GMX is the leading perpetual DEX on Arbitrum and Avalanche, known for its unique liquidity provider (LP) model. In 2023, GMX upgraded from the multiāasset GLP (GMX Liquidity Provider) token to version 2 ā introducing singleāasset GM pools. Instead of being exposed to a basket of assets, LPs can now provide liquidity for a single asset (e.g., only ETH, only BTC, only ARB) and earn a share of the trading fees and price impact from perpetual traders. This change fundamentally altered the riskāreturn profile. In this guide, we dissect GMX v2 mechanics, GM token yield sources, the delta exposure you take on, and whether being an LP is still a smart strategy in 2026.
Essential DeFi & Perpetual Exchange Guides
- What is GMX v2 and why the upgrade from GLP?
- GM pools explained: singleāasset vs multiāasset
- How GM pools generate yield (fees, price impact, spreads)
- Delta exposure: the hidden risk of being an LP
- Riskāreturn profile of different GM pools (BTC, ETH, ARB, WAVAX)
- Historical yield data (2025ā2026) and what drives APY changes
- Should you provide liquidity or simply hold the asset?
- Frequently asked questions about GMX v2
š What is GMX v2 and Why Did It Replace GLP?
GMX v2 launched in midā2023 as a major upgrade to the original GMX protocol. The most significant change was replacing the GLP token (a multiāasset pool containing BTC, ETH, LINK, UNI, and stablecoins) with isolated GM pools for individual assets. Under GLP, LPs had to accept exposure to a fixed basket. If you wanted to earn fees from BTC perp traders, you were also forced to hold ETH, altcoins, and stablecoins. This created unwanted diversification and sometimes diluted returns.
With v2, each asset now has its own GM (Glp Manager) pool ā e.g., GMX's GM:ETH pool holds only ETH, the GM:BTC pool holds only WBTC, the GM:ARB pool holds ARB, and on Avalanche, GM:WAVAX holds WAVAX. LPs can choose exactly which asset they want to provide liquidity for, and their returns are driven purely by trading activity on that specific market. This isolates risk and allows for more sophisticated strategies (e.g., deltaāneutral hedging).
Key improvement: no more forced diversification
Under GLP, if you wanted BTC exposure but ETH underperformed, you still suffered ETH drawdowns. GM pools solve that: you only take exposure to the asset you choose. This makes GMX v2 attractive for LPs who want to hedge their spot holdings or target specific markets.
š§ GM Pools Explained: How SingleāAsset Liquidity Works
Each GM pool is a singleāasset smart contract that serves as the counterparty for perpetual traders on that market. When a trader opens a long position on ETH perp, they effectively borrow ETH from the GM:ETH pool and pay funding + opening/closing fees. If the trader goes short, they borrow the quote asset (usually USDC) from the pool. The pool's assets are used to settle PnL. The pool's size determines the maximum open interest (OI) allowed. To protect LPs, GMX limits OI to a multiple of pool size (e.g., max OI = 2x pool size).
To become an LP, you deposit the underlying asset (e.g., ETH) into the GM:ETH pool and receive GM tokens representing your share. These GM tokens accrue value over time as fees and price impact are added to the pool. When you redeem, you get back the underlying asset plus accumulated yield (minus any negative PnL from traders if the pool has net losses, though that is rare because fees and spread usually outweigh trader PnL).
š GM Pools Available on GMX v2 (Arbitrum, 2026)
| Pool | Underlying asset | Max OI (Ć pool size) | Avg daily volume |
|---|---|---|---|
| GM:ETH | ETH / WETH | 2.5x | $180M |
| GM:BTC | WBTC (BTC.b on Avalanche) | 2.5x | $210M |
| GM:ARB | ARB | 1.5x | $35M |
| GM:LINK | LINK | 1.5x | $22M |
| GM:WAVAX (Avalanche) | WAVAX | 2.0x | $55M |
š° How GM Pools Generate Yield: Three Mechanisms
GM pool returns come from three primary sources, all paid by perpetual traders:
- Opening/closing fees: Traders pay a fee (0.05% to 0.1% of position size) when opening or closing a position. 70% of these fees go to the GM pool, 30% to GMX stakers.
