
The cryptocurrency market experienced a volatile trading day on September 15. Mantle (MNT) and Pump.fun (PUMP) led the gainers, while Four (FORM) and Bonk (BONK) saw steep losses. According to data from CoinMarketCap, the total global crypto market capitalization fell by 1.09%, settling at $4 trillion, even as trading activity surged by 24.93% to $163.82 billion.
Bitcoin (BTC), the top cryptocurrency by market cap, traded at $115,044, down 0.40% over the last 24 hours. Meanwhile, Ethereum (ETH) dipped 1.83% to $4,530.06.
Mantle (MNT) led the list of gainers, climbing 5.95% to reach $1.71, with a trading volume of $524.4 million. Then Pump.fun (PUMP), saw the second-highest gain, rising 5.42% to $0.008191 on the back of a $1.31 billion trading volume and recent reports of its native token’s buyback program.
In addition, Monero (XMR) rose by 4.48%, hitting $301.97, supported by a daily volume of $148.64 million. Flare (FLR) made a modest gain of 2.20%, trading at $0.0234, while Story (IP) increased by 1.17% to $9.75.
On the losing side, Four (FORM) saw the highest drop of 8.07%, landing at $2.14 with a moderate trading volume of $61.52 million.
Bonk (BONK) was the second-highest loser with 7.31% to reach a price of $0.000023. Dogecoin (DOGE) also slipped by 7.11%, now sitting at $0.2643, even though it led in trading volume at $6.42 billion.
Additionally, Fartcoin (FARTCOIN) fell 6.95% to $0.8198, while Pepe (PEPE) dropped 5.88% to $0.00001078 closing the top losing tokens today.
The overall market sentiment remained neutral today, as the Fear and Greed Index held at a neutral 51 position. Bitcoin continued to lead with 57.2%, followed by Ethereum with 13.7% and other cryptocurrencies with 29.1%.
Mantle and Pump.fun are climbing higher, while Dogecoin and others are losing value, showing a shifting market with growing ups and downs. The Altcoin Season Index soared to 71, a strong signal that traders and investors are shifting their focus to altcoins.
This trend is further supported by the crypto ETF market, which saw $1.04 billion in net inflows on September 12, following earlier outflows in the month.
There was $1.04 trillion in open interest for perpetual contracts, indicating a high level of leveraged trading activity. These open positions often contribute to market volatility and sharp price swings.

