Research

USDS (Spark Savings)

Spark Savings · Arbitrum One · Vault

Obs · 23m ago

Total APY

3.8%

TVL

$364.1M

Observed risk

Moderate

Rate

Base: 3.8%
Incentive: n/a
Fee: n/a
Total: 3.8%

Liquidity

TVL: $364,058,226
7D change: +0.2%
30D change: +0.3%

Risk

Moderate observed risk·Low evidence confidence

Yield.ly did not verify an audit report covering this specific opportunity.
Strategy includes leverage or stacked structural complexity.

Risk methodology

Historical yield

Current: 3.8%
7D median: 3.6%
30D median: 3.6%
30D range: 3.52% to 3.6%
30D trend: +0.2%

Loading history

Loading 30-day APY history…

Where the yield comes from

The reported yield comes from automated vault strategy income. Composition varies by underlying LP fees, incentives, and compounding.

What can reduce the rate

Yield may fall as underlying rates, rewards, or strategy conditions change.

Risk detail

Yield.ly's risk assessment summarizes observable factors and data coverage. It is not an audit, credit rating, guarantee, or recommendation. Smart contracts, assets, protocols, custodians, and market conditions can fail in ways the model does not detect.

Watch

Yield.ly did not verify an audit report covering this specific opportunity.
Strategy includes leverage or stacked structural complexity.
Oracle design is unknown for an oracle-dependent product.
Strategy appears leveraged, recursive, or structurally complex.

Strengths

Substantial persistent liquidity on record.
Predominantly base yield rather than token incentives.
Thirty-day observation history available.

Unknowns

Contract deployment age is not verified.
Upgradeability is unknown.
Oracle provider is unknown for an oracle-dependent product.

Risk dimensions

Principal risks

Yield.ly did not verify an audit report covering this specific opportunity.
Strategy includes leverage or stacked structural complexity.
Oracle design is unknown for an oracle-dependent product.
Strategy appears leveraged, recursive, or structurally complex.

Exposure

Exposure type: Single asset
Assets: SUSDS

User deposits SUSDS. Funds enter Spark Savings on arbitrum. Exit via vault redemption.

Exit conditions

Exit terms are not fully reported.

Some product terms are currently incomplete.

Qualification notes

Meets Yield.ly's current requirements for default discovery where qualified. Learn how qualification works

Incentive-heavy yield
A large share of this rate comes from token incentives, which can change quickly and may depend on the reward token market value.
Risk flag
Oracle design is unknown for an oracle-dependent product.
Risk flag
Strategy appears leveraged, recursive, or structurally complex.

Data sources

Source observed: Oct 20, 2026, 8:02 AM UTC
Yield.ly refresh: Oct 20, 2026, 8:11 AM UTC
Data generated: Oct 20, 2026, 8:17 AM UTC

DefiLlama · total APY, base APY, TVL
CoinGecko · token icon

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Share opportunity

3.8000% · Spark Savings · Arbitrum One. Not investment advice.

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