NFT sales fell 15.28% to $37.54 million this week, down from roughly $44.31 million, and the split between the two numbers inside that stat is the whole story. Buyer addresses jumped 174.04% to 114,977 and seller addresses rose 151.72% to 108,037, while the number of transactions fell 9.08% to 808,432, per CryptoSlam data captured on Sept. 19. More wallets showed up to a market that generated fewer trades and less money, meaning the average participant spent much less per interaction. That is the profile of a market widening at the bottom while thinning at the top, and it maps neatly onto a crypto week where Bitcoin rebounded toward $81,300 but almost none of that risk appetite reached profile-picture collections.
What the NFT sales data says, blockchain by blockchain
Ethereum kept the crown by a wide margin, with $15.32 million in organic sales, down just 2.66%, and buyer addresses up 63.82% to 13,546. Wash-trading volume on Ethereum fell 52.41% to $443,802, a rounding error against its organic total, which is why Ethereum's lead is the most trustworthy number in the report. Polygon ranked second at $7.09 million in organic sales, down 4.88%, but CryptoSlam identified $18.07 million of wash trading there, meaning more than 70% of Polygon's combined $25.15 million volume was flagged artificial. The week's totals reward reading the fine print, because a headline built on combined volume would make Polygon look like a challenger to Ethereum when its organic reality is less than half the size.
The declines steepen from there. Bitcoin NFT sales plunged 53.99% to $4.33 million even as buyer addresses climbed 141.29% to 5,441, the sharpest divergence in the dataset: the Bitcoin collectibles wave that inflated earlier weeks is deflating in dollars while still recruiting wallets. BNB Chain fell 36.26% to $2.58 million despite the largest buyer growth of any major network, up 384.73% to 10,732. Base was the only top-five network to grow, up 4.06% to $2.16 million, though its wash volume jumped 79.91% to $4.8 million. Solana slipped 11.08% to $1.89 million. The six leading networks generated about $33.36 million in organic sales, nearly 89% of the global total.
Courtyard, Alchemix and the changing definition of an NFT sale
The collection rankings show where the real money moved. Courtyard on Polygon led with $6.3 million, down just 0.93%, on 123,504 transactions, a physical collectibles marketplace doing steady, small-ticket business that looks nothing like the NFT market of 2021 and everything like the one that survives 2026. Ethereum-based Argonauts ranked second at $2.74 million after a 36.91% decline. Then the data gets strange. Alchemix V3 Transmuter placed third after sales jumped 622.03% to $1.83 million, but almost all of that came from eight transactions involving four buyers, and the tokens are linked to positions in a DeFi protocol rather than artwork or profile pictures. CryptoSlam counts these transfers as NFT sales, but the dashboard cannot establish their economic purpose, which is a polite way of saying the week's biggest "collectibles" were finance.
The top-sales list makes the point unmissable. Alchemix V3 Transmuter #219 sold for $770,985, or 297.4017 WETH, with #214 at $715,216, #216 at $196,748 and #208 at $126,695, together accounting for about $1.81 million, nearly all the collection's weekly volume. A Bitcoin BRC-20 token filled the remaining top-five slot at $402,534. Below them, Guild of Guardians Heroes on Immutable-Zk generated $986,168 and Panini America took in $893,356, while CryptoPunks managed just $706,667 across nine transactions. The blue-chill graze continues: nine CryptoPunks changed hands all week, and the wash of gaming shutdowns that marked the sector's month has left the NFT gaming bench thin.
What the numbers actually mean
Two cautions and one conclusion. The caution: address counts are not people, and CryptoSlam's own wash-trading flags show why raw volume should be discounted, especially on Polygon, Base and BNB where buyer-address growth was explosive but dollars were not. The conclusion: the NFT market that remains after the 90% correction is a working market with a much smaller center of gravity. Ethereum's $15.3 million is a real floor, Courtyard's six million is real retail, and everything above that is either DeFi positions classified as collectibles or wash trading. Note the market context cuts the other way too: with Bitcoin near $81,311, Ether around $2,647 and total crypto capitalization at $2.79 trillion per CoinGecko, the risk appetite clearly returned to fungibles first. If next week's address surge turns into transaction and dollar growth, this is the bottom of a rebuild. If dollars keep falling while wallets pile in, it is a market farming points, not buying art.
