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Aave USDC midnight rate manipulation - a $191M wallet triples the displayed supply APR at 00:00 UTC and pigi.finance's time-weighted APR fix

Engineering· Jul 30, 2026· 8 min read

The Midnight Whale: Why Aave's USDC Rate Triples at 00:00 UTC Every Night

Our Aave USDC vault showed 11% while Aave showed 3%. Both were true. On-chain forensics found a wallet pulling ~$191M out of the pool minutes before midnight and returning it after — then the money trail showed why, and it wasn't what we assumed.

DeFi Yield Market Outlook July 2026 - Before and After: Exploit Casualties, Mid-Cap Contraction, and the Flight to Quality Across 35 Strategies

Market OutlookJul 27, 2026· 7 min read

DeFi Yield Market Outlook: What Four Months Did to 35 Strategies

Before and after, four months apart: 6 of 35 strategies stopped being viable (two exploits, ~$31M), mid-cap synthetic dollars contracted 50-75%, blue chips ended flat — and Maple grew 81%.

Vault InfrastructureJul 20, 2026· 10 min read

The Next Generation of Tokenized Vault Standards. Part 2

A vault is not a fund. The second wave of ERCs standardizes the fund itself — series performance fees (8113), bounded manager mandates (8192), managed baskets (7621), fund metadata & NAV (8318 / uFund), tokenized reserves (7425), and generalized yield wrappers (5115).

The Next Generation of Tokenized Vault Standards - ERC-4626, ERC-7540 Async Vaults, ERC-7575 Multi-Asset Entry Points, and Related DeFi Vault ERCs

Vault InfrastructureJul 20, 2026· 9 min read

The Next Generation of Tokenized Vault Standards. Part 1

ERC-4626 standardized the simple vault. A new generation of ERCs — 7540 async requests, 7575 multi-asset entry points, 7887 cancellation, 8161 transferable requests, 6229 lock-in rounds, 5143 slippage, 7535/7528 native ETH — is standardizing everything around it.

What Are T-Bills - US Treasury Bills, the Risk-Free Rate, Auctions, Discount Yield, and Their Use Across Traditional Finance

TradFi FundamentalsJun 1, 2026· 7 min read

What Are T-Bills, and How TradFi Uses Them

The US Treasury Bill is finance's risk-free rate. What a T-Bill is, how it's auctioned and priced, the two ways its yield is quoted, and the jobs it does across TradFi — plus why it's the honest benchmark for any DeFi yield.

DeFi FundamentalsMay 21, 2026· 6 min read

Where to Get Even Higher Yields?

Beyond APR, crypto projects reward users with points, airdrops and bonus campaigns. Why pigi.finance leaves that incentive layer out of its yield numbers — and where to find it.

Product UpdateMay 20, 2026· 7 min read

DeFi Base Rate Update: Adding Liquity V2

We've updated the pigi.finance DeFi base rate. After April 2026's $304.7M in exploits, the stablecoin benchmark now averages four venues — the three Aave pools plus Liquity V2's BOLD Stability Pool — cutting single-protocol concentration.

DeFi FundamentalsMay 2, 2026· 6 min read

Aave: 0% APR, but $4B in TVL?

A follow-up to article #7. How can an Aave pool show near-zero deposit APR and still hold $4B in TVL? Most depositors are not chasing yield — they are buying borrowing power. Wrapped eETH explained (as of 02.05.26).

DeFi FundamentalsMay 1, 2026· 7 min read

Aave TVL: Two Ways to Measure

Aave's USDC reserve has $1.93B supplied, $1.78B borrowed, and $153M available (as of 01.04.26). Why pigi.finance and DeFiLlama report different TVL numbers — and what each actually answers.

DeFi Insecurity vs TradFi Banking Failures - Comparing Protocol Exploits to FDIC Bank Failure Data

DeFi FundamentalsApr 1, 2026· 6 min read

The Cost of Open Finance: DeFi Insecurity vs TradFi Banking Failures

How insecure is DeFi really? We quantify protocol exploits as a share of TVL and compare them against FDIC bank-failure data from 2001 to 2025 — including the 2008 outlier.

EngineeringMar 29, 2026· 8 min read

AI Won't Build a DeFi Indexer for You

AI gave us a clean implementation in seconds. Five weeks later we were still implementing it. A postmortem on memory limits, rebasing tokens, Uniswap V3 NFTs, Aave aTokens, and RPC rate-limit warfare.

DeFi FundamentalsSep 1, 2024· 5 min read

What is a Vault in crypto?

On pigi.finance, "vault" covers ERC-4626 contracts, AMM liquidity pools, stability pools, and more. Learn how we define the term and why it matters for comparing DeFi yield opportunities.

CAGR APR APY Difference - DeFi Yield Metrics Explained

DeFi FundamentalsAug 1, 2024· 6 min read

What is the difference between CAGR, APR and APY?

Three numbers, three different questions. Learn what APR, APY, and CAGR each measure, when to use them, and how to compare DeFi yields without mixing apples and oranges.

DeFi Derivatives Yield Strategies - Perpetual Futures, Options Trading, Interest Rate Swaps, and Volatility Premiums

DeFi FundamentalsJul 1, 2024· 7 min read

Derivatives Yield in DeFi: Turning Financial Instruments into Income

Explore how derivatives like futures, options, and swaps are being reimagined as yield sources in DeFi, from funding rates to option premiums.

DeFi Yield Sources Guide - Lending Protocols, Liquidity Mining, Staking Rewards, and Yield Farming Strategies

DeFi FundamentalsJun 1, 2024· 5 min read

Understanding DeFi Yield Sources

Interactive guide with sidebar navigation. Explore DeFi yield sources with easy chapter navigation and smooth scrolling.