Long and short
Kawase Margin opens a leveraged long or short on cirBTC, WETH or EURC through your own Aave V4 account on Arc mainnet, as one transaction you confirm by sliding, with the liquidation price shown first and an optional take-profit and stop-loss.
Kawase Margin lets you bet on a price going up (long) or down (short) with more than you put in. It runs on Aave V4 on Arc mainnet, through your own Aave account: no exchange account, no flash loan, and nothing held by Kawase. Aave V4 has no testnet, so on testnet the screen explains this and offers the switch.
Long or short, step by step




Markets → Long or short shows Arc's majors with leverage, live: the price, its move since the hour's open ("Longs ahead since 8:45 PM") and how far each side goes.
- A market, its live line, and who's ahead
- Long: up to the market's leverage, or Not offered
- Short
Pick the market, read the chart (one hour to one month), see your open positions, then Long or Short.
- cirBTC, WETH, EURC: live prices
- 1H · 1D · 1W · 1M
- Long cirBTC, up to 3.4×
- Short cirBTC, up to 2.4×
Choose a side, type your margin, tap a leverage. The strip under it shows what you put in, the exposure and the liquidation price before anything is signed.
- Long or short
- Leverage, capped by the market
- You put in · exposure · liquidation price
Fold open Take-profit · stop-loss to close by itself at +10% or +25%, or −5% or −10%. Kawase closes it with a permission your wallet signs on Arc, and closing the position switches that permission off with the same signature. You confirm the whole ticket by sliding, then Face ID.
- Take-profit and stop-loss presets
- Slide to open (here: sign in to trade)
The captures are a guest's view of mainnet: the last step asks a guest to sign in. Signed in, it reads Slide to open Long, and the ticket follows the transaction from checking to final. Any change to the plan resets the slide, so you never confirm numbers you didn't see.
How a position is built
- Long X: your USDC margin is swapped to X and supplied as collateral, then Kawase borrows USDC against it, swaps it to more X and supplies that, a few times in a loop.
- Short X: your USDC is supplied as collateral, then Kawase borrows X, swaps it to USDC and supplies that, in a loop.
- Closing runs it backwards: withdraw, swap, repay, then the rest comes back to your wallet.
The whole position opens or closes as one transaction from your own wallet (an EIP-7702 batch). The swap legs come from KyberSwap with checked calldata. Each loop borrows only down to a safe health at oracle prices, and the account opens at a health of 1.10 or more. Before you slide, the whole batch is simulated on the chain from your address; a position that would fail stops there.
Markets and leverage
Markets come from Aave V4's live reserves on Arc: cirBTC (Circle's Bitcoin) and WETH, long and short; EURC, short only, because EURC can't be collateral on Aave V4. Leverage is capped by each asset's collateral factor (today about 3.4× long cirBTC, 4.1× long WETH and 2.4× short). Margin is paid in USDC.
Your positions
Each position has its own page: P&L split into price and borrow interest, entry and mark price, size, equity, a health gauge and the liquidation price, and Close 25% · 50% · 75% · All, which drafts the unwind into the same ticket ("Slide to close"). Home warns you when an open position's health drops under 1.25 or liquidation is within a 10% move.
Long and short
What runs today
- Kawase Margin on Arc mainnet: a leveraged long or short through the person's own Aave V4 account, opened and closed as one batch they confirm by sliding; markets come from Aave V4's live reserves (today cirBTC and WETH both ways; EURC short only, because EURC cannot be collateral there)
- margin is paid in USDC; leverage is capped by the asset's collateral factor so the account opens at health 1.10 or more (about 3.4× long cirBTC, 4× long WETH, 2.4× any short at today's factors); the card shows the liquidation price and borrow rate
- positions with live P&L, health and liquidation price; closing 25%, 50%, 75% or all
- take-profit and stop-loss on any position, set on the position page or in chat: Kawase closes the whole position when the price gets there, checked on a live Uniswap quote (a stop-loss sells within 3% of the oracle, otherwise the person is told), under five grants signed once that can only close into their own wallet; available where Uniswap on Arc can carry the size (cirBTC, EURC; WETH's pool is too thin today)
- health alerts by push and email when the account falls under 1.5 and under 1.2
Not yet
- paying margin in a token other than USDC
- Hibachi perps
- practice on testnet (Aave V4 is mainnet only)
- meme coins (no lending market lets you short them)