Best Altcoins to Buy Today, October 28 – HBAR, SEI, ADA

Highlights:

• HBAR, SEI, and ADA are stealing the spotlight as the best altcoins to buy today, driven by strong momentum.
• HBAR jumps 16% with the new ETF launch, sparking heavy institutional buzz across the market.
• Cardano’s whale accumulation hints at steady confidence, while SEI eyes a key breakout above $0.30.

The crypto market has faced a setback today despite kicking off the week on a positive note. The overall market cap and trading volume have dropped to $3.87 trillion and $150 billion, respectively. However, the fear and greed index has climbed from the fear zone and currently hovers at 42 levels, indicating neutral sentiment. In this article, we will discuss the best altcoins to buy today, such as HBAR, SEI, and ADA.

Best Altcoins to Buy Today

1. Hedera (HBAR)

Hedera’s price has seen a resurgence today, rallying by over 16% over the last 24 hours. This bullish momentum has elevated the weekly gains to 25%. The price has climbed above the $0.200 region, levels last seen in early October. Additionally, its trading volume has increased by almost 300% to reach $760 million.

The recent upswing in HBAR has been attributed to the news of the Canary HBAR ETF launching to the market under the ticker HBR. Trading commences on October 28, 2025, on Nasdaq, with assets held in custody at BitGo and Coinbase. Its pricing will be fueled by CoinDesk Indices.

Time for an HBAR ETF? 🤔 pic.twitter.com/FHxRqHGXBI

— Hedera Foundation (@HederaFndn) October 27, 2025

Additionally, crypto analyst ZAYK Charts pointed to a possible move of a 58% breakout. HBAR broke out of a downward channel, triggering a powerful upward movement. On the verge of institutional interest, HBAR is emerging as one of the best altcoins to buy today, according to both fundamental and technical indications.

2. SEI

SEI price movement mirrors the broad market downturn as it drops by 3% on the daily chart. Currently, the market cap and trading volume have declined by $1.25 billion and $82 million, respectively. Support and resistance levels for SEI are located at $0.17 and $0.30.

SEI is trading in the range of $0.20 and has experienced a long-term downward correction since its high in early 2024. A downward resistance line has topped previous rallies, such as critical rejections in March and November 2024. Recently, SEI has reached the lowest point of $0.2035 and is testing the lower limit before it may begin to move up.

All eyes on $0.30. A breakout here could send $SEI flying to $0.70! pic.twitter.com/WSgxbrw21f

— Ali (@ali_charts) October 28, 2025

According to crypto analyst Ali Martinez, the level of importance is at $0.30. Any breakout at this point would be at the $0.70 point, which is represented by 0.618 Fibonacci. The technical setup of SEI puts it on the radar of investors searching for the best altcoins to buy today.

3. Cardano (ADA)

Cardano is trading at $0.66, having declined by 2% in the last 24 hours. The altcoin began the week on a positive note, surging to $0.69 on Monday, but has faced a slight pullback. Additionally, ADA is up 4% on the weekly chart, despite a 14% monthly decline.

During recent downturns, Cardano has continued to be strong, with the number of large wallets growing. Santiment data showed one to ten million ADA whale additions in 100 million tokens since October 15. Smaller investors reduced positions, indicating a change in the market rotation towards bigger hands.

Moreover, crypto analyst Charting Guy has noted a steady higher-high and a higher-low, suggesting a robust long-term development. The analysis indicates a possible breakout above the falling channel, which has a resistance of approximately $1.10-$1.30. ADA is one of the best altcoins to buy today, provided that the price remains above $0.60.