By cryptoadmin Papertrade’s house liquidity pool faces an allegation that a trader is extracting profits by moving the Hyperliquid price used to settle its trades. The venue’s public data showed about $3.14 million in the pool and no queued payout debt as observers flagged the strategy on Oct. 10.
Pseudonymous observer El33 alleged that a trader opened large $ETH shorts on Papertrade, sold $ETH on Hyperliquid to depress its midpoint price by roughly 10 basis points, then closed the Papertrade positions for a profit. PaperDash’s view of the cited wallet showed about $1.73 million in realized trading gains. That figure does not establish that the gains resulted from manipulation.
The risk falls on the pool that pays winning traders. Papertrade settles synthetic BTC and $ETH positions against its own liquidity pool using Hyperliquid’s best-bid-and-offer midpoint—the price halfway between the highest buy order and lowest sell order—according to DefiLlama’s protocol description. If that pool cannot cover a winner’s profit, the profit enters a queue rather than becoming immediately available.
El33 described a second leg in which the trader switches from shorts to longs on Papertrade, then unwinds the Hyperliquid position. “Seems like someone currently draining Papertrade LP by Oracle manipulation,” the observer wrote, linking the wallet ending in `840e`. The characterization remains an allegation, not an established loss estimate.
Marcin Kazmierczak, co-founder of oracle provider RedStone, shared the post and called it an “Interesting Oracle manipulation strategy on Papertrade during weekends.” His post did not provide a separate transaction analysis.
Winning Trades Draw on a Separate Pool
Papertrade’s public protocol summary reported a positive pool balance and zero queued profits. PaperDash likewise displayed a $3.14 million LP balance and an empty payout queue. Those readings do not show that winning traders were waiting for payments at that snapshot.
The house reserve is distinct from customer deposits. As The Defiant previously reported, the $137.1 million in combined launch-day TVL included both trader balances and house liquidity; it was not all available to pay winners.
Papertrade administrator @izebel_eth explained that only user losses enter the pool, not their collateral. When a winning trade closes while a queue exists, the original collateral becomes available again, but “only the profits are queued.”
The team’s published launch controls give administrators the ability to pause new positions, freeze markets, change fee and impact parameters, and adjust opening headroom. Under those rules, existing positions in a frozen market can still close against the paused bid-offer midpoint.