Private Liquidity Is a Control Problem

Slow adoption showed that private share liquidity is not mainly a software problem, it is a control problem. CartaX asked companies to actively sponsor regular trading windows, approve buyers, and accept real market price discovery. That works for a narrow set of mature startups, but most secondary volume still comes from one off seller driven trades where founders, employees, investors, and the company all want different things.

• Carta built CartaX around the issuer. Companies could run periodic liquidity events on top of their cap table system, with controlled buyer access and cleaner settlement. The appeal was lower friction and better records. The catch was that many companies did not want to open a recurring market in their own stock.
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• Marketplace models like Forge and EquityZen fit actual market behavior better. They are built to chase fragmented supply, package smaller positions, and broker trades even when the issuer is not leading the process. That made them better matched to a market where most trades are not company directed.
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• Carta still matters because it owns the ledger. With about 35% of venture backed startups on its cap table software, it is positioned to handle approvals, transfer workflows, tax history, and settlement plumbing even if another broker sources the buyer and does the negotiation.
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The next phase is likely to separate infrastructure from intermediation. Carta can keep becoming the operating system for private equity ownership, while brokers, tender platforms, and newer software marketplaces compete to find buyers and structure liquidity events around that system of record.