[Bitcoin On-Chain NFT Trading Volume Drops to $43.81 Million in September, Hitting a Five-Month Low] Cryptoslam data shows that in September 2025, Bitcoin on-chain NFT trading volume was approximately $43.81 million, marking the lowest monthly trading volume since May 2023. Meanwhile, Ethereum on-chain NFT trading volume recorded approximately $176 million in September, becoming the lowest monthly trading volume of the third quarter of 2025. This reflects a significant cooling in overall trading activity in the recent NFT market.