Altcoins Jump 20% as ETH ETFs Hit $2.18B Inflow, Signaling Altseason Start

The altcoin market is showing signs of an early season, with Ethereum (ETH), XRP and Solana (SOL) up 20%+ over the past week.

Written by: Arslan Butt • Tuesday, July 22, 2025 • 2 min read

Last updated: Tuesday, July 22, 2025

Quick overview

The altcoin market is experiencing an early season, with Ethereum, XRP, and Solana seeing gains of over 20% in the past week.
Bitcoin's dominance has decreased from 66% to 59%, indicating a shift of capital towards altcoins.
The Altseason Index has risen above 50 for the first time in seven months, signaling a strengthening altcoin market.
Ethereum's institutional acceptance has surged, with record inflows into Ethereum ETFs and increased interest from corporate treasuries.

The altcoin market is showing signs of an early season, with Ethereum (ETH), XRP and Solana (SOL) up 20%+ over the past week. While Bitcoin (BTC) is down 2%, major altcoins are getting all the attention.

Bitcoin’s dominance has dropped from 66% to 59%, which means capital is flowing into altcoins. According to Bitfinex analysts, when BTC stagnates but capital flows into altcoins, it’s a sign of an altcoin led market phase.

And the Altseason Index has broken above 50 for the first time since December. This index measures how altcoins perform relative to Bitcoin; above 50 means the altcoin market is getting stronger.

Key indicators for altcoin momentum:

BTC Dominance: 59% from 66%
Altseason Index: Above 50 for the first time in 7 months
Top altcoin gains (past week): ETH +21%, SOL +24%, XRP +19%

Ethereum ETFs Set New Inflow Record

Ethereum’s institutional acceptance was the key to last week’s altcoin rally. U.S. spot Ethereum exchange-traded funds (ETFs) saw a record $2.18 billion inflow, more than double the previous record of $908 million, according to SoSoValue.

This was mirrored in Ethereum futures markets. Coinglass data shows Ethereum’s Open Interest (OI) jumped from $40 billion to $57 billion in a week, a 42% increase. Rising OI means new capital is entering the derivatives market, often a sign of bullish positioning from traders.

It also follows President Trump signing the GENIUS bill, a pro-crypto regulatory framework that passed after a great week for digital assets. QCP Capital analysts believe this bill will benefit native tokens tied to Layer-1 networks, like ETH, SOL and ADA.

Institutional Support is Here

Another trend emerging is corporate treasuries getting interested in Ethereum and other Layer-1 tokens. QCP analysts say public companies are starting to allocate funds into Ethereum and other Layer-1 tokens, they view them like how some companies treat Bitcoin as a strategic reserve asset.If this keeps up and the SEC approves staking in Ethereum ETFs then altseason may already be here.

Institutional inflows, good legislation and strong charts = altcoin friendly market.

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ABOUT THE AUTHOR See More

Arslan Butt

Lead Markets Analyst – Multi-Asset (FX, Commodities, Crypto)

Arslan Butt serves as the Lead Commodities and Indices Analyst, bringing a wealth of expertise to the field. With an MBA in Behavioral Finance and active progress towards a Ph.D., Arslan possesses a deep understanding of market dynamics. His professional journey includes a significant role as a senior analyst at a leading brokerage firm, complementing his extensive experience as a market analyst and day trader. Adept in educating others, Arslan has a commendable track record as an instructor and public speaker. His incisive analyses, particularly within the realms of cryptocurrency and forex markets, are showcased across esteemed financial publications such as ForexCrunch, InsideBitcoins, and EconomyWatch, solidifying his reputation in the financial community.