defi

The Nasdaq-listed company SharpLink (SBET) announced that it has cumulatively deployed $400 million in ETH to the liquidity staking protocols Ether.fi and Lido. The company stated that both funds have been actively invested, aiming to enhance the yield efficiency of its ETH treasury.According to the plan announced in August, SharpLink intends to stake $200 million in ETH through Lido and obtain wstETH, with the related assets being custodied by Anchorage Digital. The other portion of the funds will be deployed through Ether.fi to the Linea network under Consensys, and jointly participate in re-staking with EigenCloud to obtain DeFi yields and incentives.SharpLink is one of the largest enterprise-level ETH holders globally, advocating for Ethereum ecosystem applications for a long time. This deployment continues its existing staking and re-staking strategy, further allocating treasury assets to institutional-grade DeFi products.

According to The Defiant, THORChain announced that its v3.21 upgrade will fix the FIN contract vulnerability on Rujira and allow the previously paused application layer to restart. The network has set the upgrade target at block height 28,366,100, with an expected time around October 23. After the restart, trading, lending, borrowing, and automated trading on Rujira will resume. Rujira's products run through smart contracts within THORChain, rather than on an independent blockchain, and the application layer can pause these contracts without affecting the underlying layer of THORChain.According to Rujira, the vulnerability was discovered on September 26, when an attacker transferred a custom concentrated liquidity position without holding a position. The team paused the application layer with the support of node operators, and only one position from the Rujira team itself was affected, with no loss of user funds. Rujira attributed the vulnerability to a flaw in the position transfer function, rather than the trading logic of the liquidity strategy. On September 27, Rujira stated that the fix is located at the underlying layer and has been scheduled for the v3.21 upgrade.Regarding the restart window, Rujira proposed a conditional grace period in its plan on October 15: if the application layer is ready to resume, any credit account position with a loan-to-value ratio above 100% and meeting liquidation conditions will request node operators to pause the credit account contract for an additional 24 hours, allowing borrowers to replenish collateral before liquidation resumes. Borrowers can replenish collateral through Rujira Borrow or by directly transferring assets to the credit account address. Rujira indicated on October 10 that positions still deemed unsafe after the grace period may be liquidated when the liquidator triggers the process.

According to official news, the treasury company SOL DeFi Development Corp. (NASDAQ: DFDV) announced today that its treasury balance increased by 3,983 SOL in the past week, bringing the total holdings to approximately 2,590,266 SOL and SOL equivalents.

According to the Financial Times, the deposit scale of crypto lending vaults has surpassed $10 billion, a significant increase from $4 billion at the beginning of last year, reflecting the growing demand from investors for digital asset yield strategies. These vaults operate through smart contracts on decentralized finance platforms, with each vault having a "curator" who effectively acts as an investment manager responsible for selecting lending strategies, setting risk limits, and charging fees. Their yields typically range from 3% to 10%, with riskier strategies yielding up to 20% or even higher.The allure of returns comes with significant risks. Loans may be collateralized by illiquid tokens, crypto-asset-backed stablecoins, or tokenized private credit, and if the collateral depreciates or becomes difficult to sell, depositors will face losses. Automatic liquidation may exacerbate market downturns, while hacking attacks, code errors, and pricing mechanism flaws can introduce additional vulnerabilities. Although publicly accessible smart contracts provide transparency, investors may focus only on surface yields while overlooking their underlying risk exposures. Major depositors currently include fintech companies, digital asset treasury firms, and hedge funds.Bitcoin lending institution Two Prime is one of the companies that recently entered this market. The company launched a Bitcoin lending vault on the Pareto platform in September, targeting an annualized yield of 1.5% to 2% through institutional lending. This vault accepts wrapped Bitcoin, with a minimum deposit of 5 WBTC, and has invested approximately $10 million of its own funds to absorb initial losses. On the regulatory front, the U.S. Securities and Exchange Commission has raised questions regarding the securities held by the vaults, while European regulators have proposed regulating intermediaries that provide access to DeFi.

Approximately half of the market value of the tokenized stocks issued by Coinbase has been deployed in DeFi protocols on the Base network, involving fractional shares of large companies such as Apple and Nvidia, and is open to eligible non-U.S. users on the Base platform. As of the time of reporting, approximately $262.4 million of such assets have been deployed in DeFi protocols, an increase of about 18 times compared to $14.66 million at the beginning of 2026.Related assets can be traded on decentralized exchanges and used as collateral for lending. Coinbase previously disclosed that the trading volume of tokenized U.S. stocks on Base reached $1.5 billion on DEX in the past 30 days, an increase of 313% compared to the previous 30 days.

