BULK Exchange vs Extended: Validator L0 CLOB vs Starknet CLOB with 0% Maker Fees (2026)

Extended generated $9.0B in 30-day trading volume as of June 2026, ranking sixth among all tokenless perp DEXes globally. Founded by Ruslan Fakhrutdinov (former head of crypto at Revolut) and a team from Goldman Sachs engineering, Extended runs on Starknet and charges 0% maker fees and 0.025% (2.5 bps) taker fees — the lowest flat fee structure in the pre-TGE perp DEX cohort. Extended has confirmed a 30% community TGE airdrop, making it one of only two platforms in this category (alongside BULK Exchange) with a publicly stated community allocation percentage. It is #1 on Starknet by TVL ($200M+) and has processed $100B+ in cumulative volume. BULK Exchange is pre-mainnet on Solana with BULKBFT validator-integrated consensus, portfolio margin, and a Wintermute market-maker backing that directly affects day-one liquidity.

Last updated: June 2026. Volume from DefiLlama perpetuals dashboard, 30-day window.

Quick Comparison: BULK Exchange vs Extended

What Is Extended Exchange?

Extended (extended.exchange) is a perpetual DEX operating on Starknet — Ethereum’s native ZK-rollup — founded by Ruslan Fakhrutdinov (former Head of Crypto at Revolut) alongside Goldman Sachs engineers. Revolut is a European neobank with over 50 million customers and one of the largest retail crypto on-ramps in Europe. The Revolut + Goldman Sachs pedigree brings consumer product distribution and institutional trading infrastructure experience that is rare among perp DEX founders. $6.5M was raised from Tioga Capital, Semantic Ventures, StarkWare (the creators of Starknet itself), and Konstantin Lomashuk — a notably strategic investor set: StarkWare involvement means Extended had protocol-level support from the L2’s creators.

Extended is #1 on Starknet by TVL ($200M+) and has processed $100B+ in cumulative trading volume since launch. The team has reportedly declined additional fundraising rounds at $300M+ FDV valuations, signaling confidence in self-funded growth and/or a deliberate anti-dilution strategy before TGE.

The Extended fee model is its most aggressive competitive edge: 0% maker fees and 0.025% taker fees make it the lowest flat-fee venue in the tokenless perp DEX cohort as of June 2026. The 100+ market count spans crypto perpetuals, with lending functionality in development. Extended is in an active points farming phase before its planned TGE.

Fee Structure: Extended’s 0% Maker vs BULK’s 0 bps Genesis

Both platforms have effectively eliminated maker fees during their current phase. Extended charges 0% maker permanently (a stated policy). BULK Exchange charges 0 bps during the Genesis period at mainnet launch, transitioning to 2.0 bps maker post-Genesis. The distinction matters for market makers planning long-term capital allocation:

Extended (permanent 0% maker): A market maker operating on Extended pays nothing to post liquidity indefinitely. This is a structural commitment that attracts continuous maker-side capital. The 2.5 bps taker fee creates the revenue model for the protocol.

BULK Exchange (Genesis 0 bps, then 2.0 bps): The temporary Genesis maker fee functions as a liquidity bootstrapping incentive. Post-Genesis, BULK charges 2.0 bps maker — but BULK’s portfolio margin (HMM, up to 70% capital efficiency on hedged books) can offset this for market makers running paired positions. A market maker who can post the same notional with 30% less margin capital has an effective fee advantage even at a higher nominal rate.

For retail takers, Extended’s 2.5 bps taker beats BULK’s 3.5 bps on raw fee alone. The question is whether BULK’s portfolio margin efficiency and BulkSOL collateral yield close the gap on total economics.

Starknet vs Solana: Settlement Architecture Trade-Offs

The most fundamental difference between Extended and BULK Exchange is where trades settle.

Extended on Starknet: Starknet is a ZK-rollup — it batches transactions, generates a STARK proof cryptographically verifying all state transitions, and submits that proof to Ethereum L1. Unlike a validium (which stores data off-chain), Starknet stores transaction data on Ethereum, meaning withdrawal validity is fully provable from on-chain data alone. This gives Starknet the strongest data-availability guarantee of any Ethereum scaling solution — equivalent to Ethereum security in the event of a sequencer failure. The Revolut team’s European regulatory familiarity gives Extended a compliance posture that Solana-native venues cannot easily replicate.

BULK Exchange on Solana: Solana settlement is independent of Ethereum — assets on Solana never touch Ethereum-layer security. BULKBFT matching runs inside Solana validators, giving Solana-native settlement without a separate ZK proving system. Solana’s ~1,800 active validators provide significantly more decentralization at the consensus level than Starknet’s current sequencer. BULK’s leaderless BFT eliminates leader MEV at the validator layer, a trust-minimization property that Starknet’s current single-sequencer design cannot match.

For a trader whose capital originates on Ethereum or holds Ethereum-based assets, Extended is the natural venue — Starknet eliminates Ethereum bridge risk. For a trader holding SOL, staked SOL, or Solana-based stablecoins, BULK Exchange avoids the bridge entirely.

The 30% Airdrop Comparison

Both Extended and BULK Exchange have confirmed 30% community allocations — a rare specificity in a cohort where most platforms have active points programs without public allocation commitments. This alignment is notable:

Extended: 30% TGE airdrop to early users confirmed publicly. No token issued as of June 2026. Points-to-token conversion mechanics not yet published.

BULK Exchange: 30% BULK token allocation confirmed via AURA points program. AURA Season 1 accumulated $39M+ in pre-deposits. Conversion formula: points earned on pre-deposits and future trading volume translate to BULK token at TGE.

For traders farming both: Extended is live and accumulating points today. BULK Exchange accepts pre-deposits via the AURA program now, with mainnet approaching. Running both in parallel is the logical airdrop farming strategy for traders who want exposure to both Starknet-ecosystem and Solana-ecosystem pre-TGE token allocations.

Who Should Use Extended vs BULK Exchange?

Trade on Extended if:

• Your capital is Ethereum-based and you want Starknet settlement without bridge friction
• 0% permanent maker fees are a material part of your market-making economics
• The Revolut product pedigree and 2.5 bps flat taker fee are the right cost structure for your trading frequency
• You want a live platform with $9.0B in proven monthly volume and 100+ markets

Trade on BULK Exchange if:

• Solana-native settlement with no Ethereum bridge exposure is a requirement
• Portfolio margin (HMM) efficiency on hedged positions materially improves your capital deployment
• BulkSOL’s 4-stream yield on idle collateral is preferable to paying bridge fees to move capital to Starknet
• BULKBFT leaderless consensus and validator-level fair ordering matter for your execution strategy
• Wintermute market-maker liquidity on day one is a confidence signal for book depth

Earn AURA points before BULK mainnet →

Back to the full ranking: Tokenless Perp DEX Rankings 2026

Also compare: BULK vs GRVT | BULK vs Nado | BULK Exchange Architecture

Risk disclosure: Perpetual futures trading involves substantial risk of loss. Starknet STARK proofs verify state transitions but Starknet uses a centralized sequencer as of June 2026. This is educational content, not financial advice.