Buy¶
TL;DR
Loophole maintains an Open Bid per collection anyone can sell into, priced in $LOOP. Since all other marketplaces price in ETH, the fluctuating exchange rate creates a buy-side arbitrage opportunity.
How It Works¶
Presale Deposits ($LOOP) ──┬── 2% RUN Swap Fees ($LOOP)
│
▼
Open Bid
│
▼
Standing Offer ──→ Accepts NFT ──→ Vault Queue
│
│ Growth: Balance accumulates → bid increases along fixed checkpoints
│ Reset: After each purchase → reverts to previous checkpoint
Open Bid¶
Loophole maintains a perpetual standing bid (the Open Bid) for NFTs from each supported collection.
The Open Bid is priced in $LOOP, while NFT marketplaces predominantly price in ETH.
This currency mismatch creates the buy-side arbitrage surface: the fluctuating ETH/$LOOP exchange rate means the Open Bid's effective ETH value constantly shifts relative to external floor prices.
The Open Bid grows along a fixed series of checkpoints as swap fees accumulate in the acquisition pool. Checkpoints enforce linear increases, preventing the bid from spiking if a sudden surge of trading volume floods the pool. When an NFT is purchased, the bid resets to a previous checkpoint and begins accumulating again.
Anyone holding an NFT from a supported collection can sell it to the protocol by accepting that collection's Open Bid. The NFT enters the vault queue and waits for its Dutch auction.
Example¶
- The $PUDGYRUN Open Bid accumulates to 600 $LOOP.
- At a $LOOP price of 0.01 ETH, that bid is worth 6 ETH equivalent.
- The Pudgy Penguins floor on OpenSea sits at 5 ETH.
- An NFT trader buys a Pudgy on OpenSea for 5 ETH and sells it to the protocol for 600 $LOOP.
- Converting back through the $LOOP↔ETH pool (2% swap fee): 600 $LOOP × 0.98 × 0.01 = 5.88 ETH.
- Net profit: 5.88 − 5 = 0.88 ETH. The Pudgy enters the vault.