Early NFL lines can be misleading—like a spread opening at -3 and drifting to...

https://wiki-book.win/index.php/How_Do_I_Know_If_a_Market_Move_Is_Real_or_Just_Hype%3F

Early NFL lines can be misleading—like a spread opening at -3 and drifting to -4.5 by kickoff. It’s a classic sign that sharp money has moved the market. Being patient and waiting for these shifts can save you from bad bets early on