# Mapping the Perpetual Trading Ecosystem

> A comparative analysis of perp trading venues across design, GTM and microstructure

- Source: https://castlelabs.io/research/reports/mapping-the-perpetual-trading-ecosystem
- Published: October 2026, 81 pages; data as of September 2026
- Authors: Noveleader, Francesco
- Publisher: Castle Labs (https://castlelabs.io)
- Full PDF (free, email required): https://docsend.com/view/uwe948jmc9hqmkkd

## Thesis

Onchain perps are at a record $15.18 billion in open interest, and DEXs now handle over 13% of perp volume, up from 4% in 2024. The report maps the venues behind that growth across pooled liquidity, high-performance order books, RWA and TradFi perps, prediction-market perps and trading terminals, then compares turnover, take rate, execution cost, depth, funding and index quality across Hyperliquid, Lighter, Variational, TradeXYZ, Ondo, QFEX, Entropy, Binance, Bybit and OKX.

## Key findings

- Hyperliquid holds over 56% of onchain perp open interest, followed by Aster (9.7%), Variational (6.2%) and Lighter (5.7%), and more than 261 perp DEXs have launched since Hyperliquid.
- RWA perps have grown more than 100x since October 2025 to $123 billion in August 2026 volume, and TradeXYZ and Variational account for 90% of it.
- At $1 million, Hyperliquid had the lowest median slippage of the five venues tested on crypto majors, 3.7 bps against 3.8 bps on Binance, and after fees it was 1% to 24% cheaper to trade than the centralised median. Lighter was over 60% cheaper because it charges no taker fee.
- For TradFi perps at $100,000, TradeXYZ had the tightest spread (0.35 bps) and Lighter the lowest cost to open (1.04 bps). On weekends, venue indices diverged by up to 30 bps and Lighter's WTI funding reached +95% a year for longs.
- Pre-IPO perps on Anthropic and OpenAI are the thinnest markets measured: venue prices differed by 379 and 569 bps, no venue held more than $160,000 within 10 bps of mid, and holding a long cost from about 1% to 33% a year depending on the venue.

## Key numbers

- $15.18B: Record open interest across onchain perp venues
- 56%+: Hyperliquid share of onchain perp open interest
- 13%+: Share of perp volume on DEXs, up from 4% in 2024
- $123B: RWA perp volume in August 2026
- 3.7 bps: Hyperliquid median slippage on a $1M crypto order
- 261+: Perp DEXs launched since Hyperliquid

## What Is a Perp DEX?

A perp DEX is an onchain exchange for perpetual futures: leveraged contracts that track an asset's price and never expire. Instead of settling on a date, a perp uses a funding rate, paid between longs and shorts, to keep the contract price close to the underlying index. Traders keep custody of their collateral and positions settle onchain.

Perp DEXs now handle over 13% of perp volume, up from 4% in 2024, and onchain perp open interest reached a record $15.18 billion. More than 261 perp DEXs have launched since Hyperliquid. Most use one of three designs.

**The three main perp DEX designs**

| Design | How it works | Examples |
| --- | --- | --- |
| Pooled liquidity | Traders trade against a shared liquidity pool rather than another trader. This was the category's first model. | GMX, GMTrade, Jupiter Perps |
| High-performance order book | A dedicated appchain or rollup runs a CEX-style order book at CEX speed while users keep self-custody. | Hyperliquid, Lighter, edgeX, Pacifica |
| Request for quote (RFQ) | The trader requests a price, a market maker quotes it, and the trade is booked in an isolated settlement pool. There is no order book. | Variational |

Source: Castle Labs, Mapping the Perpetual Trading Ecosystem (October 2026)

## Hyperliquid vs Lighter vs Variational

The three venues take different routes to the same market. Hyperliquid has the deepest book, Lighter is the cheapest to trade on standard orders, and Variational quotes prices instead of running an order book.

