Kalshi NFL Week 1 Vig: Totals Drive Its Pricing Lead

Kalshi NFL Week 1 vig averaged 4.32% in Citizens JMP Securities’ opening-week pricing sample, below FanDuel’s 4.44% and DraftKings’ 4.51%. The September 14, 2026 report gives Kalshi a narrow combined singles lead driven by totals, while FanDuel led moneylines and both sportsbooks beat Kalshi on the sampled combos.

Totals drove Kalshi’s combined pricing lead

A moneyline is a bet on which team wins. A total concerns the combined score going over or under a specified number. Separating those markets changes the reading of Citizens’ headline average.

On moneylines, Citizens measured FanDuel at 4.08%, Kalshi at 4.14% and DraftKings at 4.31%. On totals, Kalshi’s 4.50% was below DraftKings’ 4.71% and FanDuel’s 4.80%. Kalshi’s stronger totals result was enough to put it first in the combined sample.

The overall difference was small. Subtracting Citizens’ reported averages gives Kalshi a lead of 0.12 percentage points against FanDuel and 0.19 against DraftKings. Those are 12 and 19 basis points, respectively; one basis point is one-hundredth of a percentage point.

Kalshi was competitive on the sampled NFL singles and led their average. That does not establish the best price for every side of every game. Dyutam’s earlier March Madness pricing analysis covered a separate tournament sample; this NFL snapshot needs to stand on its own.

What the vig comparison leaves unresolved

Vig describes the margin embedded in quoted prices. In a conventional two-outcome sportsbook market, converting each side’s odds into implied probabilities and adding them reveals the excess above 100%. Readers unfamiliar with that conversion can start with how betting odds work and use Dyutam’s vig calculator to inspect a particular pair of sportsbook quotes.

Citizens does not publish its full calculation method or raw per-game prices for this comparison. Its reported vig should therefore remain an attributed pricing measure. It is distinct from realized hold, the share of stakes a sportsbook retains after settling bets, and from Kalshi’s fee revenue. The gap between two averages also cannot be translated directly into guaranteed savings on a $100 wager.

Fees are the main unresolved part of the headline comparison. Citizens reports an average Kalshi transaction fee of $1.62 per 100 contracts, but does not explicitly define whether, or how, that fee enters the 4.32% singles figure. Labeling that number definitively before fees or after fees would go beyond the document. Adding 1.62 percentage points would also mix a cash charge per contract quantity with a percentage measure on an unspecified basis.

Kalshi’s published fee schedule shows why the contract price matters. Its standard taker-fee table lists a $1.75 fee for 100 contracts priced at 50 cents each. That is a $50 contract purchase plus a $1.75 fee, or $51.75 in total, under that example. Actual charges depend on the market’s applicable schedule and the order; a resting order should not automatically be assumed fee-free.

Execution matters too. Kalshi’s limit-order guidance explains that an order needs matching liquidity and can fill only partially. A useful comparison requires the same outcome, a comparable payout and the price available for the desired size, including applicable fees. A favorable screen quote alone does not settle that calculation.

The sampled combos favored sportsbooks

Citizens also tested 14 combinations pairing a game’s favorite with the over. Its reported combo vig was 23.8% at Kalshi before transaction fees, compared with 22.0% at both FanDuel and DraftKings. The fees qualification is explicit for this comparison.

The result covers those particular combinations. It does not rank every parlay or every number of legs. Combining selections also introduces a different pricing problem, especially when their outcomes are related; Dyutam’s parlay betting guide explains how the combined wager works.

Kalshi already offers its own combos. Its help documentation describes a request-for-quote process, with prices that can change and execution that is not guaranteed. The competition therefore extends across singles and combinations on both exchanges and sportsbooks. This sample gives Kalshi a singles headline, but gives the sportsbooks the advantage on the tested combos.

Why parlays remain central to sportsbook economics

DraftKings’ own figures show how much its business mix has shifted. Its March 2026 Investor Day presentation reports that parlays accounted for 21% of total sportsbook handle in 2020 and 32% in 2025. Handle means the amount wagered. These percentages cover the sportsbook across sports, rather than NFL betting alone.

A sportsbook’s economics depend partly on which products customers choose. A larger share of wagers flowing into parlays makes that product’s pricing and retention value more consequential to the business. A close contest over singles can coexist with a broader commercial focus on combinations. The handle trend alone does not establish how much of DraftKings’ revenue or profit growth parlays caused.

Nor does the operator strategy reduce to raising margins indefinitely. In its August 2026 results, FanDuel parent Flutter described a change in emphasis:

“move from a focus on margin growth, to prioritizing AMP growth and customer value.”

— Flutter, second-quarter 2026 results

AMP refers to average monthly players. The statement puts customer growth and value alongside margin in assessing FanDuel’s priorities. DraftKings also operates a predictions business, as its August 2026 results make clear. The companies themselves are participating on both sides of the exchange-versus-sportsbook comparison.

The practical lesson from Week 1 is to compare the specific market. Citizens’ aggregate favored Kalshi, its moneylines favored FanDuel, and its tested combos favored both sportsbooks. Fees and the executable price still determine what a particular transaction costs. One dated snapshot supplies a useful benchmark, not a season-long winner.

FAQs

Sources

• NFL Week 1 pricing report, September 14, 2026 — Citizens JMP Securities
• Trading fee schedule — Kalshi
• Fees — Kalshi Help Center
• Limit Orders — Kalshi Help Center
• Combos — Kalshi Help Center
• 2026 Investor Day presentation, slide 60 — DraftKings
• Second-quarter 2026 results — DraftKings
• Second-quarter 2026 results, August 5, 2026 — Flutter Entertainment, SEC filing