or overvalue teams