Aster fees & measured trading cost

DEX−10% fee via our link

Aster runs a live order book on-chain, so its advertised fee is only the opening bid — spread and depth decide the real price of a fill. FeeFloor measures Aster's futures market on BTC, ETH, SOL and XRP, currently $31.58 all-in for $100K BTC futures, ranked against every venue we track. We count only what a market order pays to execute — funding, withdrawals and gas are measured separately.

Markets measured: futures
Assets: BTC, ETH, SOL and XRP
Pricing: on-chain order book

Live verdict · $100K BTC futures · taker

Measured 22:57 UTC · updates every minute

Rank

of 49 venues

Measured cost

3.16 bps

fee + spread + slippage

On a $100K trade

$31.58

what you actually pay

Vs the floor

+$23.43

Lighter sets it at 0.81 bps

Trade on Aster with 10% lower fees

Code applied automatically · about $3.50 back per $100K trade · no extra cost

Trade on Aster−10% fees

Where the cost comes fromat $100K

Fee

3.15 bps3.50 bps

$31.50 on a $100K trade

The published taker fee, after the 10% referral discount our link applies.

Spread

0.01 bps

$0.08 on a $100K trade

Half the gap between best bid and ask. You pay it the instant your market order fills.

Slippage

0.00 bps

$0.00 on a $100K trade

Rounds to zero at this size — the order book is deep enough that your fill barely moves the price.

What our measurements show

Aster's rank moves with trade size: #4 of 49 at $100K, but #15 at $10M. Fees are flat — depth is not.

At $100K, Aster executes 34% cheaper than the median venue we track (3.16 bps vs 4.81 bps).

The cost here is fee-dominated: 3.15 bps of the 3.16 bps total at $100K is the venue's own fee, over a book tight enough that spread and slippage barely register.

At $10M, slippage alone reaches 15.02 bps — size this venue accordingly.

Patient traders do better here: resting maker orders pay 0.00 bps in fees against the 3.50 bps taker rate — $35.00 back on every $100K filled passively.

Signing up through our link takes 10% off the fee component — the discount is applied in every number above, and the struck-through figures show list price.

Cost by trade size

Fees are flat, but spread and slippage scale with size — so a venue that wins at $10K can be mid-pack at $10M. BTC futures, taker.

Size	Rank	Total cost	In dollars	Vs the floor
$10K	6	3.16 bps	$3.16	+$2.85 vs Lighter
$100K	4	3.16 bps	$31.58	+$23.43 vs Lighter
$1M	6	4.06 bps	$406.24	+$270.39 vs Lighter
$10M	15	18.18 bps	$18.2K	+$15.1K vs MEXC

Cheaper right now$100K BTC futures

Extended2.58 bps−$5.79vs

MEXC1.81 bps−$13.50vs

Lighter0.81 bps−$23.43vs

Aster: quick answers

What does a $100K BTC trade actually cost on Aster?

As of 2 August 2026, a $100K BTC futures market order on Aster costs $31.58 all-in (3.16 bps): 3.15 bps fee, 0.01 bps spread and 0.00 bps slippage. That ranks #4 of 49 venues we measure.

Is Aster better for small or large orders?

Right now, small orders: Aster ranks #6 at $10K and #15 at $10M. Fees are flat percentages, but slippage grows with size, so the answer shifts with the venue's live order-book depth.

Does Aster have hidden costs beyond the trading fee?

Yes — every order-book venue does. On top of the 3.50 bps list fee you pay the live spread (0.01 bps right now) and slippage that grows with order size (0.00 bps at $100K). Neither appears on the fee page, which is exactly why we measure them.

How do I get the 10% fee discount on Aster?

Sign up through the referral link on this page — it carries a live code that cuts the fee component by 10%. The discount never touches spread or slippage (those are paid to the market), and the toggle on our front page shows undiscounted list prices for comparison.

Ready to trade on Aster?

Our link cuts the fee 10% — about $3.50 back on every $100K trade, applied automatically.

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