In a competitive landscape where prediction markets are rapidly gaining traction, the CEOs of Kalshi and Polymarket find themselves not only vying for dominance but also joining forces in a strategic investment. Both Tarek Mansour of Kalshi and Shayne Coplan of Polymarket have backed a new venture firm, 5c(c) Capital, which aims to raise up to $35 million to invest in startups within the prediction market space.
5c(c) Capital, named after a clause in legislation regulating commodities and derivatives, is co-founded by two early Kalshi employees: Adhi Rajaprabhakaran, who was the second trader at Kalshi’s affiliated market maker, and Noah Zingler-Sternig, the former head of operations at Kalshi. The venture is attracting attention not only from industry leaders but also from prominent venture investors. Among its early backers are notable figures such as Marc Andreessen, through his fund Moneta Luna; Micky Malka, founder of Ribbit Capital; and Kyle Samani, previously a managing partner at Multicoin Capital.
Despite the ongoing rivalry between their platforms, both Mansour and Coplan’s involvement signifies a unique moment where competition takes a backseat to collective opportunity. Rajaprabhakaran has opted not to comment on the new venture, and while representatives for Andreessen’s firm declined to provide remarks, a Kalshi spokesperson confirmed Mansour’s investment. Samani highlighted the importance of building infrastructure around prediction markets, which further cements the potential significance of the 5c(c) Capital initiative.
The rise of prediction markets coincides with a wave of investor enthusiasm, particularly showcased by Kalshi’s efforts to secure $1 billion at a staggering valuation of $22 billion, while Polymarket aims for a similar valuation of around $20 billion. These platforms enable traders to bet on a wide variety of topics, from cryptocurrency prices to sporting events, making them appealing to a wide audience.
However, the rise has not been without challenges. State governments are increasingly scrutinizing prediction markets, especially as both companies expand into sports betting. Regulators argue that these platforms bear a closer resemblance to traditional gambling and must thus comply with stringent state laws. Kalshi currently faces approximately 20 federal lawsuits regarding its legality, compounded by recent criminal charges filed by the Arizona Attorney General.
Despite this tumultuous legal backdrop, the founders of 5c(c) Capital are optimistic, framing the current climate as a “generational investment opportunity.” Their strategy involves backing around 20 companies over the next two years, including market makers and developers of prediction market indices, among others. The firm is set for its first close within the upcoming month, suggesting a rapid progression toward its ambitious goals.
Elena Silenok, the founder and managing partner of Moneta Luna, expressed her enthusiasm for Rajaprabhakaran’s capabilities as an investor, underscoring the confidence that high-profile backers have in this new venture fund. As the prediction market ecosystem evolves, all eyes will be on how 5c(c) Capital navigates this complex landscape and which companies it chooses to empower in its quest for innovation.


