Is Spark Savings Safe?
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 $3.3B in deposits and the battle-tested MakerDAO/Sky infrastructure behind it, Spark Savings earns a B risk grade. The protocol expanded into institutional lending via Spark Prime (February 2026) with Anchorage Digital integration.
TVL
$1.9B
Mechanisms
5
Interactions
4
Value Grade
C-
Key Risks for Spark Savings Users
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.
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.
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. SparkLend is evaluating removing sDAI/sUSDS as collateral to reduce this risk.
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 $3.3B 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. SparkLend is also evaluating removing sUSDS/sDAI as collateral, which could reduce leveraged yield strategy demand.
How Spark Savings Compares to Peers
Spark Savings ranks #3 of 116 Yield protocols (top quartile — safer than most). At a risk score of 22/100, it's 15 points safer than the sector average of 37/100.
Adjacent peers: sDAI (B+, 19/100) is ranked just safer, and Carrot Liquidity (B, 23/100) is ranked just riskier.
Spark Savings holds 11% of TVL across all rated Yield protocols ($1.9B of $16.7B total).
See the full Yield sector leaderboard or the Spark Savings vs Carrot Liquidity comparison.
Common Questions about Spark Savings
Plain-English answers based on Spark Savings's scores across Hindenrank's 8 risk dimensions. The highest-scoring (riskiest) dimension is Scale Exposure (7/10).
Has Spark Savings ever been hacked or exploited?
Spark Savings has a fairly clean operational history. The track record dimension scored 1/15, indicating minor or no significant incidents on record. A clean track record is a positive signal but it does not guarantee future safety, especially as protocol complexity grows.
How much money is at stake in Spark Savings?
Spark Savings currently holds over $1.9B in user deposits. A protocol of this size typically has deeper liquidity, more eyes on the code, and more attention from auditors — but it also means a single failure has a much larger blast radius.
What's the worst-case scenario for Spark Savings?
Hindenrank has identified specific collapse scenarios for Spark Savings. The most prominent: "Sky Protocol Systemic Failure Impacting Savings Module". The trigger condition is A systemic event in Sky Protocol (massive bad debt, RWA default, regulatory action against DAI/USDS) impairs the DSR module's ability to honor redemptions at par. Reading through the full scenario list on the protocol page is the single best way to understand the actual failure modes — generic "smart contract risk" is rarely the thing that takes a protocol down.
Is Spark Savings regulated or insured?
Spark Savings has low regulatory exposure on Hindenrank's framework (3/10). The protocol is structured in a way that minimizes counterparty and jurisdiction concentration, though regulatory risk in crypto can change rapidly. No DeFi protocol carries FDIC-style insurance — even with low regulatory risk, depositors are not protected in the way bank customers are.
What are the biggest red flags for Spark Savings?
Hindenrank's retail-focused risk audit flagged: 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. 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. 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. SparkLend is evaluating removing sDAI/sUSDS as collateral to reduce this risk.
Should beginners deposit into Spark Savings?
Spark Savings is rated B, which is acceptable for users who understand the protocol's mechanism. Beginners should read the full risk breakdown and only deposit after they can articulate the top three failure modes. If you cannot explain how the protocol works, do not deposit.
How does Spark Savings compare to safer Yield alternatives?
Spark Savings is one protocol in Hindenrank's Yield coverage. The safest Yield protocols on the leaderboard tend to share three traits: a long incident-free track record, conservative mechanism design, and high-quality public documentation. Compare Spark Savings against the full Yield ranking before committing capital.
For the full 8-dimension score breakdown, the radar chart, and dependency graph, see the Spark Savings risk report.
Read the Full Spark Savings Risk Report
This protocol has 2 collapse scenarios. See the full mechanism classification, interaction matrix, and deep-dive recommendations.
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