- Price impact (slippage): When a trader opens a large position, the pool's price oracle (Chainlink + timeāweighted average) adjusts, and the trader pays a price impact fee. This directly adds to the pool's assets.
- Swap fees: GM pools also support spot swaps between the asset and USDC (e.g., ETH ā USDC) via the pool, generating additional swap fees (0.1% to 0.3%).
Importantly, GM pools do not earn funding rates ā funding is paid between longs and shorts, not to the pool. However, the pool benefits indirectly because funding keeps the perpetual price close to spot, encouraging more trading volume.
On a typical day, a large GM pool like GM:ETH might earn 0.07ā0.12% of pool value in fees. Annualised, that's 25ā45% APY. However, this is gross yield before considering delta exposure (see next section).
Realāworld yield example (April 2026)
GM:ETH pool size = $420M, daily fees = $380,000 ā 0.09% daily ā ~33% annualised. GM:BTC pool size = $560M, daily fees = $510,000 ā 0.091% daily ā ~33% annualised as well. Smaller pools like GM:ARB can see 0.15ā0.20% daily due to lower liquidity and higher relative OI, but also higher risk.
ā ļø Delta Exposure: The Hidden Risk of Being an LP
Many LPs mistakenly think they are earning "riskāfree" yield. In reality, GM pool LPs take on delta exposure ā their net PnL is not just the fees, but also the price movement of the underlying asset relative to the pool's liabilities. Because the pool acts as the counterparty to traders, it has a net position: if more traders are long than short, the pool is effectively short that asset; if more traders are short, the pool is long.
Let's break it down with a simplified example:
- GM:ETH pool has 10,000 ETH. Traders open 5,000 ETH worth of long positions and 2,000 ETH worth of short positions. Net long OI = 3,000 ETH. The pool is short 3,000 ETH (it owes that to longs if price rises).
- If ETH price increases 10%, the pool loses 10% on the net short position = 300 ETH loss. This loss is deducted from the pool's assets, reducing LP returns.
- If ETH price falls 10%, the pool gains 300 ETH, boosting returns.
This means that GM pool returns are not just the fees ā they are fees plus/minus the PnL from the pool's net exposure to the asset. The net exposure changes constantly as traders open and close positions. In practice, the pool's net exposure is usually small relative to pool size (often <10% of pool value), but in periods of extreme directional bias (e.g., a strong bull run where most traders are long), the pool can become heavily net short, leading to significant losses if price continues up.
GMX v2 mitigates this with dynamic fee adjustments and OI caps, but delta risk remains the primary risk for LPs.
Real risk: The bull trap of 2025
In March 2025, a sharp 25% ETH rally caught GM:ETH LPs off guard. Net OI had reached 18% of pool size (longābiased). The rally caused a ~4.5% loss to the pool, wiping out two months of fees in a week. LPs who had not hedged saw negative returns despite high APY. This underscores that GM pools are not a stablecoin yield farm.
š RiskāReturn Profile of Different GM Pools
Not all GM pools are equal. The riskāreturn depends on the asset's volatility and the typical trader bias. Here's a 2026 assessment:
- GM:BTC ā Lower volatility than ETH, often more balanced OI (traders long and short in similar size). Net delta exposure is usually ±5% of pool size. Result: consistent midārange APY (25ā35%) with moderate drawdown risk.
- GM:ETH ā Higher volatility, more directional trader bias (often net long in bull markets). Can produce higher APY (30ā45%) but with occasional sharp negative weeks if price rallies strongly. Risk level: mediumāhigh.
- GM:ARB / altcoin pools ā Lower liquidity, wider spreads, higher fees (daily 0.15ā0.25%). However, net OI can swing wildly (up to 30% of pool size) due to lower market depth. Returns are higher but so is delta risk; one sharp move can cause doubleādigit percentage losses in a month.
