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


Finance

As crypto trading platforms race to deploy AI agents, here's what a Nasdaq engineer is seeing

The exchange is expanding AI use across surveillance, compliance and trading as machines take over decision-making, leaving humans as the final checkpoint.

AI (Credit: (Aidin Geranrekab/Unsplash/Modified by CoinDesk)

Markets

Bitcoin $20,000 put option is third most popular strike ahead of quarterly expiry

Nearly $600M in deep out-of-the-money puts highlights tail-risk positioning, though flows point more to volatility strategies than to outright bearish bets.

OI By Strike Price (Deribit)

Finance

Browser maker Opera seeks 160 million CELO stake to become key network stakeholder

The proposed allocation represents a major share of Celo's circulating supply and 16% of its maximum supply.

opera browser on smartphone (Zulfugar Karimov/Unsplash/Modified by CoinDesk)

Finance

XRP treasury firm Evernorth discloses $233.7 million impairment on holdings in SPAC filing

The company reported a $233.7 million digital asset impairment for 2025, reflecting the gap between purchase prices and lower market values.

Trading screen with price monitors and charts (Yashowardhan Singh/Unsplash)

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Markets

Bitcoin sinks below $71,000, stocks close at session lows, as 2026 Fed rate cut hopes fade further

Fed chair Jerome Powell said rising energy prices are feeding into the inflation outlook, but "nobody knows" yet how lasting the impact will be.

Federal Reserve Bank Chair Jerome Powell

Finance

Polymarket acquires Brahma to scale blockchain trading infrastructure

"Building reliable infrastructure across blockchain networks and traditional financial rails is hard — there are no shortcuts,” said Polymarket CEO Shayne Coplan.

Shayne Coplan, founder and CEO of Polymarket (CoinDesk/Jesse Hamilton)

Markets

Federal Reserve holds policy steady as Iran war adds to growth and inflation concerns

Bitcoin remained sharply lower for the session following the expected decision by the U.S. central bank.

Jerome Powell speaking at podium

Tech

The Protocol: Ethereum community debates foundation’s new mandate document

Also: World’s AgentKit, Visa and Coinbase on AI agents, and prediction markets + AI.

image of someone splitting a log vertically in half with a long-handled ax

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Finance

Trump-linked American Bitcoin's BTC holdings overtake Mike Novogratz’s Galaxy Digital

American Bitcoin (ABTC) has climbed to become the 16th-largest bitcoin holder, with 6,899 BTC, as firms compete to build bitcoin treasuries.

Eric Trump, Co-Founder & Chief Strategy Officer, American Bitcoin speaks at Consensus 2025. (CoinDesk)

Markets

Bitcoin hash rate is tumbling as Iran war lifts energy prices

A falling hash rate and the resultant pressure on miners could signal another potential capitulation phase, which could push prices down further

Bitcoin hash rate has surged in 2024 (Hashage)