smart
Greg King, CFA (@GregoryDKing) — Twitter Score 26 out of 1000
Good
26Ranked #38,156 of 486,621 crypto accounts tracked by TwitterScore.io
Solana
toly 🇺🇸
Michael Saylor
Zhu Su
Frank
Adam Back
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About Greg King, CFA's Twitter Score
Greg King, CFA is a crypto asset-management and exchange-traded-product entrepreneur who founded Osprey Funds and REX Shares, and co-founded VelocityShares. Greg King, CFA's Twitter Score is 26 out of 1000 as of September 2026, ranking #38,156 (top 10%) among 486,621 tracked accounts.
Greg King, CFA has built a career around creating exchange-traded products, with REX Financial crediting him with filing a patent for the first exchange-traded note in 2006, launching the first VIX-linked products in 2009, and listing over 200 exchange-traded products on the NYSE, Nasdaq, and CBOE. He launched the first U.S. crypto staking ETF, SSK, in 2025. REX Financial itself took shape through a June 2024 reorganization that brought REX Shares, MicroSectors, T-REX products, and REX Advisers under a single umbrella.
Greg King, CFA founded Osprey Funds in 2018 to combine his financial-product experience with his interest in crypto, having been a bitcoin investor since 2013. Osprey filed a lawsuit against Grayscale in Connecticut Superior Court in January 2023, alleging that promotional statements about the Grayscale Bitcoin Trust violated the Connecticut Unfair Trade Practices Act; the parties agreed to settle in April 2025. A previously announced asset-purchase agreement concerning the Osprey Bitcoin Trust was terminated in January 2025 after the parties did not receive all required regulatory approvals by the end of 2024. The Osprey Solana Trust and Osprey Polkadot Trust were liquidated on July 15, 2026. The REX-Osprey platform offers spot-crypto ETFs and, where applicable, structures them to provide native on-chain staking rewards.
Greg King, CFA co-founded VelocityShares, which was acquired by Janus Capital Group in 2014. Before his entrepreneurial work, he previously worked at Global X ETFs as Executive Vice President and Head of Product Development and Strategic Ventures, at Credit Suisse as Head of Exchange Traded Products, and at Barclays Investment Bank as Head of iPath and Advisor Solutions. Greg King, CFA's account has accumulated 3,216 followers as of September 2026 across 401 posts. He has been mentioned by 5 accounts, with 6 total mentions.
Who follows Greg King, CFA on X?
The accounts that follow Greg King, CFA include 67 founders, 16 angel investors, 43 influencers and 3 VCs, among them Toly, Solana, Michael Saylor, Zhu Su, Frank and Adam Back.
