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James Rubin

James Rubin

James Rubin was CoinDesk's Co-Managing Editor, Markets team based on the West Coast. He has written and edited for the Milken Institute, TheStreet.com and the Economist Intelligence Unit, among other organizations. He is also the co-author of the Urban Cyclist's Survival Guide. He owns a small amount of bitcoin.

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Arianna Simpson, now a partner on the a16z crypto investment team, speaks a CoinDesk's Consensus: Invest 2017.
Finance
Venture capital
A16z to Boost Size of Its Third Crypto Fund: Report
The fund could lead to $50 million in annual fees, sources told blogger Eric Newcomer.
Arianna Simpson, now a partner on the a16z crypto investment team, speaks a CoinDesk's Consensus: Invest 2017.
By James Rubin
May 29, 2021 at 12:22 a.m. UTC
May 29, 2021
Venture CapitalAndreessen HorowitzCryptocurrency Funda16z
shareimg-poloniex
Policy
Poloniex
Ontario Regulatory Agency Alleges Poloniex Violated Securities Law
The Ontario Securities Commission says the Seychelle Islands-based trading platform did not register as an exchange.
shareimg-poloniex
By James Rubin
May 25, 2021 at 10:10 p.m. UTC
May 25, 2021
PoloniexOSCOntario Securities CommissionSecurities Law
Chia founder Bram Cohen
Finance
Andreessen horowitz
Blockchain Payments Platform Chia on an ‘Accelerated Timeline' to IPO
Amid the plans for its "near-term" IPO, the company plans to roughly triple the size of its workforce by year’s end.
Chia founder Bram Cohen
By James Rubin
May 25, 2021 at 12:06 p.m. UTC
May 25, 2021
Andreessen HorowitzBlockchainBram CohenNaval RavikantChia Network
Chia founder Bram Cohen
Markets
Venture capital
Blockchain Platform Chia Raises $61M From a16z, Others at $500M Valuation: Report
Founder Bram Cohen intends to take his payments company public.
Chia founder Bram Cohen
By James Rubin
May 24, 2021 at 8:43 p.m. UTC
May 24, 2021
Venture CapitalAndreessen HorowitzFunding RoundsChia Network
Goldman Sachs
Markets
Environment
Goldman’s Crypto Chief Worries About Fraud, but Not Cryptocurrency’s Future
The investment banking giant’s Mathew McDermott said the company would continue to expand its offerings in the cryptocurrency space to meet surging demand.
Goldman Sachs
By James Rubin
May 22, 2021 at 10:14 p.m. UTC
May 22, 2021
EnvironmentFraudGoldman SachsDigital Assets
The OCC warned consumers not to respond to scammers seeking their bitcoin wallet keys.
Markets
Fraud
OCC Warns of Fraudulent Emails Seeking Bitcoin Wallet Keys
The U.S. regulator said it did not send the messages or hold any funds for individual benefit.
The OCC warned consumers not to respond to scammers seeking their bitcoin wallet keys.
By James Rubin
May 20, 2021 at 1:01 a.m. UTC
May 20, 2021
FraudRegulationOCCBitcoin Scams
24-hour bitcoin price chart on May 19, 2021.
Markets
Volatility
Bitcoin Plummets to Below $40K
The world’s largest cryptocurrency by volume has dropped in a month nearly 40% from its all-time high.
24-hour bitcoin price chart on May 19, 2021.
By James Rubin
May 19, 2021 at 5:32 a.m. UTC
May 19, 2021
VolatilityBitcoin
U.S. Rep. Tom Emmer
Policy
Irs
US Congressman Reintroduces Bill With Tax Protections for Investors With Forked Crypto Assets
The legislation would outlaw penalizing taxpayers until the IRS clarifies its policies.
U.S. Rep. Tom Emmer
By James Rubin
May 18, 2021 at 8:00 a.m. UTC
May 18, 2021
IRSCongressRegulationTaxesHard Fork