A winning streak often pushes odds out of line. When a good team goes up...

https://wiki-wire.win/index.php/Why_Does_the_Moneyline_Get_Expensive_Before_the_Handicap_Does%3F

A winning streak often pushes odds out of line. When a good team goes up against a good bet, the market can swing from fair value to overpriced. Imagine +130 odds shrinking to -140 as bettors pile in