Question 1

What is the hold or vig?

Accepted Answer

The hold (also called vig, juice, or margin) is the sportsbook's built-in profit margin. It's the difference between the true probability and the implied probability from the odds. A standard NFL spread has about 4.5% hold.

Question 2

How is hold calculated?

Accepted Answer

Hold = (Implied Probability of Side A + Implied Probability of Side B) - 100%. For example, if both sides are -110, each implies 52.38%, so the hold is 4.76%.

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