April 2025 saw major altcoins like SUI, HYPE, and SOL achieve double-digit growth. With institutional moves and increasing on-chain activity driving momentum, here’s what to expect from the best-performing altcoins in May 2025.

The cryptocurrency market closed April 2025 on a high note, with some altcoins in the top 20 delivering excellent monthly returns. From ETF filings to ecosystem growth, projects like Sui and Hyperliquid have attracted investor attention.

As May begins, all eyes are on whether these tokens can maintain their growth momentum or face corrections. Let’s take a closer look at the 5 highest-performing altcoins from April 2025 and what the next month could bring for each.

🥇 Sui (SUI): Riding the ETF Wave

April Performance: +61.56%

Market Capitalization Ranking: #11

Sui led the altcoin group in April after 21Shares filed for the first spot SUI ETF with the US SEC. This bold move not only legitimized the Layer 1 blockchain in the eyes of institutions but also sparked speculative interest among traders. Sui's growing ecosystem and active developer base have further boosted its appeal.

May 2025 Outlook:

SUI could continue to rise higher, especially if optimism surrounding the ETF persists. However, after such a strong monthly rally, the token may undergo a brief consolidation period before rising again.

🥈 Hyperliquid (HYPE): The New Favorite Coin of DeFi Traders

April Performance: +55.43%

Market Capitalization Ranking: #20

Hyperliquid, an up-and-coming star in the decentralized futures market, gained significant traction in April. Its innovative model as a decentralized derivatives exchange has attracted users seeking alternatives to centralized platforms. The increase in DeFi trading volume also played a role in HYPE's price surge.

May 2025 Outlook:

HYPE remains the center of attention, and if on-chain trading volumes remain high, the token could climb higher. However, given its high volatility, expect strong pullbacks and profit-taking phases.

🥉 Solana (SOL): Back in the Game

April Performance: +20.96%

Market Capitalization Ranking: #6

Solana made a strong recovery in April amid renewed interest in meme coins and NFT activity on its high-speed chain. Discussions about a potential ETF based on Solana have also sparked optimism. This ecosystem has continued to grow despite previous setbacks.

May 2025 Outlook:

SOL may trade sideways or see slight increases at the beginning of the month, but any specific news about ETF approval or major launches could trigger a breakout.

🏅 Bitcoin Cash (BCH): A Comeback Asset

April Performance: +19.67%

Market Capitalization Ranking: #19

Bitcoin Cash quietly rose in April, attracting attention from investors looking for faster and cheaper transactions. It benefited from a rotation into older, undervalued coins and the increasingly compelling narrative surrounding digital currency utility.

May 2025 Outlook:

Without strong ecosystem development, BCH's growth momentum could weaken. However, it can still benefit from retail-driven trades and speculative capital rotation.

🏅 Hedera (HBAR): A Pioneer in Business Tokenization

April Performance: +15.53%

Market Capitalization Ranking: #17

HBAR steadily increased in April thanks to strategic partnerships with global companies like IBM, Dell, and initiatives on carbon credit tokenization. The focus on real-world use cases continues to bolster its fundamentals.

May 2025 Outlook:

If Hedera secures more enterprise integrations or expands token use cases, HBAR could see sustainable growth in the long term leading up to May and beyond.

May 2025 Outlook: Momentum or Correction?

April was a strong month for altcoins, but the current question is whether these price increases can hold. With ETF developments, ecosystem upgrades, and DeFi usage driving narratives, top altcoins are poised for the potential to continue — but volatility remains high. Investors should monitor macroeconomic changes and news catalysts to get ahead into May 2025.