Decoding Funding Rate Arbitrage: How to Achieve Stable Annual Returns Through Spot and Perpetual Hedging?
TechFlow Selected TechFlow Selected
Decoding Funding Rate Arbitrage: How to Achieve Stable Annual Returns Through Spot and Perpetual Hedging?
As a trader, you need to understand the timing cycle of funding fee payments/receipts and how funding rates fluctuate over time.
Navigating Web3 tides with focused insightsAuthor: The Black Swan
Translation: TechFlow
In the crypto perpetual contract market, price deviations frequently occur, and traders can profit from these pricing inefficiencies.
"Cash and Carry Trade" is a classic strategy that allows traders to earn returns by exploiting the difference between perpetual contract prices and spot prices.
Funding Rate Arbitrage – Earn 25%-50% Passive Income Annually Using Cash and Carry Strategy?
In the crypto perpetuals market, price discrepancies are common—and traders can capitalize on these mispricings. The "Cash and Carry Trade" is a well-known strategy specifically designed to exploit differences between perpetual futures and spot prices, enabling traders to generate profits with relative ease.
This strategy allows traders to perform arbitrage across centralized exchanges (CEX) and decentralized exchanges (DEX), often without incurring high fees. Specifically, you establish a long position in the underlying asset while simultaneously shorting its corresponding perpetual derivative. When the broader market sentiment leans bullish (i.e., premiums are high), you earn additional income through funding rates. If this sounds complex, don’t worry—I’ll explain it using ELI5 (Explain Like I’m 5).
What Is Funding Rate?
Funding rate is a periodic fee paid or received by traders based on the difference between the price of a perpetual contract and the underlying spot market. The size of this rate depends on the skew of the perpetual market and how much the perpetual price deviates from the spot price.
In simple terms, when the perpetual swap trades above the spot price (a premium), platforms like Binance, Bybit, dYdX, or Hyperliquid show positive skew, and long positions pay funding to short positions. Conversely, when the perpetual trades below spot (a discount), skew turns negative, and shorts pay funding to longs.
Essentially, we're mimicking what Ethena Labs does: going long on ETH spot while shorting ETH perpetuals—but doing it ourselves and choosing whichever assets interest us (hint: not necessarily ETH).
If you’d rather skip ahead, let me break it down simply:
Take Ethereum as an example—we want to be long ETH (ideally staked ETH).
We could hold stETH (yielding ~3.6% APY) and simultaneously short $ETH perpetuals (e.g., on Binance or Bybit).
When we take equal-sized long and short positions on ETH, our portfolio becomes “Delta neutral.” This means we won’t gain or lose money regardless of ETH’s price movement.
A Delta-neutral strategy balances long and short exposure to eliminate directional market risk. For instance, if I open a 1 ETH long and a 1 ETH short at the same price, my total portfolio value remains unchanged no matter how the market moves (ignoring fees).
In this setup, our profit comes from two sources: staking yield and funding rate income.
The funding rate mechanism helps align perpetual contract prices with the spot market, similar to interest costs in margin trading. It adjusts capital flows between longs and shorts to prevent sustained divergence.
Here’s how funding works:
-
Funding is a direct transfer between buyers and sellers, settled at regular intervals. On most platforms with 8-hour cycles, payments occur at UTC 00:00, 08:00, and 16:00.
-
On DEXs like dYdX and Hyperliquid, funding settles hourly; on Binance and Bybit, every 8 hours.
-
When funding is positive, longs pay shorts; when negative, shorts pay longs (common during bearish periods—more on this later).
-
Only traders holding positions at settlement time receive or pay funding. Closing before settlement avoids any payment.
-
If a trader lacks sufficient balance to cover funding, the system deducts from position margin, moving the liquidation price closer to mark price and increasing liquidation risk.
