ARK Invest: Prediction Markets Can Scale to $5 Trillion Within 5 Years

Key Points

  • ARK Invest projects that prediction market notional volume will hit $5 trillion within the next three to five years
  • The ambitious forecast looks far beyond sports betting, targeting deeper macroeconomic, corporate, and geopolitical event contracts
  • This massive growth curve signals a permanent shift for prediction markets from niche platforms into mainstream financial infrastructure

Prediction market volumes could scale to $5 trillion within the next three to five years, according to new research from ARK Investment Management.

Polymarket Kalshi event contracts
ARK Invest says prediction market notional volume could hit $5 trillion in three to five years. (Image: Shutterstock)

That’s far beyond even some of the most ambitious forecasts projecting that turnover on all-or-nothing exchanges will swell to $1 trillion or slightly more by 2030.

ARK says prediction markets are going mainstream, highlighting recent reports indicating that Facebook owner Meta Platforms is working on its yes/no platform. The money manager notes entrenched operators can be disrupted if they don’t make the investments needed to capture adequate share of the projected volume surge.

“Kalshi has grown from almost no market share two years ago to ~68% of weekly notional volume today, thanks largely to its regulatory compliance in the US. Since mid-2024, Polymarket’s share has dropped from 97% to ~25%, suggesting that incumbents can lose share in successive event cycles and that those building the infrastructure necessary for the next event cycle are more likely to gain share.”

ARK analyst Nicholas Grous

Florida-based ARK is an investor in closely held Kalshi.

ARK Sees Prediction Markets Evolving Beyond Sports

A new report from Jefferies indicates prediction market volume surged 80% last month (June) with 89% of that turnover attributable to sports derivatives or sports-heavy combo bets, also known as parlays, confirming the World Cup is a boon for yes/no exchanges.

ARK’s Grous acknowledges the potency of the soccer tournament, but notes the firm’s volume forecast isn’t sports-centric. Rather, it accounts for growth in other event contracts.

“In our view, the upside is likely to come not from sports but from financial, economic, and political contracts that give retail investors direct exposure to real-world outcomes”.

ARK Analyst Nicholas Grous

Outside of sports, retail traders are already proving to be fans of political derivatives, potentially signaling another volume surge awaits prediction markets as the November midterm elections near.

Infrastructure Maturity Matters

While $5 trillion is actually small in the context of the expected future trajectory of the broader global derivatives market, it’s massive in the current context of prediction markets.

Getting there requires infrastructure investments, underscoring why companies such as DraftKings are bringing exchange functionality in-house and why established competitors like Polymarket work with and are backed by operators of traditional financial exchanges.

“When the underlying infrastructure matures, and if institutional participation begins in earnest, the market opportunity could be profound in the context of the potential future approximately $900 trillion in notional volume in the financial derivatives market,” concludes Grous.

Todd Shriber
Todd Shriber Financial Reporter

Todd Shriber is a senior news reporter covering gaming financials, casino business, stocks, and mergers and acquisitions for Casino.org.

Todd got his start in financial markets as a reporter with Bloomberg News. Later, he became a trader at a Southern California-based long/short hedge fund, where he specialized in the trading sector and international ETFs leading up to and during the financial crisis. He joined Casino.org in 2019.

Currently, Todd analyzes, researches, and writes on ETFs for various web-based publications and financial services firms. Shriber has been featured and quoted in Barron's, CNBC.com, and The Wall Street Journal. His work can also be found on Benzinga, ETF Daily News, ETF Trends, MarketWatch, Fox Business, and Nasdaq.com.

He currently resides in Las Vegas, where he enjoys golf and taking his black lab to the dog park. He's also an avid sports fan and likes to wager on college football and the NBA. You can also find him at the three-card poker and roulette table, even though he knows better.

Contact Todd at todd.shriber@casino.org.

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