Is Spark Savings Safe?

|Yield
B

Risk Grade: B (22/100)

Spark Savings is rated as moderate risk — some novel mechanisms, generally well-understood.

Lower risk — simple yield-bearing wrapper backed by DeFi's most battle-tested stablecoin protocol, but yield is governance-dependent and subject to significant rate changes

Spark Savings lets you earn yield on DAI and USDS stablecoins by depositing them into the Sky (formerly Maker) Savings Rate module. You receive sDAI or sUSDS tokens that automatically appreciate in value as yield accrues, currently at 3.5-4.5% APY. With $1.2B in deposits and the battle-tested MakerDAO/Sky infrastructure behind it, Spark Savings earns a B+ risk grade. The main risks are governance-controlled rate changes that can swing dramatically, and the fact that your yield ultimately depends on Sky Protocol's complex lending and RWA operations.

TVL

$1.4B

Mechanisms

5

Interactions

4

Value Grade

C-

Key Risks for Spark Savings Users

1.

Your yield rate is controlled by Sky Protocol governance and can change significantly. The rate was cut from 6.5% to 4.5% in March 2025. Rates could be cut to near-zero in a crisis, though your principal remains safe.

2.

While the sDAI wrapper is simple, your yield comes from Sky Protocol's complex operations: lending, real-world assets, and the Peg Stability Module. A failure in these underlying operations could ultimately impact the savings rate.

3.

sDAI is widely used as DeFi collateral, creating leveraged yield strategies. If rates are suddenly cut, leveraged positions unwind, which could cause temporary market disruption.

Top Risk Factors

  • Spark Savings (sDAI/sUSDS) depends entirely on the Sky (formerly Maker) DSR/SSR rate, which is governance-controlled. Rate changes (e.g., the March 2025 cut from 6.5% to 4.5%) cause rapid TVL swings as yield-seekers migrate, creating reflexive inflow/outflow dynamics.
  • sDAI and sUSDS are ERC-4626 wrappers around DAI/USDS in the Savings Rate module. While the wrapper contract is simple, the underlying yield comes from Sky Protocol's complex lending, RWA, and PSM operations — a failure in Sky's backing directly impacts Spark Savings depositors.
  • At $1.2B TVL, Spark Savings represents a significant concentration of Sky Protocol's total DAI/USDS supply in the savings module. A sudden mass withdrawal could strain DSR module liquidity and force Sky governance to emergency-adjust rates.

Risk Score Breakdown

Spark Savings's highest risk area is Scale Exposure (7/10). Here's how each dimension contributes to the overall 22/100 score:

Mechanism Novelty2/15
Interaction Severity4/20
Oracle Surface1/10
Documentation Gaps1/10
Track Record1/15
Scale Exposure7/10
Regulatory Risk3/10
Vitality Risk3/10

Read the Full Spark Savings Risk Report

This protocol has 2 collapse scenarios. See the full mechanism classification, interaction matrix, and deep-dive recommendations.

View Full Report →

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Ratings use Hindenrank's eight-dimension risk rubric. Lower score = lower risk. Grades range from A (safest) to F (riskiest). This is not financial advice.