Limit, Take Profit & Stop Loss

Limit, Take Profit, and Stop Loss orders — executed on-chain by the Epsilon Router

The Limit tab of the trading terminal covers every "trade at my price, not the market's price" scenario. Four order modes, all executed on-chain by the Epsilon Router:

Mode	Direction	Triggers when…	Typical use
Limit Buy	Buy	Price drops to your level	"Buy the dip at my price"
Stop Buy	Buy	Price climbs to your level	"Buy the breakout confirmation"
Take Profit	Sell	Price climbs to your level	"Sell into strength at my target"
Stop Loss	Sell	Price drops to your level	"Cut the loss automatically"

Last updated: July 6, 2026.

How the modes map to the UI

The form adapts to the direction of your trade:

• Buying (selling a quote asset like WETH/USDC for a token): the form shows LIMIT BUY — "When price drops to …". Flip the Stop buy toggle to trigger on a rise instead.

• Selling (disposing of a token): the form shows TAKE PROFIT — "When price climbs to …". Flip the Stop sell toggle to turn it into a STOP SELL (stop loss) that triggers on a drop.

Quick preset buttons (±5% / ±10% / ±25%) set the trigger relative to the current market price, or type an exact price.

Limit buy

Creating an order

1. Open app.alienbase.xyz/swap and select the pair.

2. Switch the order form to Limit.

3. Enter the amount to sell (or use the 25% / 50% / Max buttons).

4. Set the trigger price — preset percentage or exact value.

5. If you want the stop variant, flip the Stop buy / Stop sell toggle.

6. Choose the expiry (default 1 week) and slippage (default 0.5%).

7. Review → confirm in your wallet.

The order, if created via signature, will not be visible onchain. You'll find it under Open orders in the positions panel — with type, amount, trigger price, live distance to trigger, and time to expiry — and its trigger level is drawn directly on the chart. Filled and expired orders move to Closed orders.

Open orders tab — a resting stop loss with its trigger line on the chart

Take Profit and Stop Loss together

A common pattern is bracketing a position: a Take Profit at your target and a Stop Loss below your entry, each for the same balance. Whichever triggers first sells the position; cancel the other from Open orders.

Take profit

Stop loss

How execution works

Orders are not held by a centralized operator. They rest in the Epsilon Router contract on-chain (0x303c…2580), and the Matcher — Epsilon's execution engine — fills them when the trigger condition is met, routing the fill through whichever venue gives the best price at that moment (same engine as a regular swap).

Because triggering depends on observed market price and the fill routes through live liquidity, your slippage setting applies at execution time — exactly like a swap placed at that moment.

Fees

Fees are tiered by asset class of the traded pair, plus a flat 0.05% Protocol execution fee on every fill (see Fees for the full schedule):

Order type	Stables	Blue chips	Everything else
Limit / Take Profit	0.01%	0.05%	0.10%
Stop Loss / Stop Buy	0.10%	0.20%	0.45%
+ Protocol fee	0.05%	0.05%	0.05%

Plus gas: you pay gas during approval, but not during order creation and cancellation; execution gas is handled by the Matcher.

Expiry

Every order has an expiry (default 1 week). If the trigger isn't hit before expiry, the order closes and will not be executed anymore. Epsilon does not lock your funds. Expired orders appear under Closed orders.

What happened to Carbon Limit & Range orders?

Earlier versions of Alien Base offered Limit and Range orders powered by Bancor's Carbon protocol. Those are deprecated with the Epsilon Router upgrade: existing Carbon orders remain visible (and withdrawable) from your Dashboard, but new ones can't be created in the current app. See Archive — Carbon Orders.

See also

• Trailing Stop — a stop level that follows the price up.

• DCA Orders — split an entry/exit over time instead of one price.

• Epsilon — the router + matcher underneath.

• Fees