Coinbase Adds HBAR, MANTLE, VET, FLR, SEI, and IMX to Its Coinbase 50 Index

• Coinbase added six new assets to its Coinbase 50 Index with the removal of six others, as part of its quarterly rebalance.
• The newly included tokens had mixed market reactions, with IMX and VET gaining and others declining.

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Coinbase has added six new assets to its Coinbase 50 Index, the benchmark that tracks the largest and most liquid digital assets on the platform.  The new quarterly rebalancing introduces Hedera, Mantle, VeChain, Immutable, Sei, and Flare, recognizing the increased activity in tokenization, gaming, real-world asset integrations, and high-performance trading ecosystems.

The reshuffle eliminates SKL, AKT, LPT, SNX, HNT, and CVX, following standard index methodology linked to the market size and liquidity. The Coinbase 50 Index, launched in November 2024, is periodically updated in response to market changes.

Rebalance Points To Growing Demand Across Key Ecosystems

The new additions reflect the changing composition of the market. Hedera is entering the benchmark with increasing demand for tokenization by enterprises, and Mantle comes with its modular Ethereum-focused scaling architecture. 

VeChain reinforces the supply chain side with real-world integrations, whereas Immutable has the tried and tested gaming and NFT infrastructure linked with Ethereum. Sei offers a trading-optimized layer one based on speed. Flare, on the other hand, is expanding the cross-chain smart-contract segment with functionality intended for ecosystems like XRP.

Coinbase Additions Trigger Mixed Performance Across New Assets

Following the announcement, price action across the six additions showed varied momentum:

Flare (FLR) was trading around $0.0132, down 4% with a persistent intraday decline, accompanied by a 22% increase in volume.  In addition, SEI fell from $0.126 to $0.122, a decrease of around 3%, following a significant early decline. Every attempt at recovery loses momentum quickly, and volume trends point to lower participation by buyers.

Yet some additions do provide a more constructive picture. Immutable (IMX) posted rare strength, rising to $0.2842, up about 2.45%. Afternoon buying pushed higher highs despite lower overall volume, showing efficient accumulation.

VeChain (VET) rose to $0.01234, a 1.6% increase, with a notable mid-session breakout and rising volume. There was a brief retracement, but the token continued to hold most of its gains as accumulation occurred.

Mantle (MNT) was at around $0.971, which is down 1.4% and trading in a narrow range with lows. A 42% slump in volume suggested declining participation as opposed to a structural trend break. Hedera is not faring much better, trading near $0.1319 and falling around 1.8%. The volume continued to fade, reducing the recovery momentum.

The index update comes as Coinbase announces it is on track to hit a major milestone on the platform on December 17. The company sent out a brief message on X to people, informing them that it will be watching the future livestream when it goes live, which is scheduled for 2:00 p.m. PST. There is already a countdown timer on the firm’s events page. Coinbase has not announced what the upgrade is, calling it the “next phase” of its platform.

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