On 21 December 2025, Bitcoin was trading near $88,296 and on course to finish the year with a negative yearly candle. Long-term price records indicate the asset has never logged two consecutive red yearly closes, with past down years such as 2014, 2018, and 2022 each followed by recoveries. If this pattern persists, the current setback could again precede a rebound after 2025, although future performance remains uncertain.

On December 21, Cardano's ADA fell 4.93%, with the price hovering near local support around $0.3576 and trading at $0.3605. If buyers fail to regain control by the daily close, the price may retest supports at $0.3550 and $0.3468, with a further midterm target near $0.2756 if the weekly bar ends at or below current levels.

US spot Ethereum ETFs registered more than $600 million in net outflows over the past week. BlackRock iShares Ethereum Trust ETHA saw about $470 million withdrawn, while Fidelity FETH and Grayscale ETHE posted roughly $35 million and $49 million. ETH traded near 2,975 dollars with little change over the last day.

Several major crypto research desks outlined sharply different Bitcoin projections for 2026, with targets ranging from a pullback toward $60K–$65K to a potential move toward $250K. Around $23 billion in BTC options expiring on 26 December and recent ETF outflows near $500 million could shape short‑term volatility around the $85K–$90K range.

In December 2025, Tencent was reported to be using Datasection's data centers near Osaka and in Sydney to access thousands of Nvidia's latest GPUs under multi‑year contracts, despite U.S. export limits on high‑end chips to China. Datasection's initial batch of 15,000 Blackwell processors and planned deployment of tens of thousands of B300 chips underpin deals exceeding $1.2 billion, while the company faces investor scrutiny, short‑seller criticism, and regulatory sensitivity around its links to Chinese clients and Singapore‑based First Plus Financial Holdings. The firm says its GPU projects are fully compliant with applicable laws and rely on approvals from Nvidia and the U.S. Commerce Department.

On December 21, Dogecoin fell 1.52% to trade near $0.1296. Intraday charts show local support around $0.1287; failure to rebound by day's end could open a move toward $0.1250. On higher time frames, resistance at $0.1330 remains intact, with a possible slide to $0.12–$0.1250 or a late-month bounce toward $0.14.

Cardano (ADA) rebounded above its 20-day EMA, and CryptoCeek says a clean move past the 50-day SMA at $0.50 could pivot price action from consolidation toward $0.60–$0.70. The analyst also warns that a rejection near $0.50 may force a drop back below the 20-day EMA. Separately, Charles Hoskinson proposed an XRP-focused DeFi summit at the University of Edinburgh.

Dogecoin fell 1.21% over the past 24 hours to $0.1297, hovering near a key $0.128 support after a multi-year trendline break. On December 21, 2025, Ali Charts warned that sustained selling could open a move toward $0.090. House of Doge detailed 2025 milestones and payments plans slated to begin rolling out in Q1 next year.