The decentralized perpetual contract exchange Deepsigma has launched a real-time simulation trading platform, covering 77 traditional financial markets, including U.S. stocks, stock indices, commodities, and U.S. Treasury yield rates. The platform is developed based on the Cypherium blockchain, driven by a team of alumni from Goldman Sachs, Citadel Securities, Google, and Uber, supporting long and short exposure trading of related assets.Deepsigma's perpetual contracts do not tokenize, custody, or physically deliver the underlying assets but instead track prices through external market data sources. The platform currently supports the S&P 500 Index, Dow Jones Industrial Average, Nasdaq Composite Index, Russell 2000 Index, Cboe Volatility Index, as well as contracts for crude oil, gold, silver, natural gas, and copper. The platform's risk engine employs multiple external price sources, mark prices, circuit breaker mechanisms, partial liquidation, and insurance funds, and uses a central limit order book and clearing layer to handle margin, collateral, and settlement.Deepsigma is also developing a decentralized identity framework based on zero-knowledge proofs and configuring off-chain AI analysis tools with no fund execution permissions; the underlying Cypherium utilizes a hybrid PoW and HotStuff Byzantine Fault Tolerance consensus mechanism, holding 4 U.S. patents.

According to data from the U.S. Department of the Treasury, as of September 30, the fiscal year 2026 U.S. budget deficit expanded by $217 billion year-on-year to $1.99 trillion, the highest level since the fiscal year 2021. Fiscal revenue reached a record $5.4 trillion, while expenditures amounted to $7.4 trillion. Debt service expenditures increased by 12% to $1.36 trillion. A Supreme Court ruling led to the refund of $145 billion in tariffs, resulting in a net tariff revenue decline of 11%. The budget deficit accounted for 6.2% of GDP.

Binance Wallet announces the launch of the DeFi API. This interface is based on its Web3 API infrastructure, allowing developers to integrate DeFi capabilities without connecting to each protocol individually, initially supporting 10 EVM chains including BSC, Ethereum, Base, and Robinhood Chain.The interface covers protocols such as Aave, Morpho, and Uniswap, supporting the discovery of DeFi products, tracking positions, obtaining protocol insights, and building trades. It also allows for the creation of trades to add liquidity to supported bStocks liquidity pools. Solana support is coming soon.

Aave V4's Arc Markets connects USD and EUR loans to shared liquidity. This deployment went live on September 16 and includes four types of reserve assets.Among them, the Forex market allows borrowers to collateralize EURC, while EURC does not qualify as eligible collateral in Arc's Main market, thus both markets share the same liquidity source.

According to The Block, Nasdaq-listed Solana reserve company DeFi Development Corp. (DFDV) announced that it will raise the annual dividend yield of its CHAD preferred stock from 13% to 14%, effective November 2. Based on a par value of $10 per CHAD share, the annual dividend will increase from $1.3 per share to $1.4 per share, paid once every business day, contingent upon the company's board declaring the dividend. The company stated that future funds raised from CHAD issuance will be used to expand its Solana reserves, which generate income through staking and validating node operations.CEO Joseph Onorati stated that raising the dividend yield to 14% will help expand investor participation and grow the scale of CHAD. He noted that the appeal of CHAD lies in providing double-digit dividend income through Nasdaq-listed preferred securities, with daily payouts, while the issuer holds income-generating SOL reserves. The company aims to position CHAD as a leading digital credit tool, enhancing the ability to accumulate SOL, adding value for common stock shareholders, while maintaining prudent capital management.DeFi Development increased its holdings by approximately 22,070 SOL and equivalent assets last week, raising its total holdings to about 2.59 million SOL; the company stated that CHAD reached a new trading price high that week and recently approved a buyback plan to repurchase up to all issued CHAD shares.

