Papertrade Sees $3B Bitcoin Open Interest Amid Perpetual Exchange Launch

Papertrade, a fully on-chain perpetual futures exchange built on HyperEVM, launched on October 10, 2026, with Bitcoin futures open interest quickly reaching $3 billion.

Rapid Market Entry

Trading commenced at 10 a.m. ET (14:00 UTC). Within the first 10 minutes, the platform recorded $14.4 billion in notional trading volume. Ether futures open interest followed closely, reaching $2.66 billion, with activity predominantly concentrated in these two markets.

Open interest represents the total value of outstanding positions at a specific time, while volume includes all trades, both opening and closing. Both metrics are notional, reflecting the full value of leveraged positions rather than the actual capital deposited by traders. This distinction is crucial given Papertrade’s offering of up to 1,000x leverage on its synthetic perpetual contracts. At this leverage, a trader can control $1,000 in exposure with just $1 in margin, meaning substantial notional activity can be supported by a relatively small pool of actual deposits.

Prior to its launch, the exchange had secured pre-deposits estimated between $85 million and $138 million from over 11,000 addresses.

Novel Trading Mechanism

Papertrade eschews a traditional order book. Instead, positions are opened and closed atomically, in a single transaction, bypassing the need to match against existing orders. Pricing is derived from the midpoint of Hyperliquid’s best bid and offer, a design intended to mitigate slippage and eliminate conventional trading fees.

To manage anticipated launch-day congestion, initial trades were processed through Papertrade’s proprietary frontend, with support from whitelisted relayers. The platform incorporates built-in risk management, featuring $1 billion in open-interest headroom for each market side and individual position caps of $10 million in atomic size.

Unique Liquidity Model

A distinctive feature of Papertrade is its house liquidity pool, which began empty. This pool is designed to grow as traders incur losses, with losing positions funding the pool, which in turn pays out winning traders. Consequently, the model relies on trader losses or delayed settlement to finance payouts. The combined trader balances and house liquidity are not entirely available to cover winning trades.

The exchange also implements a profit haircut, an asymmetric fee on profit and loss inherited from earlier trading models, meaning winners may not receive their full gross gains.

Papertrade’s native token, PAPER, was launched with no initial supply and is minted only when traders realize losses. While the current liquidity pool holds less than $2 million, the protocol generates 100 PAPER for every $1 lost, a rate that decreases as the pool expands. Initially, PAPER transfers are restricted to staking purposes.

Dependency and Risk Factors

Operating on HyperEVM and referencing Hyperliquid for pricing, Papertrade effectively overlays a new risk model onto an existing market’s price discovery mechanism. The reliability of its pricing is directly tied to the reference market, meaning any disruption on Hyperliquid could impact Papertrade’s contracts.

The zero-initialized house liquidity pool is sustainable when traders experience aggregate losses. However, a significant, unidirectional market movement in Bitcoin or Ether could invert this dynamic, with payouts becoming contingent on delayed settlement and the haircut mechanics.