PiggyBank's LAB Hedge Fails, Cutting USDC Vault NAV by 15%

PiggyBank, a Solana-based DeFi yield protocol, has revealed that a basis-trading position in the LAB token went badly wrong, shaving an estimated 15% off the net asset value of its USDC vault. The protocol disclosed the loss on June 6 after closing the hedge because funding costs had made maintaining it "economically irrational."

The USDC vault sits at $3.06 million in deposited assets, according to PiggyBank's own dashboard. The SPYx vault shows $823,000 and JitoSOL $639,000. PiggyBank's total value locked stands at $2.70 million, per DefiLlama.

The drawdown is notable because USDC vaults are marketed as lower-risk products. Users deposit stablecoins expecting the principal to stay largely intact while automated strategies generate yield.

The LAB Basis Trade

PiggyBank said it entered the position roughly a month before the June 6 disclosure, deploying $100,000, or about 2% of portfolio value at the time. The strategy involved buying locked LAB tokens at a discount through an over-the-counter desk, then shorting LAB perpetual futures contracts to hedge out the price risk.

Basis trading of this kind aims to pocket the spread between the discounted spot price and the futures price. It is generally considered lower-volatility than outright directional exposure. When it goes wrong, however, the losses can be amplified because the short and the spot position can move adversarially at the same time.

In PiggyBank's case, LAB experienced what the protocol described as "violent manipulation," thin liquidity, and deeply negative funding rates. Negative funding rates mean the cost of holding the short increases over time. The team said those conditions made the hedge unsustainable, so it closed the short position.

The NAV Accounting

PiggyBank now holds locked LAB tokens it values at roughly $1.35 million at current market prices. But those tokens cannot be sold yet, the first unlock is scheduled for August 14. Because the tokens are illiquid, PiggyBank removed them from its NAV calculation entirely.

That accounting decision is the direct cause of the drawdown figures: excluding $1.35 million in assets from the books while the associated liabilities and the deployed hedge remain on them produces the NAV hit. The estimated declines per the protocol's own disclosure are 15% for the USDC vault, 12% for SPYx, and 9% for JitoSOL.

ZachXBT's Criticism

On-chain investigator ZachXBT responded that PiggyBank had lost user assets by "gambling on blatant scam coins." His criticism followed a broader investigation he published in May 2026 in which he alleged that wallets linked to LAB insiders controlled more than 95% of circulating supply and coordinated a 350% price pump to a $6 billion fully diluted valuation before a sharp reversal.

Those allegations remain unverified claims by ZachXBT.

LAB is currently trading at below $13.00, per CoinGecko, down roughly 52% from its all-time high of $27.30 reached on June 2. The token has a market cap of $4.07 billion and a fully diluted valuation of $13.01 billion.

Risk Disclosure

PiggyBank's documentation describes its vaults as deploying "delta-neutral" funding-rate strategies across perpetual DEXs, and says automatic margin rebalancing and deleveraging are in place. What those thresholds are, and whether they apply to mid-cap basis trades like the LAB position, the protocol has not publicly detailed.

PiggyBank said it will publish a full post-mortem with its next steps. That report has not yet appeared. Key open questions: whether depositors can withdraw at the revised NAV, whether any compensation is planned, and how the protocol accounts for the locked LAB position if prices shift before the August 14 unlock.

The episode adds to a pattern of strategy failures inside DeFi yield vaults. Protocols that run complex derivatives positions on top of depositor funds can expose users to execution risk and illiquidity risk that standard risk disclosures do not always capture clearly.