- GM:WAVAX (Avalanche) ā Similar to altcoin pools, but Avalanche's lower overall activity makes yields more variable. Good for those who already hold AVAX and want to earn extra yield, but not recommended for pure yieldāseeking.
š 12āMonth RiskāAdjusted Return Comparison (Apr 2025 ā Mar 2026)
| Pool | Avg APY | Worst monthly drawdown | Sharpe ratio (approx) |
|---|---|---|---|
| GM:BTC | 31% | -5.2% | 1.8 |
| GM:ETH | 39% | -12.1% | 1.4 |
| GM:ARB | 52% | -22.3% | 0.9 |
| GM:WAVAX | 47% | -18.5% | 1.0 |
| Holding ETH (spot) | 21% (price return) | -15% | 0.7 |
Note: Sharpe ratios above are illustrative; actual values vary. The key takeaway: GM:BTC offers the best riskāadjusted returns for conservative LPs. GM:ARB can be lucrative but only if you can stomach high volatility.
š Historical Yield Drivers (2025ā2026)
GM pool yields are heavily influenced by three factors: open interest (OI), trading volume, and pool size. When OI is high relative to pool size (e.g., OI/pool > 1.5x), fees surge because traders are paying more price impact. In 2025, during the postāhalving rally, OI on GM:BTC reached 2.2x pool size, pushing daily yields above 0.2% for weeks. In the 2026 sideways market, OI has normalised to 1.0ā1.5x, bringing yields down to 0.07ā0.1% daily.
To track realātime yields, use the official GMX analytics dashboard or DefiLlama's GMX v2 page. As of April 2026, the 30āday average APY for GM:BTC is 28%, GM:ETH 33%, GM:ARB 48%.
Understanding funding rates helps you predict trader bias, which directly affects GM pool delta exposure. Read our full guide.
š§āš» Should You Provide Liquidity or Simply Hold the Asset?
The decision depends on your view of the asset's price direction and your risk tolerance.
- If you are bullish on ETH and expect steady upward movement: Holding spot ETH will likely outperform GM:ETH because the pool's net short exposure will drag on returns in a rally. However, GM:ETH provides yield that partially offsets the drag, but still underperforms pure spot in a strong bull market.
- If you are neutral or rangeābound on ETH: GM:ETH is excellent. You collect high fees while delta exposure is minimal because net OI stays balanced. In a sideways market, GM pools often produce 30ā40% APY while spot returns near zero.
- If you are bearish: GM:ETH will perform well (the pool benefits from falling prices due to net long exposure). But if you are bearish, you could also short directly. GM pools are not a substitute for a short position.
- For stablecoin holders: GM pools are not suitable because you can only deposit the underlying asset. Instead, look at USDC lending on Aave or Morpho.
One popular retail strategy is to hedge the delta exposure by holding a short perpetual position on another exchange (e.g., short ETH perp on Binance or Hyperliquid) equal to the net OI of the GM pool. This creates a deltaāneutral position, capturing only the fee yield. However, this requires active monitoring and incurs funding costs.
For most retail investors, the simplest approach is to allocate a portion of their longāterm holdings (e.g., BTC or ETH) to GM pools as a yield enhancement, but not all of it. A 30/70 split (30% in GM pool, 70% spot) provides a balance of upside participation and yield.
Practical example: $50,000 portfolio
You hold $50k in BTC. You move $15k into GM:BTC and keep $35k in spot BTC. Over a year, if BTC price is flat, you earn ~$4,500 from the GM pool (30% APY) while spot does nothing. If BTC rallies 50%, your total return = $35k*50% + $15k*(50% ā estimated drag) + yield. The drag might reduce GM pool return to 40% instead of 50%, but you still benefit from most of the upside plus yield. This is a balanced approach.
For a deeper understanding of LP risks, read our guide on impermanent loss in DeFi ā while GM pools do not have traditional impermanent loss (they are singleāasset), the delta exposure concept is similar.
Also, compare GMX with other perpetual DEXs: Hyperliquid in 2026: OnāChain Perp Exchange offers a different model (HYPE token, order book) that might suit active traders better.