**Hyperliquid, Lighter and Variational compared**

|  | Hyperliquid | Lighter | Variational |
| --- | --- | --- | --- |
| Design | Order book on its own L1, secured by HyperBFT | Order book on an app-specific ZK-rollup with an Ethereum escape hatch | RFQ with no order book; the Omni Liquidity Provider (OLP) is the only maker |
| Share of onchain perp OI | 56%+ | 5.7% | 6.2% |
| Avg daily volume | $7.90B | $1.80B | $1.29B |
| Avg daily open interest | $6.79B | $629.4M | $772.9M |
| Turnover | 1.16x a day | 2.87x a day | 1.66x a day |
| Fees | Taker fee; 2.6 bps take rate | No fee on standard accounts; 1 bp on advanced order types; 0.8 bps take rate | No maker or taker fees; earns from the spread |
| Cost to open, $100k BTC | 4.71 bps | 0.41 bps | Not tested |
| Liquidation backstop | HLP vault, then auto-deleveraging | Lighter Liquidity Pool (LLP) vaults | If OLP is liquidated, affected users receive the liquidation penalty |
| Token | HYPE; 90% of USDC reserve yield routed to buybacks via AQAv2 | LIT, launched December 2025; fee-funded buybacks and burns | Points program ahead of its token launch |

Source: Castle Labs, Mapping the Perpetual Trading Ecosystem (October 2026)

In short: Hyperliquid suits size on crypto majors, with the lowest median slippage at $1 million of the five venues tested, Binance included. Lighter suits cost-sensitive traders on standard orders because it charges no taker fee. Variational suits RWA trading with size, where its slippage barely rose as orders grew, and its swaps charge a daily carry fee instead of funding.

## Best Perp DEXs by Open Interest

Open interest is the clearest single measure of where traders keep capital. The table below ranks perp DEXs by current open interest and updates daily from DefiLlama. In the report's September snapshot, Hyperliquid held over 56% of onchain perp open interest, followed by Aster (9.7%), Variational (6.2%) and Lighter (5.7%).

Open interest is only half the picture. Turnover shows whether that capital trades or churns: QFEX, Hyperliquid and Variational turn over less than 2x a day, while Jupiter Perps, Pacifica and GMTrade trade 7x to 9x their open interest daily, consistent with points programs and airdrop farming.

## Data tables

**Perp venue turnover and take rate**

| Venue | Avg daily volume | Avg daily OI | Turnover (x/day) | Take rate |
| --- | --- | --- | --- | --- |
| QFEX | $182.4M | $217.6M | 0.84x | Not tracked |
| Hyperliquid | $7.90B | $6.79B | 1.16x | 2.6 bps |
| Variational | $1.29B | $772.9M | 1.66x | Not tracked |
| Polymarket Perps | $94.6M | $49.3M | 1.92x | Not tracked |
| edgeX | $1.38B | $572.7M | 2.42x | 0.9 bps |
| GMX | $86.9M | $32.2M | 2.70x | 2.7 bps |
| Lighter | $1.80B | $629.4M | 2.87x | 0.8 bps |
| Ondo Perps | $133.4M | $46.1M | 2.89x | Not tracked |
| Extended | $258.9M | $87.5M | 2.96x | 2.33 bps |
| Jupiter Perps | $237.8M | $34.8M | 6.83x | 3.7 bps |
| Pacifica | $402.3M | $48.5M | 8.30x | 3.0 bps |
| GMTrade | $796.6M | $90.6M | 8.79x | 0.4 bps |
| Kalshi | $886.0M | $30.7M | 28.86x | Not tracked |

Source: DefiLlama daily volume, open-interest and fee series

**Crypto perps at $100,000: centralised median vs Hyperliquid vs Lighter**

| Asset | Slippage, CEX | Slippage, Hyperliquid | Slippage, Lighter | Cost to open, CEX | Cost to open, Hyperliquid | Cost to open, Lighter |
| --- | --- | --- | --- | --- | --- | --- |
| BTC | 0.07 bps | 0.21 bps | 0.41 bps | 5.07 bps | 4.71 bps | 0.41 bps |
| ETH | 0.10 bps | 0.32 bps | 0.83 bps | 5.10 bps | 4.82 bps | 0.83 bps |
| SOL | 1.07 bps | 1.06 bps | 1.73 bps | 6.07 bps | 5.56 bps | 1.73 bps |
| ZEC | 4.06 bps | 2.37 bps | 2.53 bps | 9.06 bps | 6.87 bps | 2.53 bps |
| HYPE | 3.24 bps | 2.43 bps | 2.20 bps | 8.24 bps | 6.93 bps | 2.20 bps |

