Cap Table Control Versus SPV Liquidity
Sydecar and the new atomic unit of the private markets
Carta’s advantage is not better matchmaking, it is guaranteed settlement with company approval. Once a company keeps its cap table on Carta, Carta can check transfer restrictions, contact the right holders, move shares on its own ledger, update ownership records, and calculate tax and holding period details with far less manual work. That removes the biggest source of failed private trades, but only when the issuer chooses to open the door.
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Forge and similar marketplaces solved the access problem from the investor side by collecting buyer interest and using forwards or pooled vehicles. That helped trades happen without full issuer participation, but added legal complexity, counterparty risk, and heavier broker workflows. Carta took the opposite path, fewer surprises at closing, but much tighter dependence on company cooperation.
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The core wedge was cap table software and 409A valuations, not a trading venue. By 2020 Carta had become system of record for about a third of venture backed companies, which meant the hard part of secondaries, knowing who owns what, what can transfer, and how to reconcile the ledger, was already embedded in the product.
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That issuer dependence is strategic, not incidental. Private companies care more about cap table control than transaction volume, so issuer centric tenders from Carta and Nasdaq Private Market fit late stage companies that want controlled liquidity and price discovery, while open marketplaces fit smaller, opportunistic sales outside formal company programs.
The next battleground moves one layer above the cap table. As SPVs and fund interests become easier to create and trade, more liquidity can happen without touching the issuer’s shareholder list at all. That pushes Carta to stay the ownership infrastructure underneath the market, while new players try to own the tradable wrapper on top.