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HOME/20VC/Kalshi CEO Tarek Mansour on the…
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// EPISODE
20VC

Kalshi CEO Tarek Mansour on the Polymarket Rivalry & the Future of Prediction Markets

DATE December 8, 2025SOURCE 20VCPARTICIPANTS HARRY STEBBINGS, TAREK MANSOURREGION WESTERN
// KEY TAKEAWAYS3 ITEMS
  1. 01The Rare Consumer Behavior Shift: From Passive Observers to Active Participants
  2. 02Resilience as the Ultimate Competitive Advantage
  3. 03The Regulatory-First Strategy as Long-Term Moat

1. Key Themes

The Rare Consumer Behavior Shift: From Passive Observers to Active Participants

Kalshi is experiencing one of the rarest phenomena in tech—a fundamental shift in consumer behavior. Tarek describes how people are moving "from passive watchers of events or news or sports or other things that they engage with in real life to active participants" [00:01:46]. This transformation is comparable to what Airbnb achieved with hosts and Uber with riders. The company is now "the fastest-going company in America outside of AI" [00:01:27], with growth rates that rival only Anthropic. This isn't just about creating a new product—it's about creating "a new class of people in the Skatees prediction market traders becoming a thing" [00:02:09].

Resilience as the Ultimate Competitive Advantage

The company's defining characteristic is extraordinary resilience through regulatory warfare. Kalshi spent three years getting regulated, got blocked at launch, then attempted to secure election markets for the 2022 midterms only to be pocket vetoed by the government who "delayed their approval till past the midterms to not give it to us in time" [00:16:40]. They lost significant portions of their team twice. Yet they persisted, ultimately suing the government and winning on October 7th, 2024. As Tarek reflects: "the beautiful outcome here...is giving us a beautiful lesson, which is like, you truly can wall something into existence. You really can" [00:15:19].

The Regulatory-First Strategy as Long-Term Moat

While competitors like FTX pursued aggressive offshore strategies, Kalshi committed to a regulatory-first approach that seemed "unsexy" during the crypto boom years. Tarek was "unwavering in my belief" that "in financial service and healthcare, the only way to build something that will last the test of time and that will truly go mainstream is to work with regulators, to do it clean, to do it right" [00:34:42]. This contrarian bet, which cost them market share and made them look like "the safe, boring doozers" [00:34:21], has now become their primary competitive advantage and barrier to entry.

2. Contrarian Perspectives

Capital Doesn't Create Winners—Better Products Do

When asked if large amounts of money can "anoint a winner in a category," Tarek pushes back: "I'm maybe a little bit more on the other side, which is like a better product will Trump any day" [00:03:46]. He cites DoorDash versus Uber Eats, where "Uber Eats had, I mean, infinite capital to compare to Doordash, but Tony about the better product and 21, right?" [00:03:53]. This contradicts the current VC strategy of king-making through massive capital deployment. The caveat: capital works "if the company is a is a is an A plus execution company" [00:04:44].

Being Too Product-Driven is a Strategic Mistake

Tarek admits an unconventional regret: "I was too product driven for too long" [00:35:32]. He explains: "I think I was always like, we got to build the product and make it absolutely perfect...And I actually think you have to build both together" [00:35:37]. This challenges the YC orthodoxy of "build a great product and people will come." His revised philosophy: "build a great product but build a great marketing engine and scramble to do both at the same time" [00:36:25]. However, he's emphatic that the order matters—product must come first, then marketing, never marketing then product.

Prediction Markets Are Information, Not Gambling

Tarek makes a fundamental distinction that challenges regulatory classification: "In gambling, there's a house...the revenue of the house is equal to its customer's losses" [00:43:10]. In contrast, Kalshi operates as "an open, transparent financial market that is neutral...Whether you lose or make money, we are not incentivized for either way" [00:43:24]. Furthermore, "out of every 100 prediction market users, maybe there's like one or two traders that are actually trading on the market. But the rest of the users are getting informed about the world" [00:23:10]. This reframes the entire category from gambling to information infrastructure.

