Curve Finance, the dominant automated market maker (AMM) for stablecoins and correlated asset pairs, published its Week 38 yield summary on September 17, 2026, revealing a mixed picture: stablecoin pool returns climbed into double digits while overall trading volume fell and one featured asset continues to trade well below its intended peg.

The protocol holds roughly $1.39 to $1.54 billion in total value locked across 31 blockchain networks, with Ethereum accounting for approximately 95% of that figure, according to data from DefiLlama.

Top Pools This Week

The highest-yielding USD pool this week pairs reUSD against sUSG, returning 15.1% APR. Both assets are real-world asset (RWA) instruments: reUSD is issued by Re Protocol and provides holders a blended yield built on the SOFR rate (a benchmark for US dollar lending), the trailing rate from a yield-bearing synthetic dollar called sUSDe, and a fixed 250 basis point spread. sUSG is a tokenised US government securities product. According to Re Protocol's documentation, "reUSD holders earn a blended yield consisting of off-protocol returns from the SOFR rate and on-chain returns from the trailing sUSDe rate, plus a fixed spread of 250 basis points." The pool's elevated return reflects the layering of two distinct RWA yield sources within a single liquidity position.

Second place goes to the frxUSD/sUSDai pool at 13.5% APR. frxUSD is Frax Finance's fiat-redeemable stablecoin, backed by approved custodians holding cash-equivalent reserves, including exposure to BlackRock's BUIDL fund. Its pairing with sUSDai, a synthetic dollar backed by AI infrastructure credit, creates an unusual combination of traditional finance collateral and emerging Web3 credit products. A third USD pool pairs reUSD (Resupply) with sDOLA, returning 9.9% APR. Resupply is a Curve-adjacent lending protocol, and its reUSD wrapper is a distinct instrument from the Re Protocol reUSD featured in the top-ranked pool.

crvUSD and Llamalend Data

Curve's native stablecoin, crvUSD, is borrowed through Llamalend, the protocol's isolated lending market system. The average borrow cost rose to 3.6% APY this week, up one percentage point from the prior week.

That increase follows a period of compressed rates that accompanied the Llamalend V2 launch in late July 2026. The savings yield on scrvUSD, the deposit wrapper for crvUSD, climbed to 3.3%, up 1.2 percentage points week over week. Outstanding mint-market debt stood at $73.3 million as of Thursday, down 3.3% week-over-week; a subsequent update placed the figure at $77.8 million. Llamalend's total TVL came in at $252 million, down 2.6% from the prior week. Weekly borrowing fees collected reached $43,500, a 42.9% increase compared to the previous week. For CRV token holders who lock their tokens as veCRV, weekly protocol distributions totalled $91,300, up 1.7% on the week. CRV itself is trading at approximately $0.35.

Metronome's msUSD and msETH Still Off Peg

Curve's report flags an ongoing situation with Metronome, a synthetic asset protocol. In late July 2026, MetronomeDAO disclosed a roughly $16 million undercollateralisation event traced to latency in Chainlink price feeds on the Base network. The oracle feed drifted outside its 0.15% deviation band 18.5% of the time since launch, and median data staleness ran to about 54 seconds, long enough for MEV bots to execute directional arbitrage against the swap module.

MetronomeDAO's post-mortem described the root cause as "the latency of the Chainlink price at swap execution, a variable which Metronome's fee design did not properly account for."

The protocol has since taken remediation steps and states that "the backing shortfall is closed and its internal swap remains closed."

However, on-chain prices tell a different story. As of this week's report, msUSD is exchanging for approximately 0.920 frxUSD and msETH is trading at around 0.896 WETH. Both figures represent meaningful discounts to their intended 1:1 peg. Users holding either asset in Curve pools should treat the current discount as an active risk, not a resolved one.

Curve on Circle Arc: Early Presence, No Active Pools Yet

Circle launched its Arc network on September 16, one day before this report. Arc is a permissioned Layer-1 blockchain that uses USDC as its native gas token, with sub-second transaction finality and a validator set that includes BlackRock, DTCC, Visa, Mastercard, Standard Chartered, Galaxy, MoneyGram, SBI Group, Sumitomo, ICE, and Worldpay.

Gas costs are minimal, estimated at around $0.00042 USDC for a basic transfer. Curve has deployed its pool and gauge factories on Arc, but no active liquidity pools had been seeded at reporting time.

Regional Context: Africa and South Asia

For users in Sub-Saharan Africa and South Asia, this week's figures carry practical weight. Nigeria channels over $30 billion in value through DeFi services and accounts for 40% of stablecoin inflows across the continent, according to Transak's 2026 Africa Fintech Report. Stablecoins represent 43% of all crypto transactions across Sub-Saharan Africa, and the region holds a 9.3% stablecoin adoption rate, the highest of any region globally. Stablecoin yields of 10% to 15% APR compare favorably to local savings instruments for users managing naira depreciation or currency volatility in Ethiopia and Kenya. Kenya abolished its 3% digital asset tax in July 2025, reducing one layer of friction, and ranks fifth globally in transactional stablecoin use, with a mobile money base of 34 million M-Pesa users. Ethiopia recorded 180% year-over-year growth in retail stablecoin transfers.

South Asia recorded 80% year-over-year growth in crypto adoption in 2025, driven in part by large diaspora remittance economies with strong incentives to hold dollar-denominated yield instruments. India's 30% flat tax on crypto gains remains a structural constraint, but longer-hold strategies using scrvUSD or stable LP positions fit the pattern many users have adopted to manage tax events.

One note of caution applies across both regions: accessing Curve pools still requires bridging assets to Ethereum or a supported network, managing gas costs, and navigating smart-contract risk. The Metronome situation is a timely reminder that off-chain declarations of resolved problems do not always match what on-chain prices reflect.

What to Watch

The outcome of governance vote 1496 will be worth tracking in the coming days. The vote proposes raising the fee on the TricryptoUSDC pool from 0.10% to 0.36%.

Arc's early deployment signals institutional interest in Curve's infrastructure, but real usage depends on whether the financial institutions in Arc's validator set move client activity onto the network.

Standard Chartered's presence is particularly relevant given its footprint across Sub-Saharan Africa and South Asia, two of the most active DeFi regions globally. SBI Group's validator role on Arc is equally notable for users across South and Southeast Asia, given the institution's deep regional presence in those markets.

All on-chain figures are point-in-time as of September 17, 2026. Pool APRs are estimates that fluctuate with trading volume, gauge weights, and incentive emissions. This article is not financial advice.