Monumental market shifts don’t get much more dramatic than the scenes seen on Tuesday as shares of DraftKings (NASDAQ:DKNG) and Flutter Entertainment (NYSE:FLUT) began tumbling following the announcement of Kalshi’s record trading volume and latest product launches.
In a move that has investors within the sports betting sector worried, Tuesday’s noteworthy selloff appears to affirm the sector’s previous concerns about the impact prediction markets will have on traditional, regulated sportsbooks.
After a boisterous weekend of sporting action, Kalshi reported its trading turnover on Saturday reached $260 million, before hitting $275 million on Sunday.
Having smashed its previous single-day trading record of $245 million set on Election Day 2024 twice in the same weekend, the firm revealed that 98% of that weekend’s trades centered on college and pro football. A clear highlight being the Packers–Cowboys overtime thriller, which alone generated over $57.2 million in volume, a single-game record.
With that, investors certainly took note as DraftKings shares plunged 11.6% to $37.40, while Flutter, parent of FanDuel, dropped 10.3% to $254.01.
5-Week Kalshi Trading Breakdown
| Week Commencing | NFL Trade Value | Total Trades Value | NFL Trade % of Overall Volume |
| 8/22 | 5.8 million | 296.5 million | 2% |
| 9/1 | 231.7 million | 561.2 million | 41% |
| 9/8 | 222.9 million | 562 million | 40% |
| 9/15 | 317.8 million | 728.1 million | 44% |
| 9/22 | 354.8 million | 854.7 million | 42% |
Source: Kalshi
Kalshi’s parlay rollout looks set to jeopardize sportsbook margins
Unquestionably, the decisive catalyst has been Kalshi’s debut of its customizable parlays, a wagering format popular with traditional sportsbooks due to their immense hold rates.
The theory behind the reaction is that if Kalshi is able to improve its odds relative to the sportsbooks, bookies such as DraftKings and FanDuel will be forced to narrow their margins, a critical component that could fundamentally stress-test their profit margins.
Then, of course, there is the compounding differentiator in Kalshi’s arsenal, which is its unparalleled access to the Californian and Texan markets, where sports betting remains illegal.
Unrelenting pressure as prediction market collaborations heat up
Kalshi’s strategic partnerships have only accelerated this disruption. In fact, Robinhood (Nasdaq: HOOD) reported that more than four billion event contracts have now been processed on its platform, with half of those contracts clearing this quarter alone.
With Kalshi providing the underlying exchange mechanism, the knock-on effects are already stretching beyond that of just DraftKings and FanDuel. In addition to these notable slumps, Genius Sports (NYSE:GENI) fell by 7.9% and Sportradar (NASDAQ:SRAD) also slipped by 5.8% in trading, while BetMGM (NYSE:MGM), Caesars (NASDAQ:CZR), and Penn (NASDAQ:PENN) all saw smaller declines, believed to be cushioned by their continued brick-and-mortar traffic.
While Kalshi is commanding all the notoriety so far, other companies are also jumping on the bandwagon to offer event contracts. Two of the most high-profile being UnderDog’s partnership with Crypto.com, as well as last week’s announcement that PrizePicks had won CFTC approval to operate in the prediction markets.
Looking ahead, if prediction market platforms like Kalshi continue to sustain their momentum, utilizing parlays and football trading, gaming investors may need to recalibrate their expectations. However, that being said, the sector is not yet impervious to future regulatory setbacks, as Kalshi can attest to following its legal loss in Maryland in August.