Rivalry Drives Industry Creation and Excellence

Rather than viewing competition as destructive, Tarek embraces it: "an industry truly becomes an industry when there's a rivalry because that rivalry will push you...beyond the limits of what you thought you could get to" [00:11:12]. He cites Messi and Ronaldo, Tom Brady and Peyton Manning. Regarding Polymarket specifically: "without polymarket, we wouldn't have...pushed our marketing and pushed our product as hard. And without us, they wouldn't have pushed our market and their product" [00:12:08]. The "net winner of all of this...is these early evangelists in prediction markets that now have seen their market grow from this sort of weird corner of the internet to like a massive industry" [00:12:32].

Most People Are Mediocre for the Jobs You're Hiring For

In a brutally honest take on hiring, Tarek states: "most people are kind of mediocre. And not in a bad way, necessarily, but just mediocre for the job that you're trying to hire them for" [00:44:19]. He emphasizes that "most people that come to your door should probably not be at your company" because "most teams are not great teams" [00:44:04]. This challenges the prevalent narrative that every startup can build an all-star team—the math simply doesn't work given how rare top performers actually are.

3. Companies Identified

Anthropic

  • Description: AI company
  • Why mentioned: Referenced as one of the only companies growing faster than Kalshi
  • Quote: "I think the fastest-going company in America outside of AI. I think Anthropics is going faster" [00:01:27]

DoorDash

  • Description: Food delivery platform
  • Why mentioned: Cited as example of product quality trumping capital advantage against Uber Eats
  • Quote: "Uber Eats had, I mean, infinite capital to compare to Doordash, but Tony about the better product and 21, right?" [00:03:53]

CME (Chicago Mercantile Exchange)

  • Description: Traditional derivatives exchange
  • Why mentioned: Praised as a competitor entering prediction markets with an "incredible business"
  • Quote: "I respect CME a lot, even though they're like an incumbent legacy. But as a business, it's really an incredible business what they built" [00:13:06]

DraftKings and FanDuel

  • Description: Sports betting platforms
  • Why mentioned: Acknowledged for exceptional marketing execution
  • Quote: "drafts can then fend old, they have really effective, I would say like marketing machines, they're like some of the best spenders of dollars on the planet" [00:13:18]

Robinhood

  • Description: Trading platform entering prediction markets
  • Why mentioned: Acknowledged as formidable competitor with strong execution
  • Quote: "incredible company, amazing execution. I think Vlad has been able to sort of move into new products pretty successfully" [00:13:17]

Polymarket

  • Description: Offshore prediction market platform
  • Why mentioned: Primary competitor that has "done an incredible job at marketing. They build a good brand. And we learn from that" [00:13:25]

Klarna

  • Description: Fintech company
  • Why mentioned: Eric and Cream praised for expertly building founder/company brand
  • Quote: "I think Eric and Cream have done a very good job building a story and a brand around the founders, the team, the company I've come to be, and the quality of their execution" [00:42:32]

4. People Identified

Alfred Lin (Sequoia Capital)

  • Description: Partner at Sequoia Capital, Kalshi board member
  • Why mentioned: Described as exceptional investor who provides nuanced, contrarian counsel
  • Quotes:
    • "Alfred is a very unique, very unique investor...if he's loved to make strong simplistic statements...Alfred's answer to everything is this sort of very nuanced, in the gray, uninteresting, uninspiring answer. But it tends to be the right answer" [00:29:07]
    • "he's always, always a kind of counterbalancing actor...every time, so if I go with him with idea A, he will argue for the other for not a" [00:30:03]
    • "when the company is doing poor, Alfred is the most optimistic and will come and like be excited and push you. And when the company is going well, Alfred gets busy" [00:30:36]

Vlad Tenev (Robinhood)

  • Description: CEO of Robinhood
  • Why mentioned: Praised for product innovation and described as "such a good dude"
  • Quote: "incredible company, amazing execution. I think Vlad has been able to sort of move into new products pretty successfully. And you know, they've been incredible partner of ours" [00:13:17]

Colin (Canaan Partners)

  • Description: Early investor at Canaan
  • Why mentioned: Invested in 2019 "because it was the biggest time he had ever seen in potential"
  • Quote: Referenced by Harry at [00:06:26]

Neal Mehta

  • Description: Prominent investor
  • Why mentioned: Tarek's answer for investor he'd most like to have who he doesn't currently have
  • Quote: "I've always wanted to have Neil involved. He's just such an incredibly smart person. Every time I talk to him" [00:32:40]

