Analysts from Coinbullet have spotlighted five altcoins with significant growth potential for October 2025: Stellar (XLM), Chainlink (LINK), Hedera (HBAR), Quant (QNT), and Algorand (ALGO). These cryptocurrencies are recognized for their innovative technologies and increasing real-world applications. Stellar is praised for its efficient cross-border transaction capabilities and rising on-chain activity. Chainlink continues to expand its decentralized oracle services, enhancing developer adoption. Hedera is gaining momentum in the enterprise blockchain sector with its energy-efficient hashgraph consensus. Quant is noted for its leadership in blockchain interoperability through its Overledger technology. Algorand is advancing in the DeFi space with high-yield developments and rapid settlement features.