Stephen Alpher

Stephen is CoinDesk's managing editor for Markets. He previously served as managing editor at Seeking Alpha. A native of suburban Washington, D.C., Stephen went to the University of Pennsylvania's Wharton School, majoring in finance. He holds BTC above CoinDesk’s disclosure threshold of $1,000.

Stephen Alpher

Latest from Stephen Alpher


Tecnologia

Here's what next as Anthropic's most powerful AI model leaked via unsecured data cache

A draft blog post left in an unsecured data cache revealed a new model tier called Capybara that Anthropic says is more capable than anything it has built, with the company flagging "unprecedented" cybersecurity risks.

leak-water

Mercados

Crypto stocks battered as Nasdaq enters correction in $17 trillion market rout

The Friday plunge fits into a pattern since the war in Iran broke out, with gains on Monday turning into losses by the end of the week.

Crypto crash vs. correction (Unsplash)

Mercados

Anthropic’s massive 'Claude Mythos' leak sends software names — and crypto — sharply lower

The model could significantly heighten cybersecurity risks by rapidly finding and exploiting software vulnerabilities, potentially accelerating a cyber arms race.

CoinDesk

Mercados

Crypto edges off of worst levels after Trump extends Iran strike pause

It was an ugly day all around in markets as the Iran war has sent oil prices and bond yields surging higher.

Donald Trump points at the audience during a press conference at the White House.

Publicidade

Finanças

GameStop turned its $368 million bitcoin stash into an options income play

The video retailer sparked speculations of selling bitcoin after it transferred nearly all its coins to Coinbase Prime in January.

(Michael M. Santiago/Getty Images)

Finanças

OKX won’t rush IPO as exec warns poor listings hurt crypto industry

OKX aims to deliver consistent shareholder returns, even after a $25 billion valuation tied to its deal with Intercontinental Exchange, the parent company of the New York Stock Exchange.

OKX crypto Mastercard (Photo: OKX Press Office/Modified by CoinDesk)

Mercados

Bitcoin slips below $69,000 as oil rebounds on fading Middle East peace hopes

Crypto prices and risk assets remain at the mercy of macro headlines for now, one analyst said.

Bitcoin (BTC) price on March 26 (CoinDesk)

Mercados

Bitcoin holds ground as gold, silver slide on ETF outflows and liquidity strains: JPMorgan

The bank said institutional unwinding and weakening liquidity have hit precious metals, while bitcoin shows steadier flows and improving momentum amid geopolitical stress.

Gold outperforms bitcoin

Publicidade

Política

Stablecoin rewards restrictions can slow but not stop Circle's USDC, says Citigroup

USDC adoption hinges on volume, not circulation, the bank said

Jeremy Allaire, Co-Founder, Chairman and CEO, Circle Speaks at Hong Kong Fintech Week in 2024 (HK Fintech Week)

Mercados

MARA Holdings higher by 10% after selling $1.1 billion in bitcoin to fund debt buyback

The strategic move cuts debt, reduces dilution risk, and strengthens the balance sheet for expansion into AI and energy infrastructure, said the company.

MARA Holdings CEO Fred Thiel (CoinDesk)