Let’s analyze the funding rates shown in the image. While different chain-based perpetual exchanges may use slightly varying calculation methods, as a trader, you need to understand the funding cycle and how rates fluctuate over time. Here's how to calculate APR from the displayed funding rates:
For Hyperliquid:
0.0540% × 3 = 0.162% (daily APR)
0.162% × 365 = 59.3% (annual APR)
Binance shows lower funding, resulting in a 31.2% APR (calculated the same way). There’s even an arbitrage opportunity between Hyperliquid and Binance: go long ETH perpetual on Binance and short ETH perpetual on Hyperliquid, capturing the 59.3% - 31.2% = 28.1% annualized spread. However, this approach carries risks:
-
Funding volatility might cause Binance’s long-side funding to exceed Hyperliquid’s short-side income, leading to losses.
-
Since the long leg isn't spot, you miss out on staking rewards, reducing overall yield.
Still, one advantage is leverage: using perpetuals for both legs increases capital efficiency. Consider building an Excel model comparing different strategies’ risk-return profiles to find your optimal fit.
When funding is positive (as in our example), longs pay shorts—this is crucial because it forms the foundation for designing delta-neutral strategies that profit from funding inflows.
Cash and Carry Trade
A simple and widely used strategy is the "Cash and Carry Trade": buying spot assets while shorting an equivalent amount in perpetual contracts. Using ETH as an example:
-
Buy 10 ETH/stETH spot ($37,000)
-
Sell 10 ETH perpetual contracts ($37,000, executable on dYdX, Hyperliquid, Binance, or Bybit)
At the time of writing, ETH trades around $3,700. To execute this effectively, traders should aim to buy and sell nearly simultaneously at matching sizes to avoid “unbalanced risk”—where market movements leave one side unhedged.
The goal? Generate approximately 59% annualized returns via funding, regardless of whether the market rises or falls. While this return seems attractive, keep in mind that funding varies across exchanges and assets, directly impacting final yields.
Your daily funding income can be calculated as:
Funding Income = Position Value × Funding Rate
Using the current ETH funding rate of 0.0540%, here’s the daily breakdown:
-
Daily Funding Income: 10 ETH × $3,700 = $37,000 × 0.0540% = $20 per settlement × 3 settlements = $60/day.
-
Daily Staking Yield: 10 ETH × 3.6% = 0.36 ETH/year → ~0.001 ETH/day → $3.7/day.
Total daily return: $60 + $3.7 = $63.7. Whether this is meaningful depends on your perspective.
However, several risks and challenges exist:
Difficulty Entering Both Legs Simultaneously: Check ETH spot vs. perpetual prices on Binance or Bybit—you'll usually see a spread.
For example, while writing this, spot was $3,852 and perpetual $3,861—a $9 gap.
-
How do you proceed? Try with small amounts—you’ll quickly realize perfect hedging is nearly impossible.
-
Should you go long first and wait for price to rise before shorting? Or short first and wait for spot to drop before buying? Alternatively, use DCA (Dollar-Cost Averaging) to gradually balance your exposure?
Trading Fees: Opening and closing positions incur fees. Holding less than 24 hours could turn profits into losses due to fee drag.
Rebalancing Risk with Low Capital: Even with balanced notional exposure, large price swings (e.g., ETH doubling to $7,600) create imbalance—your short suffers deep unrealized loss while your long gains significantly, potentially forcing rebalancing or partial liquidation.
Liquidation Risk: Depending on your available margin, extreme moves (like a sudden ETH rally) could trigger liquidation of your short leg.
Funding Rate Volatility: Funding rates change constantly—what looks profitable today might not tomorrow.
Difficulty Exiting Both Positions Simultaneously: Similar to entry, exiting both legs cleanly is challenging and may result in slippage or residual exposure.
Centralized Exchange Risk: If Binance or Bybit face insolvency or withdrawal freezes, your funds could be at risk—similar in impact to smart contract vulnerabilities in DeFi.
Operational Risk: If you’re new to perpetuals, proceed carefully. Mistakes in order types or execution can lead to adverse fills. With just one click to open or close, a simple error can ruin your trade outcome.
By the way, consider exploring options trading—it might be simpler and save you some costs :)
I just wanted to show you how to replicate Ethena Labs’ strategy.
That’s all for today.
See you on the order book, anonymous friend.
Join TechFlow official community to stay tuned
Telegram:https://t.me/TechFlowDaily
X (Twitter):https://x.com/TechFlowPost
X (Twitter) EN:https://x.com/BlockFlow_News
@Route2FI
