Vig, Hold Rates, and Parlay Margins on Bet Apps: What You're Really Paying
The US sportsbook hold rate hit 9.3% in 2024. Learn how vig, break-even math, and parlay margins affect your bet app returns.
US sportsbooks kept approximately 9.3% of every dollar wagered nationally in 2024 — up from 9.1% the year before. That number is still climbing into 2026. Understanding why helps any bettor make smarter decisions about where and how they play. Check the Best Bet Apps in the US: Ranked and Reviewed for 2026 for a current rundown of which platforms offer the most competitive lines.
What exactly is the vig, and why does it matter?
Vig (also called juice) is the commission baked into every line. The standard spread or totals bet is priced at -110 on both sides. That means you risk $110 to win $100. Sounds close to even — but it is not. To break even at -110, a bettor must win approximately 52.38% of wagers, not 50%. That extra 2.38% is where bankrolls quietly bleed out over hundreds of bets. No licensing body sets a maximum vig, so books can price lines however they like and stay in full regulatory compliance.
How does the hold rate work?
Hold rate is the percentage of total handle the sportsbook keeps as revenue. A 9.3% national hold means for every $100 collectively wagered, books retained $9.30 on average. That is a meaningful gap between what bettors put in and what they get back. It is also why comparing apps on line quality matters just as much as comparing welcome offers. See How Do Sportsbook App Bonuses Actually Work? FAQ for context on how promos interact with this math.
Why are parlays the biggest driver of rising hold?
Each leg of a parlay carries the house's margin. Stack four legs and the book's edge compounds four times over. Parlays are structurally and significantly favorable to the house — and their surging popularity is the primary reason hold percentages have risen nationally. The headline payouts look attractive. The math underneath them does not favor the bettor.
How does vig affect rollover on bonus bets?
This is where it gets tricky. Some sportsbooks credit winning bets at a lower rate toward rollover than losing bets. For example, only $9.09 of a $10 winning bet placed at -110 counts toward a rollover requirement, versus the full $10 for a losing bet. The vig is effectively taxed twice on a winner. Read the full breakdown at Rollover Requirements on Bet Apps: Your Questions Answered before claiming any offer.
How do different bet types compare on margin?
| Bet Type | Typical Pricing | Break-Even Win Rate | House Edge / Hold Impact |
|---|---|---|---|
| Spread / Totals (single) | -110 both sides | ~52.38% | Moderate; standard vig on one leg |
| Moneyline (heavy favorite) | Varies; vig embedded in spread between sides | Higher than 52.38% on chalky plays | Moderate to high depending on line |
| 2-leg parlay | Vig compounds across both legs | Each leg still ~52.38%; combined probability drops sharply | High; margin stacks per leg |
| 4+ leg parlay / SGP | Vig compounds across all legs; SGP may carry additional margin | Must win every leg; exponentially harder | Very high; primary driver of 9.3% national hold |
Do bonus odds restrictions make this worse?
Often yes. Many bonus bets are restricted to wagers at -200 or longer minimum odds. That limits where you can deploy free credit and can push bettors toward lines with higher vig or into parlay territory to find eligible markets. Pair that with short expiration windows and you get rushed decisions on suboptimal bets. More detail on how these restrictions interact with offer terms is at Bonus Expiry Windows and Minimum Odds Restrictions on Bet Apps.
Availability of sportsbook apps and specific bonus terms varies by state; always confirm legality and current offers in your jurisdiction before signing up. 21+ only where required by state law. Gambling problem? Call 1-800-GAMBLER.