Top 3 Undervalued Altcoins to Watch in September 2026

With Bitcoin up more than 20% since last week, traders are rotating into altcoins for larger gains. Three particular tokens, Kaspa, Solana, and Hyperliquid, are drawing renewed attention from market observers heading into the fall trading season.

However, all three altcoins are at different distances from their all-time highs. Analyst outlooks broadly support the undervalued narrative for two of the three under constructive market conditions, though outcomes will depend heavily on Bitcoin’s path and overall risk appetite going forward. 

This article is not financial advice. Crypto markets are highly volatile, projected price ranges are scenario-based estimates rather than guarantees, and readers should conduct independent research before making any investment decision.

Kaspa (KAS)

Kaspa trades at $0.0282, up 1.34% over the past 24 hours, according to BeInCrypto data. The token remains approximately 87% below its all-time high of $0.20741, reached on August 1, 2024.

Analysts point to its near-complete supply issuance and recent network upgrades as reasons for optimism.

In an upward scenario, price could climb toward $0.035 to $0.045 if network activity expands and emissions pressure continues to ease.

In a bearish case, it could retreat to $0.022-$0.025 if broader market weakness returns or developer adoption slows.

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Solana (SOL)

Solana trades at $98.50, about 66% below its all-time high of $293.31, reached on January 19, 2025.

Observers cite tokenomics improvements, including potential cuts to inflation and stronger fee burns. Moreover, Solana hit a record $4.2 billion in on-chain transactions in July, up 13.5%, driven by the SOL rally and tokenized assets.

Two big time changes to $SOL economics are live for voting.One could cut Solana’s path to 1.5% terminal inflation from ~5.7 years to ~2.8.The other would introduce a fully burned fee based on requested resource usage and potentially increase $SOL value capture by multiples.…

— Ryan Watkins (@RyanWatkins_) August 24, 2026

Bullish projections suggest a move toward $130 to $180, or higher in stronger cycles, if institutional flows accelerate. On the downside, a risk-off environment could push the token back toward the $75 support levels.

Hyperliquid (HYPE)

Hyperliquid trades at $82.34, up roughly 40% over the past week. The token set a new all-time high of $83.27 on August 23, meaning it now trades just 1% below its record.

Market participants view the token as attractively priced relative to its strong perpetual trading revenue and expanding infrastructure, even as it nears record levels.

On the other hand, Trump’s August 19 remarks about bringing Hyperliquid legally into the US sent HYPE surging nearly 20% within 24 hours.

In a positive scenario, sustained volume growth and buyback mechanisms could push it toward $100-$150. A bearish outcome might see a pullback to $60-$70 amid profit-taking or a broader market correction.

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None of the projections in this article constitute financial advice or price guarantees.

Cryptocurrency remains a highly volatile asset class, and readers should independently verify current prices and conduct their own research, or consult a licensed financial advisor, before making any investment decisions based on this analysis.