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NFT Marketplace OpenSea Raises $23M, Led by Andreessen Horowitz
Transaction volume on OpenSea has grown more than 100x over the last six months.
Updated Sep 14, 2021, 12:29 p.m. Published Mar 18, 2021, 4:48 p.m.

Non-fungible token (NFT) marketplace OpenSea has announced a $23 million fundraise led by Silicon Valley venture capital firm Andreessen Horowitz (a16z).
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- According to the announcement Thursday, transaction volume on OpenSea has grown more than 100 times over the last six months.
- OpenSea lists among its creator contributors DJ and producer 3LAU, who announced the tokenization and auction of his latest album on the Ethereum blockchain in February.
- Devin Finzer, co-founder and CEO of OpenSea, describes blockchain as providing the "building blocks" missing from the internet that could deliver "more vibrant, open economies in the digital world."
- Andreessen Horowitz also recently led a $25 million funding round of Ethereum scaling solution Optimism.
See also: A Hacker Was Selling a Cybersecurity Exploit as an NFT. Then OpenSea Stepped In
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Protocol Research: GoPlus Security

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- As of October 2025, GoPlus has generated $4.7M in total revenue across its product lines. The GoPlus App is the primary revenue driver, contributing $2.5M (approx. 53%), followed by the SafeToken Protocol at $1.7M.
- GoPlus Intelligence's Token Security API averaged 717 million monthly calls year-to-date in 2025 , with a peak of nearly 1 billion calls in February 2025. Total blockchain-level requests, including transaction simulations, averaged an additional 350 million per month.
- Since its January 2025 launch , the $GPS token has registered over $5B in total spot volume and $10B in derivatives volume in 2025. Monthly spot volume peaked in March 2025 at over $1.1B , while derivatives volume peaked the same month at over $4B.
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GameStop Posted $9.4M Loss on Bitcoin Holdings in Q3

The firm has not announced any new bitcoin purchases since May, when it bought 4,710 BTC.
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- GameStop's (GME) bitcoin stash was worth $519.4 million at the end of its third quarter (Nov. 1).
- The company booked a $9.2 million loss thanks to bitcoin's price decline over the three month period.
- GameStop’s stock is down 5.8% on Wednesday.
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