Source: Venue public APIs and order books, 23 September 2026

**TradFi perps: cost to open at $100,000**

| Venue | Spread | Slippage at $100k | Average taker fee | Cost to open at $100k |
| --- | --- | --- | --- | --- |
| TradeXYZ | 0.35 bps | 0.84 bps | 2.06 bps | 2.90 bps |
| Lighter | 0.65 bps | 1.04 bps | 0 | 1.04 bps |
| Ondo | 1.61 bps | 2.41 bps | 2.5 bps | 4.91 bps |
| QFEX | 3.32 bps | 2.40 bps | 6.43 bps | 8.83 bps |
| Variational | 4.66 bps | 2.82 bps | 0 | 2.82 bps |

Source: Venue public APIs and order books, 23 September 2026

## Charts

- Crypto trading volume: derivatives vs spot (PDF page 6): Derivatives made up 82.58% of crypto trading volume across centralised and onchain venues over 30 days. On most major venues, perp trading is 4.7x spot.
- Perp DEX market share over time (PDF page 7): The market moved from a few leaders, first dYdX and then GMX, to many venues sharing it. Hyperliquid has led since launch, apart from a short spell in November 2025 when Lighter took the top spot.
- Perp DEX monthly trading volume (PDF page 11): Monthly perp DEX volume peaked at $1.36 trillion in October 2025 and cooled through 2026.
- Monthly onchain RWA perp volume (PDF page 10): RWA perps reached $147.5 billion of volume in July 2026, 19.6% of all onchain perp volume. At its peak, TradeXYZ's listings drove half of Hyperliquid's volume.
- Perp DEX open interest by protocol (PDF page 10): Hyperliquid holds 56.8% of the $14.64 billion of open interest across perp DEXs, followed by Aster (9.7%), Variational (6.2%) and Lighter (5.7%).
- Hyperliquid builder code fees by frontend (PDF page 17): Phantom leads with 24.0% of the $109.57 million in all-time builder code fees paid to outside frontends.
- Slippage vs total cost on a $100K crypto order (PDF page 64): Binance, Bybit and OKX look far ahead on slippage alone. Add the taker fee, which is what a trader actually pays, and Hyperliquid and Lighter close most of the gap.
- Cost to open a $100K position: slippage vs taker fee (PDF page 66): A 5 bps taker fee on a $100K BTC order costs $50, about 75x the slippage. Hyperliquid was 7% to 24% cheaper than the centralised median on BTC, ZEC and HYPE; Lighter was over 60% cheaper with no taker fee.
- TradFi perps: TradeXYZ vs centralised venues (PDF page 68): On TradFi assets, TradeXYZ holds more resting depth near the mid price, while Binance is tighter on slippage. For crypto, BTC funding already runs at 1.9% to 7.6% a year on every venue.
- Price dispersion across venues: weekdays vs weekends (PDF page 72): Crypto prices agree across venues all week. RWA prices drift apart at weekends, when the futures or equity markets they reference are closed.
- Price dispersion on pre-IPO perps (PDF page 76): With no reference price, venues disagree by 379 bps on Anthropic and 569 bps on OpenAI, against 0.1 bps on NVDA. Holding an OpenAI long costs about 33% a year in funding; QFEX paid about 1%.

## Questions

### What is a perp DEX?

A perp DEX is an onchain exchange for perpetual futures, leveraged contracts that track an asset's price and never expire. A funding rate paid between longs and shorts keeps the contract close to the index price, and traders keep custody of their collateral. Perp DEXs now handle over 13% of perp volume, up from 4% in 2024, and the largest is Hyperliquid.

### Which perp DEX has the most open interest in 2026?

Hyperliquid. In our September 2026 data it held over 56% of onchain perp open interest, followed by Aster (9.7%), Variational (6.2%) and Lighter (5.7%). Hyperliquid's own open interest reached a record $9 billion, on roughly $180 billion to $250 billion of monthly volume through 2026. Its turnover of 1.16x a day means traders hold positions rather than churn them.