According to The Defiant, the on-chain insurance protocol Firelight based on the Flare network announced on October 15 that its on-chain insurance has launched the Protected Strategies USDC vault for Kraken DeFi Earn, providing a collateral-backed compensation mechanism for specific protocol failures.The independent manager of the vault, Sentora, insures the vault rather than Kraken itself. Depositors do not need to actively choose to participate, but the insurance comes with conditions: Kraken discloses that the compensation limit for each deposit address during each insurance period is $100,000, and the total compensation amount is also constrained by the overall vault limit and available capital. Compensation is issued by Sentora in USDC to eligible wallets, and Kraken does not provide funds or guarantees.Firelight lists six types of failures that are eligible for compensation: smart contract vulnerabilities, oracle failures, governance attacks, and bad debts, depegging, or redemption failures caused by protocol mechanism failures. Insurance only applies to markets and positions recorded during the insurance period. Normal fluctuations, normal liquidations, depegging that operates as designed during redemption, and withdrawal delays caused by high organic utilization are excluded; insider theft, stolen private keys, phishing, and regulatory actions are also not covered.The trigger conditions for redemption failure are if the insured position cannot be withdrawn for more than 72 consecutive hours, or if the amount returned after deducting disclosed fees is less than 90% of fair value. Compensation does not require depositors to file claims themselves, as it is determined by a five-member risk committee through a three-fifths majority vote.On-chain records show that the insurance scale marked as "Kraken DeFi Protected" is $30.5 million.

Grayscale announced a partnership with the investment platform Republic to offer Grayscale's investment products to qualified investors, including the Grayscale DeFi Fund, Grayscale Decentralized AI Fund, and Grayscale Data Network Trust.Among them, the DeFi Fund covers tokens such as UNI, AAVE, ONDO, ENA, CRV, and LDO; the Decentralized AI Fund covers tokens such as NEAR, TAO, RENDER, and FIL; the Data Network Trust provides investment exposure to the native token DATA of the DATA Network.

According to The Defiant, Jupiter has launched a beta trading product called YOLO, which supports up to 1000 times leverage, and this product has not yet been audited.According to the official statement, users trade against the platform's capital pool (house) in this product. When the capital pool is insufficient, users' profits will be queued for processing, and there is no guaranteed payment time.

The decentralized trading protocol Uniswap announced that the VolatilePair Hook has been launched on the Ethereum mainnet, with the first trading pair being ETH/USDC. This is a dynamic fee Hook for liquidity providers in Uniswap v4, where fees adjust according to market fluctuations.Uniswap stated that this year, the trading volume of volatile trading pairs on Uniswap exceeded $50 billion. Unlike stablecoin trading pairs, these assets do not have a fixed price, and liquidity providers under static fees will bear the price changes not covered by the fees. This Hook recalculates the buy and sell rates separately for each exchange based on recent price changes, maintaining competitive spreads.When the pool price rises, the buying cost is higher and the selling cost is lower; when the price falls, the direction of the fees is reversed. After significant price changes, trades that drive price retractions will pay temporary fees. Pool parameters and fee logic can be upgraded through Uniswap governance without the need to migrate liquidity pools. The StablePair Hook, launched in September, introduced dynamic fees for stablecoin trading pairs, achieving a trading volume of $3.1 billion within four weeks. The VolatilePair Hook is part of the Hooks launched by Uniswap Labs, along with StablePair, Permissioned Pools, and LitePSM.

X user Irene Patrikios (@crypto_irene) announced that she has been appointed as the Chief Business Officer of the fully homomorphic encryption company Zama. She stated that she has been working in the cryptocurrency industry for nearly 12 years and believes that blockchain requires institutions, enterprises, and individuals to publicly operate financial activities, a gap that has long existed and is difficult to support large-scale funds on-chain. She joined the company in November 2025, before the launch of the Zama mainnet, and stated that confidentiality is the infrastructure that enables institutions holding global capital to truly go on-chain, and Zama is providing this capability.Irene Patrikios also mentioned that over the past year, Zama's business team has reached collaborations with several major participants to launch confidential DeFi and establish a business pipeline. Zama's CEO Rand Hindi and the board are increasing support for the next phase of the team's development. She expressed her gratitude to Rand Hindi, the board, and the Zama team.

The decentralized trading protocol Uniswap has launched an ETH/USDC trading pool, which uses a separated fee mechanism for buying and selling, applying different fee standards for buy and sell transactions.This pool is implemented through the VolatilePair Hook, which will charge temporary fees on trades that reverse significant price fluctuations, aiming to retain more arbitrage value for liquidity providers.

According to The Defiant, Babylon is advancing a native Bitcoin collateralization plan for Aave V4. Under this proposal, the collateral will remain on the Bitcoin network, while the permissionless liquidation process will settle using WBTC.Currently, the risk parameters of the plan and subsequent governance votes are yet to be determined.

Chainlink's Data Feeds and Data Streams have officially launched on the Stellar network.Stellar stated that developers can use this to access reliable market data, develop lending markets, prediction markets, perpetual contracts, and other DeFi applications, further enhancing the utility of Stellar's over $4 billion RWA ecosystem.