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SparkLend has increased its Wrapped Bitcoin (wBTC) deposit ceiling from 3,000 to 30,000 wBTC, effective May 11, 2026. The DeFi lending protocol, which operates within the MakerDAO ecosystem, said the update was confirmed after reaching the previous limit. The change is intended to expand borrowing capacity and increase available liquidity for Bitcoin-backed positions on the platform.
SparkLend listed wBTC on March 31, 2026, and users filled the initial 3,000 wBTC cap within weeks. The protocol then received approval for a tenfold increase to accommodate sustained demand, setting the maximum deposit level at 30,000 wBTC.
The platform uses a cap automator that adjusts limits in scheduled increments. It raises the ceiling by 500 wBTC every 12 hours. Based on that schedule, the system would take about 27 days to reach the full 30,000 wBTC threshold.
SparkLend confirmed the update took effect on May 11, 2026. It said the automated process will continue until the new cap is reached, increasing the limit in programmed intervals rather than all at once.
The protocol reported total value locked (TVL) of about $3.55 billion in May 2026. Reports indicated TVL reached $3.6 billion in April 2026. The figures reflect on-chain data tracked across supported assets.
SparkLend also supports cbBTC and LBTC as Bitcoin-linked collateral options. These assets are used to enable decentralized borrowing across different networks, expanding liquidity sources tied to Bitcoin.
With the wBTC cap increased, the protocol removed the prior access limit that prevented deposits once the 3,000 wBTC ceiling was reached. The revised structure allows additional participation over time as the automated increases proceed.
wBTC is designed to maintain a 1:1 peg with Bitcoin through custodial backing. The asset’s performance depends on reserve transparency and operational integrity, and disruptions in that structure could affect protocols holding wBTC.
Sharp Bitcoin price declines can trigger liquidations for loans backed by wBTC collateral. Liquidations can increase selling pressure on underlying assets, a mechanism that is standard across decentralized lending platforms.
SparkLend said support for cbBTC and LBTC spreads exposure across Bitcoin-linked instruments. The protocol continues to operate within MakerDAO’s framework, and the cap expansion process remains active as of May 2026.
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