Crypto market cap smashes through $4t, what altcoins are surging?

Crypto market capitalization broke the $4 trillion mark on July 18, 2025, setting a new all-time high and signaling the strongest wave of capital this industry has ever seen. The surge isn’t isolated and comes amid a market-wide rally that has pushed several assets to new highs.

At the forefront are the two largest crypto assets. Bitcoin (BTC), holding near $119,000 at the time of writing, remains the dominant force of the crypto market cap, holding a lion’s share of roughly 60% at $2.4 trillion. 

While the crypto giant’s gains have been modest over the past day, its surge in the past week has been strong, seeing it recently break above $123,000 all-time high.

Ethereum (ETH) has posted even bigger gains, jumping 9% in the past 24 hours to reclaim $3,600 for the first time in seven months. The second-largest crypto is up about 41% this month, fueled by record ETF inflows of over $1.7 billion this week.

But the biggest moves are coming from altcoins.

XRP

Ripple’s XRP (XRP) sits as one of the day’s largest gainers, hitting a new all-time high of $3.66 in a 10% climb in the past day. XRP has been in a positive trend pattern over the past week, climbing 33% 60% over the past day and week, respectively. 

The token’s current levels mark a strong recovery from several months in the red and about 7.6% above its 2018 record of $3.40. Its market cap has crossed into the $200 billion milestone, also fuled by a 13% surge in open interest, according to Coinglass data.

Beyond the broader market rally, XRP’s surge is driven by speculation about major partnership deals and mounting chatter surrounding ETF proposals, as anticipation for regulatory approval in the coming months grows.

Uniswap

Even surpassing XRP is Uniswap (UNI) with 17% in gains, trading at $10.71 at press time. Today’s surge marks a clean break above its $9 resistance level, boosted by a 64% jump in trading volume.

The double-digit surge is fueled by renewed investor interest in the DeFi platform, bringing its gains over the month to roughly 45%. Whale holdings of UNI have increased by 67% over the past month, and open interest in the token is surging alongside price action, up roughly 22.5%

Uniswap’s rally is also fueled by the ongoing rebound in Ethereum, which has reignited confidence across DeFi, drawing liquidity and activity back into the ecosystem. While the token still sits significantly below its all-time high of $44, investor optimism is high for the current rally to pave the way for further upside..

Dogecoin

Leading the memecoin sector, Dogecoin has posted about 10% gains, now trading at $0.23 after breaking the $0.20 resistance. The rally comes as trading volume surged 64% in the past day, reaching $5.7 billion.

A key driver of the memecoin’s rise is a surge in whale accumulation, with over 1 billion DOGE scooped up by large holders in recent weeks. Open interest jumped 25% in the last 24 hours, reclaiming levels last seen in early February.

Social sentiment is also heating up, with 70% of Binance derivatives traders taking long positions on DOGE, according to Long/Short Ratio data. The latest uptick breaks its months‑long sluggish movement, and the memecoin is now forming a positive trend line that could propel it to new highs.

DOGE trades at $0.23 at the time of writing, and market watchers are eyeing $0.30 as the price target if volume holds.