### Hyperliquid vs Lighter: which is cheaper to trade?

Lighter is cheaper for standard orders because it charges no taker fee. On a $100,000 BTC order, Hyperliquid's slippage was 0.21 bps against 0.41 bps on Lighter, but Hyperliquid's total cost to open was 4.71 bps with its fee, while Lighter's was 0.41 bps. Hyperliquid has the deeper book: at $1 million it had the lowest median slippage of the five venues we tested, including Binance, Bybit and OKX.

### Are onchain perp DEXs as liquid as Binance?

On the largest crypto assets, close. Centralised books were about 3x tighter than Hyperliquid on BTC and ETH at $100,000, but the gap shrinks with size, and once taker fees are included Hyperliquid was 1% to 24% cheaper to trade than the centralised median across BTC, ETH, SOL, ZEC and HYPE. Hyperliquid also matched or exceeded centralised resting depth within 10 bps on four of the five assets.

### How does Variational work?

Variational is an RFQ protocol with no order book. On Omni, each trader has an isolated settlement pool with the Omni Liquidity Provider (OLP), which prices from CEX, DEX and TradFi data and hedges its exposure on external venues. Variational charges no maker or taker fees and earns from the spread, and RWA trading is now over 50% of its volume.

### What is the difference between Variational swaps and perps?

Perps use funding rates to keep the contract close to the index price. Variational swaps track an asset's total return and charge a carry fee once a day at 5pm EST, based on the real cost of financing the underlying in traditional markets, such as SOFR for US equities. Long swap positions receive dividends and short positions pay them.

### Which venue is best for trading stock and commodity perps onchain?

It depends on size and timing. In our weekday US-hours test across seven TradFi assets, TradeXYZ had the tightest spread (0.35 bps) and the lowest slippage at $100,000 (0.84 bps), while Lighter was cheapest to open at 1.04 bps because it charges no fee, and Variational's slippage barely rose with size. On weekends, venue indices diverged by up to 30 bps and some venues kept charging funding, so carry cost matters more than execution.

### What is HIP-3 on Hyperliquid?

HIP-3 lets anyone run their own perp exchange on HyperCore after staking 500,000 HYPE. The deployer sets markets, oracles and risk parameters, and validators can slash the stake for misconduct. HIP-3 markets bring about 30% of Hyperliquid's net volume, TradeXYZ accounts for over 98% of HIP-3 volume, and deployers keep up to 50% of the fees their markets generate.

### How do RWA perps trade when stock markets are closed?

Each venue applies its own pricing rule. TradeXYZ switches to order-book pricing smoothed by a 30-minute EWMA inside dynamic discovery bounds, Ondo lets the oracle move within roughly 5% of the last TradFi close, QFEX applies hard price limits and charges no funding while the reference market is shut, and Variational swaps wait for the market to reopen before liquidating.

## Method

Castle maps each venue's architecture, liquidation backstop and token value accrual, with interviews from the Lighter, Variational and Ondo teams. Turnover and take rate use DefiLlama volume, open-interest and fee series for 17 August to 15 September 2026. The microstructure analysis reads live order books, index and mark prices, funding and fee schedules from public APIs for Binance, Bybit, OKX, Hyperliquid, Lighter, TradeXYZ, Entropy, Ondo, Variational and QFEX at the same instant, every 45 to 60 seconds for 10 to 20 minutes per session, across crypto, TradFi and pre-IPO baskets, with TradFi split into weekday and weekend sessions. Execution cost is slippage plus the standard taker fee at $1,000, $10,000, $100,000 and $1 million. Depth is resting size within 10 bps of mid.

## Sources

- [DefiLlama perp volume and open interest](https://defillama.com/perps)
- [Hyperliquid HIP-3 builder-deployed perpetuals](https://hyperliquid.gitbook.io/hyperliquid-docs/hyperliquid-improvement-proposals-hips/hip-3-builder-deployed-perpetuals)
- [trade[XYZ] discovery bounds](https://docs.trade.xyz/perp-mechanics/discovery-bounds)
- [Lighter protocol whitepaper](https://assets.lighter.xyz/whitepaper.pdf)
- [Variational swaps documentation](https://docs.variational.io/omni/trading/swaps)
- [Variational Omni Liquidity Provider (OLP)](https://docs.variational.io/omni/the-omni-liquidity-provider-olp)