Bitcoin recovered from $86,286 on December 2 to $93,324, gaining 8%, while American Bitcoin (ABTC) shares dropped as much as 50% intraday. The divergence reflects different catalysts: Bitcoin benefited from improved macroeconomic conditions and Vanguard's expanded crypto ETF access. ABTC suffered from a lock-up expiry that flooded the market with previously restricted shares.

Anthropic's Frontier Red Team demonstrated that AI agents autonomously reconstructed 19 real smart contract exploits from 34 incidents occurring after March 2025, extracting $4.6 million in simulated value. GPT-5 scanned 2,849 BNB Chain contracts at $1.22 per target, uncovering two zero-day vulnerabilities worth approximately $3,694 in simulated profit, according to research published December 1.

Bitcoin climbed 11% from $83,822.76 on December 1 to surpass $93,000 as the Federal Reserve formally concluded quantitative tightening and injected approximately $38.5 billion in liquidity through repo operations. The rally gained momentum after Vanguard opened its platform to crypto ETFs for the first time, while weak manufacturing data pushed rate-cut expectations above 85%. The price movement reflected multiple converging factors including the Fed's policy shift, Vanguard's distribution milestone, and short-covering from oversold levels.

Solana-based memecoin trading declined to $13.9 billion in November 2024, the lowest monthly total since February 2024. Prediction platforms Polymarket and Kalshi combined for nearly $8 billion in volume during the same period, representing 57% of Solana's memecoin activity. The ratio marks a sharp increase from below 10% in August.

Ethereum's Fusaka upgrade activates Dec. 3 at 21:49 UTC, implementing PeerDAS data-availability sampling and raising the default block gas limit to 60 million. The fork prepares infrastructure for blob-capacity expansions through parameter adjustments scheduled for Dec. 9 and Jan. 7. The upgrade targets higher rollup throughput and tighter blob fee markets without altering consensus-layer staking structures.

Bitcoin price movements now depend on ETF flows, perpetual swap funding, stablecoin liquidity, holder behavior, and macro conditions rather than traditional on-chain signals alone. Since US spot Bitcoin ETFs launched in January 2024, institutional capital flows and derivatives positioning have become primary drivers of BTC volatility.

Solana-based tokens recorded double-digit price increases on Upbit following a security breach that resulted in approximately $32 million in unauthorized withdrawals. The price surge occurred after arbitrage bots stopped operating, removing the mechanism that normally keeps prices aligned between Korean and global markets, according to CryptoQuant CEO Ki Young Ju.

JPMorgan has filed with the SEC for a structured note offering 1.5x leveraged exposure to BlackRock's iShares Bitcoin Trust, targeting December 2028 maturity with potential minimum 16% returns by December 2026. Strike CEO Jack Mallers disclosed that JPMorgan Chase terminated his personal accounts, citing "concerning activity" under Bank Secrecy Act monitoring. The developments highlight the bank's dual approach of expanding Bitcoin-linked products for wealth clients while restricting access for crypto industry executives.

Between November 21 and November 22, 87,464 BTC moved out of institution-tagged wallets, data show. The movement primarily reflected custody reshuffling rather than selling pressure. Strategy accounted for 49,907 BTC in transfers to new custodians while adding 8,178 BTC to holdings during the period, according to Timechain Index founder Sani.