A high APY is a marketing hook, not a bank statement. In DeFi, the number you see on the dashboard is the theoretical maximum, but the number that hits your wallet is almost always lower.
Riyankun2 min read·Just now--
Where Your APY Disappears
The gap between “displayed” and “delivered” returns is eaten by three main factors:
- The Gas Tax: Small deposits get crushed by entry, exit, and compounding fees. If you pay $50 in gas on a $1,000 deposit, you’re down 5% before you even start.
- Impermanent Loss (IL): In liquidity pools, if one asset pumps while the other stays flat, the pool rebalances by selling the winner. You often end up with less value than if you had just held the tokens in your wallet.
- Vaporware Incentives: Many “100% APY” pools pay out in governance tokens. If that token drops 50% in value while you’re holding it, your “high yield” was just a slow-motion exit for the protocol.
Gross vs. Net: The Only Math That Matters
Protocols show Gross APY because it attracts capital. It assumes perfect conditions: zero gas, no price volatility, and perfect compounding.
Serious participants focus on Net Return, which accounts for:
- Slippage & Fees: The cost of moving in and out.
- Price Divergence: The impact of market volatility on your principal.
- Inflation: The real-world value of the rewards tokens.
How to Stop Being “The Yield”
You can either spend your life in spreadsheets modeling every transaction, or you can use infrastructure built to handle the math.
Concrete vaults change the game by moving from “yield chasing” to Yield Engineering:
- Batching: Spreading gas costs across the entire pool so they don’t eat your individual profit.
- Active Rebalancing: Automatically moving capital when a strategy’s net return drops.
- Risk Modeling: Only entering positions where the math actually checks out after costs.
Stop chasing headlines. Start engineering outcomes at app.concrete.xyz.
