Recovery Summary: Underbacking Fully Resolved

Metronome has fully closed the underbacking disclosed on July 30 and built a surplus of 281,774 msUSD and 262 msETH on top of it. With backing restored, msUSD and msETH are expected to return to 1 USDC and 1 ETH. The next step is introducing a generalized burn function, which will allow the treasury to properly burn excess synths that have accumulated.

The gap was 6,367 msETH and 4.57M msUSD, about $16 million at disclosure and past $20 million by August as ETH price increased. Closing it took under seven weeks, funded by protective loops built ahead of disclosure, the PNL they produced, and an $8 million USDC loan taken against treasury owned wstETH, all of which funded sufficient buybacks of synth assets at an average discount of roughly 50 percent to eliminate the underbacking completely.

When DeFi protocols have faced shortfalls of this size, they have usually diluted the governance token, recapitalized with outside investors, or passed the loss to holders. These incidents may end in shutdown. Metronome required none of these measures. The team declined half a dozen offers from liquid funds and crypto-native institutions to refinance or buy out the debt. 

Over $30 million of treasury-owned, yield-bearing collateral is still in place, and the system still earns about $3 million in revenue a year. The loops that remain are now standing treasury policy. Treasury value is roughly the same from pre-disclosure levels.

Background

On July 30, 2026, Metronome disclosed a security incident that left 6,367 msETH and 4.57M msUSD of unbacked assets in circulation. Operations set out immediately to buy back and remove the unbacked assets from circulation. At the time of disclosure, this reflected a roughly $16 million underbacking; rising ETH prices pushed the total burden past $20 million by August.

Root Cause: Chainlink Oracle Latency

Unbacked circulation is attributed to MEV bot arbitrage taking advantage of stale Chainlink oracle pricing. Over the past year, the long tail of Chainlink's performance has deteriorated significantly. The slowest one in ten ETHUSD oracle updates on Base now sits stale for five minutes, up from a baseline of under 1.5 minutes in 2025. The oracle is out-of-bounds for 18.5% of all minutes, and its median time of staleness runs nearly 8x longer than Pyth's comparable product. Independent studies have corroborated this degradation and its impact on the ecosystem. (1) (2)

Last year, Chainlink introduced SVR, an added "auction" step in the oracle update process. Instead of liquidation bots competing on gas fees for priority on Aave and Morpho, or, on Base, where there's no mempool, spamming blockspace in anticipation of the oracle update (an activity that accounts for over 50% of Base's lifetime transactions), bots can now bid directly with Chainlink to bundle liquidations into the oracle price update itself.

A slower oracle allows for a larger permissible price deviation, which produces a bigger batch of liquidations, which generates greater SVR revenue for Chainlink and the lending markets it supports. This is a $30 million ARR business that triggers hardest on downward market moves, batching liquidations together rather than laddering them over several minutes. 

Defensive Response

As outlined in the original disclosure, the time spent negotiating with and sharing findings with Chainlink also served as a window to build "protective loops" and establish additional defensive measures. By the time of disclosure, the notional value of the looped collateral was ~$35 million.

Some observers suggested that creating these positions caused the depeg. This notion is rejected entirely. Loops generate healthy debt positions and backed circulation. LP positions protect the ability for market participants to enter and exit synths freely. With no unbacked assets in circulation, this same activity would not have catalyzed a depeg.

What these positions accomplished were two significant improvements:

• Enabled the treasury to realize PNL to contribute toward recapitalizing synth assets

• Shifted potential PNL away from outside market participants, who have no obligation to return capital, toward backing recovery, in the event they benefited from the depeg

With these positions in place, as the initial announcement described, closing 100% of the positions at an average 0.7 peg, combined with using the resulting PNL to buy back synthetic assets at an average price of 0.7, would eliminate the underbacking completely.

In practice, the situation was more complicated, and the team reached the same conclusions many users did.

First, it quickly became clear that the Metronome treasury would end up as the last remaining debt holder of synth positions. Most external borrowers repaid their positions quickly, and the defensive loops themselves soon accounted for nearly all outstanding debt. That meant the circulating supply of synth assets was converging on treasury debt plus unbacked circulation, which meant treasury positions closed at 0.7 would need to buy back 100% of the circulating supply, an unreasonable target outside a timeframe of several years. Many holders expressed confidence in Metronome's ability to resolve the underbacking and stayed comfortable holding their positions.

Second, this target assumed all other variables stayed constant. The rapid appreciation of ETH's price increased the dollar value of the underbacking. The team has referred to this internally as a "skew," though it's more accurately described as there being too much msETH, and msUSD, in circulation. Technically, the system was short msETH and msUSD, but the expected price of USD is predictable in a way ETH's price is not.

In practice, the dollar-denominated debt increased by over $4 million within a few days. Although the treasury positions were partially denominated in ETH, this exposure wasn't fully mitigated, which forced the treasury to pause its OTC offer to buy back synths at 0.7.

The market reacted sharply, with synth assets trading as low as $0.45 during the first week of September. Treasury operations responded aggressively, combining buy-side LP orders on Aerodrome with open market purchases to recapture eight figures worth of synth assets at an average discount of roughly 50%. The large majority of buybacks happened in this range, which meaningfully accelerated the recovery process.

