Stocks

A cluster of Polymarket wallets has made confident company‑earnings bets focused on firms audited by KPMG. Analysts observed concentration across 155 prediction pairs and wagers placed shortly before public disclosures. In February, prediction markets handled about $21B in volume, with Polymarket at $7.34B, both lower than January levels of over $26B and $7.6B.

On February 27, 2026, Amazon.com, Inc. said it would invest $50 billion in OpenAI as part of the AI firm's $110 billion private funding round, valuing OpenAI at $730 billion pre-money. The multi-year arrangement also designates Amazon Web Services as OpenAI's exclusive third-party cloud provider and expands OpenAI's AWS usage by $100 billion over eight years. Amazon shares traded around $208.21 with a modest intraday gain and a market cap near $2.218 trillion following the announcement.

On February 27, 2026, Moderna's stock fluctuated as the European Medicines Agency's CHMP issued a positive opinion for mCOMBRIAX, its combination influenza and COVID-19 vaccine for adults 50 and older. The shares initially spiked but then traded at $51.06, down 1.27% in early U.S. trading, even as Phase 3 data supported the recommendation and analysts remained divided on the company's outlook.

MARA Holdings said it booked a $1.71 billion net loss in Q4 2025 and a 6% revenue drop to $202.3 million as Bitcoin weakness drove a $1.5 billion revaluation. Shares rose about 12% pre-market while the firm outlined an AI and high-performance computing pivot, including a joint venture targeting over 1 gigawatt of IT capacity.

U.S. margin balances reached $1.279 trillion in Jan‑2026, a $53.445 billion increase from Dec‑2025, underscoring the leverage behind Bitcoin's advance. The U.S. Treasury's Feb. 4 guidance outlined up to $38B in liquidity buybacks and $75B for cash management, shaping collateral conditions as recession‑leaning indicators and policy timing keep risk correlations elevated.

Bitcoin fell about 3.3% within four hours on February 27, sliding from $68,000 to $65,770 after failing to reclaim $70,000 during the rebound that began on February 24. The $64,000 area is flagged as pivotal support, and a breach is seen as risking deeper losses and potential spillovers to U.S. equities.

Block shares rose more than 20% in premarket trading after CEO Jack Dorsey told employees the company will eliminate over 4,000 roles and reorganize around an AI-era operating model. The company's 8-K outlines a reduction of more than 40% to just under 6,000 employees from 10,205 as of Dec. 31, 2025, with $450 million to $500 million in charges and completion by the end of Q2 FY2026.

Robinhood (HOOD) shares rise 2.5% on Robinhood Chain testnet momentum. Explore tokenized asset drivers, technical outlook, and 2026 potential.

Circle's stock jumped almost 50% in under two sessions after the USDC issuer reported stronger-than-expected fourth-quarter earnings and revenue. The rally triggered an estimated $500 million in losses for short sellers and followed a prior 80% drawdown, but analysts said the move was driven mainly by crowded bearish positioning rather than a fundamental turnaround.

Accenture Plc (ACN) snapped a three-day losing streak on February 26, 2026, with shares surging 8.29% to close at $207.38. The rally follows a strategic partnership with French AI powerhouse Mistral AI, signaling a shift in investor appetite toward software and consulting victims of the hardware-led AI rally.