Key Takeaways
- • Of the top 100 altcoins by market capitalization as of November 10, 2021, 81 had fallen at least 70% and 64 were down at least 90% by late 2026, with a median decline of 94.5%, according to CoinMarketCap research prepared for Forbes.
- • Only seven of the top 100 altcoins were worth more than their November 2021 levels, underscoring that strong technology and established teams did not protect token value.
- • Token supply dilution amplified losses for some projects: median circulating supply rose 49% among the 81 steep losers, with Filecoin's supply up 585% while FIL fell 98.3%.
- • CoinMarketCap calculated that 77 of the 81 tokens would still have lost at least 70% even holding supply constant at 2021 levels, meaning declining market valuations drove most of the collapse.
- • Tokenomics, including whether network usage creates real token demand, determines whether a blockchain's success translates into token returns; buybacks totaling over $1.4 billion in 2025 (per CoinGecko) show projects are trying to close that gap with mixed results.
Summary
Some of the most promising cryptocurrencies of 2021, backed by established teams and sophisticated technology, have lost nearly all their value. According to CoinMarketCap research prepared for Forbes, of the top 100 altcoins in November 2021, 81 had fallen at least 70% from their November 2021 levels, while 64 were down at least 90%. The median decline was 94.5%. The study tracked the largest altcoins by market capitalization on November 10, 2021, near the market peak, excluding Bitcoin, stablecoins and wrapped tokens. Nearly five years later, only seven were worth more than at the start of the period.
The article argues that technological merit does not reliably translate into investment returns. Unlike equity holders, who own a legal claim on company earnings, many token holders receive governance rights or transaction utility without a share of profits. A blockchain can attract users and generate fees without creating corresponding demand for its token, so investors need to assess tokenomics, including how tokens are issued, distributed and used.
Tokenomics failures compounded losses for some projects. Filecoin distributed additional tokens through mining rewards and vesting schedules, and its circulating supply rose 585% between November 2021 and October 2026 while FIL fell 98.3%. Polkadot's supply increased 73% while DOT fell 97.5%. Among the 81 steep losers, median circulating supply rose 49% while median market capitalization declined 94.6%. Alice Liu, head of research at CoinMarketCap, said in a written response: "Dilution contributed, but it does not fully explain the losses."
The economic link between a chain and its token varies widely. On Arbitrum, users pay fees in Ether rather than ARB, which provides governance rights without automatically entitling holders to network income. Per CoinGecko, 28 major projects spent more than $1.4 billion buying back tokens in 2025, with ten accounting for 92% of the total. OKB surged 170% in August 2025 after an announcement that its supply would be sharply reduced, and Hyperliquid directs most trading-fee revenue toward HYPE buybacks, outperforming the broader market this year. Other projects continued to lose value despite similar programs.
The article attributes part of the decline to shifting investor attention. Matt Cepulis, founder and CEO of 3betmedia, said retail liquidity rotates across narratives such as memecoins, AI agents and prediction markets, and that established infrastructure tokens "lose their narrative premium and nothing replaces it." Andreas Brekken, founder of SideShift.ai, noted that "a new chain is essentially a startup, and most will fail to find product-market fit before running out of money and attention." The combined market capitalization of the original 100 altcoins declined by nearly half over five years. The results suggest that identifying promising technology was only the first of several decisions, with token selection and valuation equally critical.
The article argues that technological merit does not reliably translate into investment returns. Unlike equity holders, who own a legal claim on company earnings, many token holders receive governance rights or transaction utility without a share of profits. A blockchain can attract users and generate fees without creating corresponding demand for its token, so investors need to assess tokenomics, including how tokens are issued, distributed and used.
Tokenomics failures compounded losses for some projects. Filecoin distributed additional tokens through mining rewards and vesting schedules, and its circulating supply rose 585% between November 2021 and October 2026 while FIL fell 98.3%. Polkadot's supply increased 73% while DOT fell 97.5%. Among the 81 steep losers, median circulating supply rose 49% while median market capitalization declined 94.6%. Alice Liu, head of research at CoinMarketCap, said in a written response: "Dilution contributed, but it does not fully explain the losses."
The economic link between a chain and its token varies widely. On Arbitrum, users pay fees in Ether rather than ARB, which provides governance rights without automatically entitling holders to network income. Per CoinGecko, 28 major projects spent more than $1.4 billion buying back tokens in 2025, with ten accounting for 92% of the total. OKB surged 170% in August 2025 after an announcement that its supply would be sharply reduced, and Hyperliquid directs most trading-fee revenue toward HYPE buybacks, outperforming the broader market this year. Other projects continued to lose value despite similar programs.
The article attributes part of the decline to shifting investor attention. Matt Cepulis, founder and CEO of 3betmedia, said retail liquidity rotates across narratives such as memecoins, AI agents and prediction markets, and that established infrastructure tokens "lose their narrative premium and nothing replaces it." Andreas Brekken, founder of SideShift.ai, noted that "a new chain is essentially a startup, and most will fail to find product-market fit before running out of money and attention." The combined market capitalization of the original 100 altcoins declined by nearly half over five years. The results suggest that identifying promising technology was only the first of several decisions, with token selection and valuation equally critical.
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