CartaX Didn't Create Liquidity
Carta and the future of liquidity
CartaX mattered less as a business line than as proof that Carta could turn cap table software into a true private market, and the weak volume suggests that leap never really happened at scale. Carta had already built tender offers into a $1B plus annual transaction line, but CartaX asked companies to do much more, regular disclosures, recurring auctions, and explicit price discovery. Most private companies were not ready to make that a standing workflow, which left Carta with the infrastructure but not enough issuer adoption to create a liquid marketplace.
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CartaX was designed as an issuer controlled market, not a free flowing exchange. Companies would choose who could buy, who could sell, how much could trade, and how often auctions ran. That structure solved trust and cap table control problems, but it also made adoption slower because each issuer had to actively opt in and operationalize the process.
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The stronger product in practice was tender offers. Carta had already processed hundreds of tender transactions and billions in volume, but even inside Carta's own 2020 framing, tender offers were slow, episodic, and often undersubscribed. That helps explain why secondary volume could remain strategically interesting yet still too small to move a company of Carta's size.
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Competitively, CartaX was trying to replace brokers and fragmented marketplaces with software tied directly to the cap table. But much of the real secondary market still happens through ad hoc, broker led trades outside structured programs. That meant CartaX was optimized for the cleanest slice of the market, not necessarily the biggest one.
Going forward, the winning model is likely to separate trusted infrastructure from messy transaction origination. Carta can still be central by owning the system of record and transfer workflow, while brokers, funds, and new software layers handle discovery, negotiation, and distribution. The deeper implication is that private market liquidity will emerge as a stack, not as one company flipping on a private stock exchange overnight.