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OpenSea runs an online marketplace where people buy and sell NFTs, which are unique digital items like artwork, collectibles, and virtual goods.
OpenSea is the biggest online marketplace for NFTs — unique digital items that live on a blockchain and can be bought, sold, and traded. People use it to buy digital art, collectible profile pictures, virtual land, game items, and other tokens, paying with cryptocurrency. Sellers list their items, buyers browse and bid, and OpenSea takes a small cut of each sale as its fee. It's essentially eBay for digital assets that anyone can verify and own.
The company was founded in 2017 by Devin Finzer and Alex Atallah, and it exploded during the 2021 NFT boom, when it briefly handled billions of dollars of trading volume a month and was valued at over $13 billion by investors. That rise made it a household name in crypto. But the boom faded fast. Trading volume collapsed, rivals like Blur undercut it on fees, and the company laid off a large chunk of its staff. Its once-dominant position is now more contested, and it has shifted focus toward a leaner, multi-chain model and new products. Money-wise, OpenSea earns a commission on each transaction, so its revenue rises and falls with trading activity rather than with the number of users alone. That makes the business highly cyclical: when crypto prices and NFT hype are hot, the fees pour in; when interest cools, revenue drops sharply. In 2022 it agreed to acquire the crypto wallet company Dharma, and in 2024 it revamped its platform to let users trade NFTs across many blockchains, aiming to win back traders who had migrated to cheaper rivals.
In late 2017, Devin Finzer and Alex Atallah watched a craze called CryptoKitties — digital cats you could buy and trade — clog up a blockchain. They saw a simple gap: people needed one clear place to buy and sell these unique digital tokens, so they started OpenSea as that marketplace.
Then came 2021, when NFTs went mainstream, and OpenSea became the default place to trade them. The numbers were wild for a young startup — monthly trading hit billions of dollars, millions of users showed up, and investors poured in money at a billion-dollar-plus valuation.
The frenzy kept climbing into early 2022, when a fresh funding round valued OpenSea at over thirteen billion dollars. Trading hit its absolute peak that spring — and that peak, as peaks tend to be, was the top of the mountain.
The drop was brutal. Trading volume fell by almost the entire market within months, from a roaring daily flood to a trickle. OpenSea had to cut about a fifth of its staff, and the boom years were suddenly over.
Just as OpenSea was shrinking, a rival called Blur went after the most active traders with tools built for them. OpenSea fought back with its own pro-trader product, but it came too late — Blur grabbed most of the trading volume, and the crown changed hands. This rivalry would set the tone for everything that followed.
Then came a different kind of threat. In 2024, U.S. regulators sent OpenSea a warning that some of the tokens traded on its platform might count as unregistered securities — the legal paperwork that traditionally comes with stocks. It was a serious cloud, but it lifted the following year when the case was dropped and the investigation closed.
With the legal cloud gone, OpenSea relaunched with a rebuilt platform called OS2, designed to trade not just NFTs but all kinds of crypto tokens across many blockchains. In its first two weeks it handled billions in trades — a strong sign the company was finding a second act.
To push further into token trading, OpenSea bought Rally, a crypto wallet and trading app, and brought its CEO on as chief technology officer. The message was clear: this was no longer just an NFT shop.
The comeback is far from finished. OpenSea put off its own SEA token indefinitely, blaming tough market conditions, while its share of the market had shrunk from roughly all of it at the peak to under a third. The company had remade itself as a multi-chain trading hub — but the easy days were long gone.
The core risk is straightforward: OpenSea doesn't create the digital art or items it sells, and it doesn't control the blockchains they run on. It is a middleman whose value depends on being the most trusted and liquid place to trade. If buyers and sellers move elsewhere, or if the broader NFT market keeps shrinking, the fee engine sputters. Even so, the brand remains one of the most recognized names in crypto commerce, and it stays private, held by its founders and investors rather than traded on a stock exchange.
Saved answer · last researched 4 Nov 2026