Following disclosure, automated liquidity providers continued to borrow and LP concentrated-range synth asset positions, as they still do today. This was the primary benefit of continued incentives targeting the CL msUSD and msETH pools on Aerodrome. Some observers characterized this activity as careless or wasteful, but the concentrated depth it created contributed significantly to efficient open market buybacks that otherwise wouldn't have been possible. Incentive spend on Velodrome dropped substantially, and Curve incentives were concentrated in pools dominated by Metronome Treasury Protocol Owned Liquidity.

The execution of many of these activities were obfuscated to the extent possible. Treasury actions were frontrun immediately and throughout the entire recovery process. Some level of obfuscation enabled better market execution, accelerating recovery efforts.

As outlined above, "close all the loops to repay the debt" was never a plan with a clear path to execution. Immediately following the disclosure, management flew to meet with our Bloq business partners in person to draft a corporate debt memo. The memo was well received and generated significant interest. Any new capital raised this way could be used to buy back debt at a discount: one dollar used for buybacks at 70c closed out $1.42 of debt; at 50c, $2; at the best purchases, at 45c, one dollar paid off $2.22 of debt.

Ultimately, half a dozen offers from liquid funds and crypto-native institutions were received and rejected. Instead, a portion of active loops was rebalanced into Vesper vastETH collateral, which deposits wstETH into Cap as collateral and enables USDC borrows against treasury wstETH. Cap offers indefinite-term loans at favorable rates, currently about 5.7% APR. Compared to the staking yield generated by the collateral, the ongoing interest cost is negligible: roughly $16 million of wstETH collateralizes $8 million USDC, and net of staking yield, the net interest is roughly $150,000 per year.

Other financing opportunities, including OTC purchases of MET, were offered to the protocol, considered, and rejected. The path taken reflects the most favorable terms available to every ecosystem participant: synth holders, liquidity providers, and MET token holders alike.

A majority of that $8 million USDC has been used for buybacks, with a portion also contributing to the defensive looped positions. Some of the protective loops have been reduced, with the resulting PNL used toward recovery as described above. A majority remains in place, however: over $30 million of treasury-owned, yield-bearing collateral (and roughly $4 million in equity, assuming synth debt is valued at a 1.00 peg) remains actively earning for the protocol and ready to be reduced further as needed. Other treasury positions, including POL and MetBasis, continue to yield as well.

The treasury's equity, largely represented in these loops, is mostly unspent. There is currently about $4 million in "loop equity" at par, meaning total collateral minus total debt, with synth assets valued at the underlying amount. Any continued discount increases that equity further. This, along with miscellaneous positions (such as AERO lockups) and the ~$916k surplus buffer (at par), roughly matches the pre-disclosure, unencumbered treasury equity (meaning equity unrelated to synth assets or MET).

Treasury dashboard: unencumbered treasury equity on 7/29 was approximately $5.3 million including msETH/msUSD LP, and approximately $4 million excluding it.

As of now, Metronome still generates roughly $3 million in ARR between looped collateral APY, POL, and MetBasis LP. Even assuming zero additional activity, the system is healthy, profitable, and comfortably able to service its loan indefinitely and repay it when necessary.

The Metronome model is now the strongest it has ever been. The measures taken to preserve equity and restore peg can now be redirected toward optimizing capital efficiency and driving growth. Protective loops become forward-facing treasury policy: buy back and repay when peg trades at a discount, increase exposure when peg trades at a premium, and earn APR on the productive collateral throughout.

MetBasis, which creates a capital-efficient sink to activate synthetic assets without recirculating them, now serves as a driver to continuously build a backing surplus. As of today, msUSD and msETH backing exceeds circulating supplybacking exceeds circulating supply: their real market backing actually sits above peg for each.

The swap remains closed indefinitely. The team plans to eventually run a technical feasibility test to determine whether healthy swap activity (peg balancing, ETH swap depth in extreme market conditions) can be separated from unhealthy behavior (toxic float, skew creation). There's no timeline for this work, and it isn't prioritized or scheduled at this time. In the meantime, MetBasis drives volume, generating revenue for POL positions and driving swap volume for the msETH and msUSD LPs.

Several upgrades will also be introduced for synth assets in the next week:

• A generalized burn function, allowing the treasury to properly burn excess synths that have accumulated

• A cross-chain bridge fee, applying a small fee on cross-chain movement of synth assets

• A Metronome synth origination fee, charging automated "phantom" LP behavior, where bots continually add and remove synth asset liquidity on Aerodrome to farm AERO during idle periods

• A full breakdown of the recovery, including total volume spent and treasury and position trends over time, will be published in a separate, dedicated report that will also expand on the Metronome business model.

• The treasury retains ample ability to regulate the peg using the levers described above, and will continue to do so actively. Who will repeg the synths now that backing is restored? Metronome itself.

• The team is committed to publishing and maintaining an itemized backing and transparency dashboard, and will take community feedback on its presentation. This will initially continue via the existing Dune dashboard but may take another form.

• There has been some speculation about internal actions leading up to and during this incident. Everything is onchain. Only the most senior leadership was aware of the underbacking prior to the disclosure, and only to the degree required to communicate with Chainlink and prevent further underbacking. A "no trading" rule was put in place and has been observed across the entire team.

• The following wallet has been used for recovery efforts, with proceeds from loops created just before disclosure used to recover and burn msETH and msUSD: 0x3132D5BAe89D248DEdA77ABA04A43255EF188264

• No special deals or buy outs were offered to any party. No individual, partner, or team member received advance notice of this incident or the recovery operations.

• There are no plans to wind down Metronome operations or the MET token. The team will continue to steward the maintenance and growth of Metronome and its community.

The raw data associated with the original investigation and data report can be found here.