On 16 December 2025, Solana started evaluating post‑quantum cryptography on a test network in collaboration with Project Eleven. The initiative focuses on migration paths and quantum‑resistant signature schemes rather than immediately replacing Ed25519, reflecting a wider effort to future‑proof blockchain security.

On 16 December 2025, the UK High Court refused to reopen a major lawsuit linked to Bitcoin Satoshi's Vision that sought billions in damages based on hypothetical price outcomes. The ruling reinforces earlier UK case law that prioritizes investor responsibility and market risk over claims tied to "missed upside" or alternative market histories, narrowing the scope for future crypto litigation over delisting decisions.

On 16 December 2025, MetaMask launched native Bitcoin support, allowing users to buy, send, receive, and swap BTC directly within the wallet. The update reduces reliance on wrapped Bitcoin and aligns with a broader push toward chain-agnostic wallets that unify access to multiple blockchain ecosystems. This move is part of MetaMask's ongoing multichain strategy, positioning the wallet as a neutral interface rather than an Ethereum-only gateway.

On 15 December 2025, Strategy, the company previously known as MicroStrategy, disclosed a new weekly purchase of 10,645 BTC for $980.3 million at an average price of $92,098 per coin. With this acquisition, its Bitcoin stash has risen to 671,268 BTC, accumulated for about $50.33 billion at an average cost of $74,972. The deal was financed via several equity offerings, even as the firm faces potential MSCI index exclusion and ongoing crypto market volatility.

Goldman Sachs raised its S&P 500 outlook, citing earnings resilience and AI-enabled productivity, and sees the index near 7,600 in 2026. Morgan Stanley targets roughly 7,800 by the end of 2026, while Goldman projects EPS in the low $300s next year with further gains into 2027.

On December 13, 2025, Bitcoinsensus highlighted past DOGE advances of +190% and +480%, suggesting the current structure could be setting up another strong leg. Market technicians note that Dogecoin often builds a rounded base with fading volatility before momentum returns, while near-term trading remains range-bound without a decisive trend.

On 14 December 2025, Twenty One Capital listed on the New York Stock Exchange, holding more than 43,500 BTC worth nearly $4 billion. Its shares nevertheless fell around 20% and traded close to the net value of its Bitcoin reserves, indicating that public markets now expect clear revenue models and cash-flow potential rather than just large BTC treasuries. The weak debut also aligned with broader skepticism toward SPAC structures and cooling sentiment in Bitcoin-linked equities after a pullback in BTC prices.

On 14 December 2025 at 15:10, LINK's slide eased, with price action turning range-bound near a support area in the low-$12 region. The token continues to sit below key resistance, and $17 is viewed as the threshold that would shift momentum toward a more convincing recovery.

As monetary policy shifts from tight conditions toward a more typical macro backdrop, attention is turning to companies aligned with enduring structural themes rather than short-lived cycles. ChatGPT highlighted Microsoft, NVIDIA, Eli Lilly, NextEra Energy, and Visa as five large-cap names that combine sector leadership, strong balance sheets, and exposure to long-term trends. These firms are positioned in areas such as artificial intelligence, renewable energy, healthcare innovation, and digital payments, which could remain central to growth heading into 2026.