Victor Lazarte

  • Description: Presumably advisor/mentor to Tarek
  • Why mentioned: Frequent walking meeting partner who "helped me think bigger"
  • Quote: "I spent a lot of time just walking with Victor, Lasart...He's just kind of always helped me think bigger. And he pushes back on my thinking" [00:46:04]

Lionel Messi

  • Description: Professional soccer player
  • Why mentioned: Tarek's ideal celebrity partner, "the greatest athlete of all time"
  • Quote: "he loves soccer more than anything on this planet and you can feel it...all he cares about is getting on that pitch and winning" [00:38:38]

5. Operating Insights

Process Trade-offs: Choose Your Pain Carefully

Tarek articulates a fundamental trade-off that founders must consciously choose: "you're choosing, in my view, between two different pains, either product velocity...or you cave on my chaos and organization in a company. I don't think you can get both" [00:45:20]. Kalshi deliberately maintains a "very flat, low on process, very low on politics" culture focused on "product, customer and shipping" [00:45:05], accepting organizational chaos as the price for velocity. This contradicts conventional wisdom about scaling requiring process—Tarek argues you must pick your priority.

The Brand-Product Timing Paradox

A critical insight on go-to-market strategy: "it's not like, maybe it's the YC thing which is build a great product and people will come. I think build a great product but build a great marketing engine and scramble to do both at the same time" [00:36:20]. However, the order is critical: "You can all go fully vertical because then your product offering is not diverse and interesting enough. And you can all go fully wide because then you don't concentrate enough" [00:26:39]. The key is simultaneous development rather than sequential, challenging the "build first, market later" orthodoxy.

Capital Requirements Scale with Regulatory Complexity

For regulated financial businesses, capital serves a different function than in traditional tech: "as a regulated, like we're federally regulated, financial exchange, it's a little bit like a bank or some of the kind of regulated clearinghouse...you have reserve requirements and added capital on the balance sheet...more capital enables us to do things faster in financial services" [00:03:06]. This explains why Kalshi raised $1 billion despite being profitable—regulatory capital requirements create different scaling dynamics than pure software businesses.

Reputation Compounds in Infinite Games

On protecting early investors despite pressure from top-tier funds: "we're playing a long term iterated infinite game...every decision is around. And I think it's very important that throughout the game and throughout the rounds, you build a reputation that where people can trust you" [00:27:48]. The operational implication: short-term optimization on cap table terms destroys long-term optionality and partnership opportunities. "If you're someone that does ride by people around you, over time people are gonna wanna work with you" [00:28:26].

Counter-Consensus Early Hiring Signals

On what types of candidates to accept: "most people are kind of mediocre...just mediocre for the job that you're trying to hire them for. And so it's really, really hard to find the top five 10%ers" [00:44:19]. Operationally, this means: "most people that come to your door should probably not be at your company" [00:44:04]. The insight is statistical: don't lower your bar because of hiring pressure—the math of talent distribution means most candidates genuinely aren't good enough for a company trying to build something exceptional.

6. Overlooked Insights

The 99:1 User Ratio Reveals True Business Model

A critical data point buried in the conversation: "out of every 100 prediction market users, maybe there's like one or two traders that are actually trading on the market. But the rest of the users are getting informed about the world" [00:23:10]. This fundamentally reframes what Kalshi is building—not a trading platform, but an information and media business where trading creates the information infrastructure. This 99:1 ratio suggests the real business is in aggregating attention around truth-seeking, not facilitating transactions. The strategic implication: partnerships with CNN and CNBC aren't tangential—they're core to the business model because "it's really a form of news, it's form of media" [00:23:20].

The Regulatory Delay as Accidental Customer Discovery

The three-year regulatory battle that seemed catastrophic may have been strategically fortuitous. By being forced to delay election markets through 2022 and 2023, Kalshi had time to develop non-election categories and prove breadth before the 2024 explosion. Tarek notes that volume "will basically ebb and flow with whatever is in the news, whatever is trending on X" [00:45:51], but having been forced to survive without elections, they built resilience into multiple verticals. The darkest period—losing team members after the pocket veto—may have selected for exactly the resilient operators needed for the next phase. This suggests that regulatory resistance, while painful, can serve as forced customer discovery and team selection that improves long-term positioning.