Bluefin fees & measured trading cost

DEX

Bluefin 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 Bluefin's futures market on BTC, ETH and SOL, currently $112.60 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 and SOL
Pricing: on-chain order book

Live verdict · $100K BTC futures · taker

Measured 12:44 UTC · updates every minute

Rank

#45

of 49 venues

Measured cost

11.26 bps

fee + spread + slippage

On a $100K trade

$112.60

what you actually pay

Vs the floor

+$104.16

Lighter sets it at 0.84 bps

Trade on Bluefin at the measured cost

No markup, no paid placement — the ranking above is pure measurement.

Trade on Bluefin

Where the cost comes fromat $100K

Fee

3.50 bps

$35.00 on a $100K trade

The published taker fee — the only number most comparison sites show you.

Spread

2.89 bps

$28.95 on a $100K trade

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

Slippage

4.87 bps

$48.66 on a $100K trade

How far your fill walks down the live order book at this trade size. Grows with size, invisible on fee pages.

What our measurements show

Bluefin's rank moves with trade size: #44 of 49 at $10M, but #47 at $1M. Fees are flat — depth is not.

At $100K, Bluefin runs 134% above the median venue we track (11.26 bps vs 4.81 bps).

Only 3.50 bps of the 11.26 bps total at $100K is the advertised fee — the rest is spread and slippage the fee page never mentions.

At $10M the book genuinely runs out — the venue can't fill that size within 2% of mid, so treat it as a smaller-order venue.

Patient traders do better here: resting maker orders pay 1.00 bps in fees against the 3.50 bps taker rate — $25.00 back on every $100K filled passively.

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	45	6.49 bps	$6.49	+$6.19 vs Lighter
$100K	45	11.26 bps	$112.60	+$104.16 vs Lighter
$1M	47	42.09 bps	$4.2K	depth-limited
$10M	44	42.09 bps	$42.1K	depth-limited

Cheaper right now$100K BTC futures

dYdX10.86 bps−$3.99vs

SunX8.54 bps−$27.19vs

Jupiter7.00 bps−$42.61vs

Bluefin: quick answers

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

As of 2 August 2026, a $100K BTC futures market order on Bluefin costs $112.60 all-in (11.26 bps): 3.50 bps fee, 2.89 bps spread and 4.87 bps slippage. That ranks #45 of 49 venues we measure.

Is Bluefin better for small or large orders?

Right now, large orders: Bluefin ranks #45 at $10K and #44 at $10M. Fees are flat percentages, but slippage grows with size, so the answer shifts with the venue's live order-book depth.

Does Bluefin 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 (2.89 bps right now) and slippage that grows with order size (4.87 bps at $100K). Neither appears on the fee page, which is exactly why we measure them.

Ready to trade on Bluefin?

$112.60 all-in per $100K trade, measured minutes ago.

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