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Kalshi-Powered Prediction Markets Go Live On Solana
Plus: 🔗 First Chainlink ETF set to debut, ⚡ Coinbase introduces instant unstaking, 🛠️ Yearn recovers $2.4 millions after exploit.
Juan Aranovich
December 02, 2025
Hi! In today’s edition:
🎯 Kalshi launches tokenized prediction markets on Solana
🔗 First Chainlink ETF set to trade on NYSE Arca
⚡ Coinbase rolls out instant unstaking with a 1 percent fee
🛠️ Yearn recovers $2.4 millions from its $9 millions exploit
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By Tikta
Kalshi-Powered Tokenized Prediction Markets Go Live on Solana
Kalshi has launched tokenized prediction contracts on the Solana blockchain — a move that transforms Kalshi’s traditional event contracts into Solana-based tokens.
Kalshi’s partnership with DFlow and Jupiter connects its regulated off-chain orderbook with open liquidity pools on Solana, aiming to provide better pricing and market depth through tokenization.
The integration with Solana aims to provide faster execution and deeper liquidity to Kalshi’s prediction markets, which have been seeing rising trading volumes, with industry-wide activity reaching nearly $28 billion as of October.
It also puts Kalshi in direct competition with Polymarket, another leading platform that already uses onchain trading.
Another Tuesday, another martini 🍸️
Tune in at 12pm ET for DEX in the City with Jessi Brooks, Katherine Kirkpatrick Bos, and Vy Le. Our favorite crypto lawyers discuss the legal third rail, crypto bans, why decentralization matters, and more!
First Chainlink ETF to Begin Trading on Tuesday
The first Chainlink (LINK) spot exchange-traded fund (ETF) is set to begin trading on the NYSE Arca exchange.
The ETF will trade under the ticker GLINK and represents a conversion of Grayscale Investments’ Chainlink Trust after the firm received approval to convert the fund into an ETF from the U.S. Securities and Exchange Commission (SEC).
It marks Grayscale’s third crypto spot ETF launch in two weeks, following similar products for XRP and Dogecoin.
The listing also coincides with a report from Bloomberg noting that Vanguard — the world’s second-largest asset manager — would allow ETFs and mutual funds that primarily hold crypto to be traded on its platform.
“The 2nd largest brokerage in America flips its policy from sell-only to allowing crypto ETF purchases. And no one is fired up,” said Bitwise CEO Hunter Horsley on X.
“Whether people are stoked right now or not — crypto is rapidly entering the mainstream.”
Coinbase Launches Instant Unstaking
Crypto exchange Coinbase has launched an instant unstaking feature that allows users to unstake their crypto assets immediately by paying a 1% fee.
The new option overcomes the traditional wait times for unstaking, which on blockchain protocols can take anywhere from a few minutes to several weeks depending on the asset.
Coinbase CEO Brian Armstrong used ETH as an example, which has a typical wait time of 38 days to unstake assets when joining the standard unstaking queue.
Aside from the first option, users can either wrap staked ETH into Coinbase-issued cbETH, which has liquid markets, or instantly unstake for a 1% fee, Armstrong explained.
Yearn Recovers $2.4M Stolen in $9M Exploit
Yearn Finance has recovered $2.4 million in stolen crypto following an exploit caused by an "unchecked arithmetic" bug in its custom yETH contract.
In an update shared to X, the Yearn team said that 857.49 pxETH was recovered through a coordinated recovery effort with DeFi platforms Plume and Dinero.
The bug allowed the attacker to mint an astronomically large number of tokens, creating a near-infinite supply to drain liquidity. Yearn estimated the total loss from the exploit sits at $9 million.
The stolen assets included 1,000 ETH and liquid staking tokens laundered partially through Tornado Cash.
According to Blockscout, the attack exploited a critical arithmetic flaw in the yETH token contract that enabled manipulation of token supply through unchecked calculations.
Self-destructing "helper contracts" automated the exploit, allowing malicious minting and withdrawal sequences before deleting themselves to obscure traces.
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🔄 Global crypto trading activity slumped in November as spot volumes on major exchanges sank to $1.59 trillion — a 26.7% drop to the lowest level since June — while decentralized platforms fell even harder with a roughly 30% slide to $397.8 billion, signaling a broad cooling in market participation.
🏦 Strategy set aside a $1.44 billion reserve funded by ongoing stock sales to guarantee a year’s worth of preferred dividends and interest payments while holding 650,000 BTC, framing the buffer as protection against the extreme price swings tied to its bitcoin-heavy balance sheet.
📨 Coinbase revealed in its latest transparency report that it received 12,716 government data requests over the past year, up 19% annually and with a record 53% coming from outside the U.S., led by huge increases from countries like France, which more than doubled its inquiries.
⛏️ Bitcoin miners entered their harshest earnings climate yet as November’s price drop drove revenue down to about $35 per petahash — well below the $44 median cost for major operators — while soaring network hashrate stretched machine payback periods past 1,000 days, exceeding the countdown to the next halving.
🎁 Ethereum developers are trialing a zero-knowledge–powered privacy system that lets users anonymously match for “Secret Santa”–style interactions, a technique that hides identities, prevents cheating, and may lay the groundwork for private voting, confidential DAO actions, whistleblowing tools, and stealth airdrops.
🚀 Vanguard will allow trading of Bitcoin, Ether, XRP, Solana and other crypto-focused ETFs and mutual funds on its platform starting today, reversing its long-standing opposition to digital-asset products while still refusing to launch any crypto funds of its own — and excluding anything tied to memecoins.
🖥️ BitMine said its mix of crypto and cash had ballooned to $12.1 billion — including 3.73 million ETH and nearly $900 million in cash.
