A recent analysis by Swan, a leading Bitcoin-focused financial services firm, has unveiled a striking trend in the cryptocurrency market: the vast majority of alternative cryptocurrencies—commonly known as altcoins—experience severe and rapid depreciation when measured against Bitcoin (BTC). This growing body of evidence reinforces Bitcoin’s role not just as digital gold, but as the premier asset for long-term capital preservation in the volatile crypto landscape.
Bitcoin’s Dominance in Value Retention
Swan shared its findings in a widely discussed thread on X (formerly Twitter), delivering a sobering message to investors across the digital asset space.
“Altcoins don’t just underperform Bitcoin. They collapse against it.”
The study analyzed the performance of the top 300 altcoins over a five-year period, focusing specifically on how quickly each asset lost 90% of its value relative to Bitcoin after reaching its all-time high (ATH). The results were both consistent and alarming.
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The median altcoin reached a -90% drawdown within just 10 to 20 months of peaking. This rapid erosion of value highlights a systemic weakness in the altcoin ecosystem—one that affects not only obscure tokens but also well-established projects with significant market presence.
Fastest-Falling Altcoins
Some altcoins collapsed at an astonishing pace. According to Swan’s data, Terra (LUNA1), Ontology Gas (ONG), and Bitgert (BRISE) each lost 90% of their BTC-relative value in under two months. These cases reflect not just market corrections, but near-total disintegration of investor confidence and utility.
Even larger, more recognized altcoins were unable to avoid significant losses:
- Cardano (ADA) and XRP (XRP) took approximately 36 months to fall 90% from their peak.
- Litecoin (LTC) showed more resilience, requiring 69 months to reach the same level of decline.
- Monero (XMR) demonstrated the slowest depreciation, taking nearly six years to hit a -90% drawdown.
This hierarchy suggests that while some altcoins may offer temporary stability, none match Bitcoin’s endurance over time.
The Illusion of Altcoin Resilience
Swan’s research also examined 45 altcoins that have not yet reached a 90% decline against BTC. While these assets may appear resilient, the data tells a different story.
The average drawdown among this group stands at 76% from their respective peaks. Even the best performer in this cohort has lost 43% of its value relative to Bitcoin. This indicates that many so-called "surviving" altcoins are not thriving—they are simply in the early or middle stages of decline.
“Bitcoin remains the benchmark for capital preservation. These assets don’t hedge Bitcoin — they bleed against it.”
This statement underscores a critical insight: altcoins are not effective hedges or alternatives to Bitcoin. Instead, they consistently lose purchasing power when compared directly to BTC.
Core Keywords and Market Implications
The key themes emerging from this study—Bitcoin dominance, altcoin depreciation, capital preservation, cryptocurrency market cycles, BTC vs. altcoins, long-term investment strategy, market liquidity fragmentation, and survivorship bias—reveal deeper structural issues within the crypto ecosystem.
One major factor often overlooked is survivorship bias: the tendency for investors and media to focus only on successful altcoin projects while ignoring the thousands that fail silently. This creates a distorted perception that altcoins can regularly outperform BTC, when in reality, long-term outperformance is exceedingly rare.
John Haar, an executive at Swan, captured the sentiment succinctly:
“With performance like this, it’s astonishing that altcoins continue to exist. Then again, humans love gambling.”
This observation points to behavioral economics playing a central role in sustaining the altcoin market—driven more by speculation and hype than by fundamental value.
Why Altcoin Season May Be Over
For years, investors have anticipated the arrival of “altcoin season”—a period when altcoins outperform Bitcoin en masse. However, mounting evidence suggests this phenomenon may be fading—or even obsolete.
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The sheer volume of new tokens entering the market contributes significantly to this shift. According to CoinMarketCap, over 1.8 million new tokens were created in just one month. Yet, most lack real-world utility, transparent development teams, or sustainable economic models.
Recent data reveals that 89% of tokens listed on Binance in 2025 are trading below their listing price. This indicates that even exchange listings—a traditional signal of legitimacy—no longer guarantee success.
Moreover, the explosion in token supply has led to extreme fragmentation of market liquidity. Capital is spread thinner than ever, making it harder for individual projects to gain traction or sustain momentum.
As a result, many analysts now believe that a broad-based altcoin rally may never return. Instead, Bitcoin’s growing institutional adoption, regulatory clarity, and macroeconomic positioning continue to strengthen its dominance.
Frequently Asked Questions
Why do altcoins lose value against Bitcoin?
Altcoins often lack the network security, decentralization, scarcity, and widespread adoption that underpin Bitcoin’s value. When market sentiment shifts or volatility increases, investors flock to Bitcoin as a safer store of value, causing altcoins to depreciate rapidly in BTC terms.
Is there any chance for altcoins to outperform Bitcoin?
Historically, very few altcoins have managed sustained outperformance against Bitcoin over multi-year periods. While short-term rallies occur—often driven by speculation or hype—long-term data shows that such gains are typically reversed quickly.
What is survivorship bias in crypto investing?
Survivorship bias refers to focusing only on cryptocurrencies that have succeeded while ignoring those that failed. This creates an illusion that altcoins frequently generate high returns, when in reality, most projects fail within months of launch.
Does Bitcoin dominance affect altcoin performance?
Yes. When Bitcoin dominance rises—meaning BTC captures a larger share of total crypto market capitalization—altcoins tend to underperform. High dominance reflects investor preference for BTC during uncertain or bearish market conditions.
Can new blockchain projects still succeed?
While possible, success is increasingly rare. With over a million tokens created recently and intense competition for attention and capital, new projects must offer clear innovation, strong fundamentals, and long-term utility to stand out—and even then, survival is not guaranteed.
Should I invest in altcoins?
Investing in altcoins carries significantly higher risk than holding Bitcoin. They should only be considered by those with high risk tolerance and a deep understanding of blockchain technology and market dynamics. Diversification should never come at the expense of core portfolio stability.
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Final Thoughts: Rethinking Crypto Investment Strategy
The Swan study delivers a powerful message: Bitcoin remains unmatched in its ability to preserve wealth over time. While altcoins attract attention with promises of explosive growth, their historical performance tells a different story—one of rapid decline, fragility, and systemic underperformance.
As the market matures, investors are increasingly recognizing that true value lies not in chasing speculative gains, but in holding assets with proven resilience. In this light, Bitcoin isn’t just the leader—it’s becoming the foundation of rational crypto portfolio construction.
Whether or not another “altcoin season” emerges, one fact remains clear: for long-term investors seeking capital preservation in the digital asset space, Bitcoin continues to set the standard.