Module 9 of 18 β€’ Earning Interest in DeFi
Module 3.3 β€’ Week 3

Earning Interest in DeFi

Learn how to generate yields in DeFi through lending, staking, and liquidity provision - with rates typically 5-20x traditional banks

πŸ“Š Yield data reflects early 2025 market conditions β€’ For live rates visit DeFiLlama Yields

🎯 What You'll Learn

🏦 Understand how DeFi lending protocols generate yield
πŸ“Š Master APR vs APY and compound interest calculations
πŸ” Find and compare current yields across protocols
⚠️ Assess risks: smart contract, liquidation, and impermanent loss
πŸ’‘ Learn emerging yield strategies including RWAs and liquid staking

How DeFi Yields Work

In traditional finance, banks pay you 0.5-2% on savings while charging borrowers 5-20% for loans, pocketing the difference. In DeFi, smart contracts eliminate the middleman - you earn most of what borrowers pay, resulting in yields typically ranging from 2-15% for stablecoins and potentially higher for volatile assets.

DeFi yields come from real economic activity: borrowers pay interest to access liquidity, traders pay fees to swap tokens, and blockchain validators share staking rewards. These yields fluctuate based on supply and demand - when borrowing demand is high, rates increase; when markets are quiet, rates compress.

Current DeFi Yield Landscape

Stablecoin Lending
2-14%
USDC, USDT on Aave, Compound
ETH Staking
3-5%
Native staking, liquid staking
LP Provision
5-25%
DEX liquidity pools
RWA Yields
5-8%
Tokenized treasuries, bonds

Rates vary significantly by protocol, chain, and market conditions - always check current rates before depositing

DeFi Yield Calculator

Initial Investment: $1,000
Interest Earned: $80
Total Value: $1,080

Major Lending Protocols

Aave V3 2-14%
Total Value Locked: $11B+
Best For: Stablecoin yields
Chains: 10+ networks
E-Mode Flash Loans Isolation Mode
Compound V3 2-8%
Total Value Locked: $2B+
Best For: Blue-chip assets
Chains: Ethereum, Base
COMP Rewards Battle-tested Single Borrowing
Morpho 3-15%
Total Value Locked: $3B+
Best For: Optimized rates
Chains: Ethereum, Base
P2P Matching Better Rates Aave/Compound+

Where to Find Current Yields

πŸ“Š Real-Time Yield Analytics

DeFiLlama Yields

Compare yields across 500+ protocols and chains

View Yields β†’

DeFi Rate

Lending and borrowing rate comparisons

Compare Rates β†’

Aave App

Live rates across all Aave markets

View Markets β†’

Beefy Finance

Auto-compounding vault yields

View Vaults β†’

APR vs APY Explained

APR (Annual Percentage Rate) is simple interest without compounding. If you earn 10% APR on $1,000, you'll have exactly $1,100 after one year, regardless of how often interest is paid.

APY (Annual Percentage Yield) includes the effect of compounding. Most DeFi protocols compound continuously (every block), meaning your interest earns interest. At 10% APY with continuous compounding, $1,000 becomes $1,105.17 after one year.

The difference becomes dramatic over time: $10,000 at 20% APY with daily compounding becomes $22,140 after 4 years, versus just $18,000 with simple 20% APR. Always check whether a protocol displays APR or APY, as the difference can be significant at higher rates.

Risk vs Reward Framework

🟒
Low Risk
Blue-chip lending
2-5% APY
🟑
Medium Risk
Established DEX LPs
5-15% APY
🟠
High Risk
New protocol farms
15-50% APY
πŸ”΄
Extreme Risk
Unaudited protocols
50%+ APY
⚠️ Critical Risk Factors in 2025
Smart Contract Risk: $2.3B+ lost to DeFi exploits in 2025 - only use audited protocols

Impermanent Loss: Providing liquidity to volatile pairs can result in losses even with high APY

Liquidation Risk: Using deposited assets as collateral for borrowing adds liquidation risk

Sustainability: Yields above 20% often come from token emissions that may not be sustainable

Regulatory Risk: Some yield products may face regulatory challenges in certain jurisdictions

Smart Yield Strategy for Beginners

1

Start with Stablecoin Lending

Begin with USDC or USDT on Aave or Compound for 2-8% APY with minimal volatility risk

2

Check Multiple Chains

Compare rates across Ethereum, Arbitrum, Optimism, and Base - L2s often have better rates

3

Diversify Across Protocols

Split funds between 2-3 established protocols to reduce single-point-of-failure risk

4

Monitor and Rebalance

Check rates weekly and move funds when significant opportunities arise (consider gas costs)

5

Graduate to Advanced Strategies

Once comfortable, explore liquid staking, LP provision, or leveraged yield farming

πŸ”‘ Key Takeaways

βœ“ DeFi yields typically range from 2-15% for established protocols, significantly higher than traditional finance
βœ“ Always verify current rates on DeFiLlama or protocol apps - yields change constantly with market conditions
βœ“ Higher yields mean higher risk - sustainable yields rarely exceed 20% APY
βœ“ Factor in gas costs, especially on Ethereum mainnet where fees can erode small position yields
βœ“ Start with battle-tested protocols like Aave and Compound before exploring newer opportunities

Knowledge Check

1. What's the typical yield range for stablecoin lending on major protocols?

0.1-1% APY
2-14% APY
20-30% APY
50%+ APY

2. Why are DeFi yields higher than bank savings rates?

DeFi protocols print money
No intermediaries taking profit margins
Government subsidies
It's unsustainable

3. Where should you check for current DeFi yields?

Social media influencers
Old blog posts
DeFiLlama or protocol apps
YouTube videos

Practical Exercises

Compare Live Rates

Visit DeFiLlama Yields and find: 1) Current highest stablecoin yield, 2) Average ETH staking APY, 3) Which chain has the most yield opportunities. How do these compare to the ranges in this module?

Calculate Compound Returns

Use the calculator above: If you invest $5,000 at 12% APY with continuous compounding for 3 years, what's your total return? How much more is this than simple 12% APR?

Risk Assessment Challenge

Find a protocol offering 30%+ APY. Research: Is it audited? How long has it existed? Where does the yield come from? Would you invest? Document your analysis.