Beyond bitcoin: other cryptos can play a role in your portfolio

Altcoins have evolved from niche assets into essential components of diversified crypto Altcoins have evolved from niche, speculative bets into essential components of diversified crypto portfolios. In Germany in particular, investors are showing growing interest in exchange-traded products (ETPs) that provide exposure beyond Bitcoin.

We remain strong supporters of Bitcoin. It continues to serve as the foundation of digital asset exposure, the anchor that institutions and individuals alike turn to first. But adding altcoins strategically can enhance returns without proportionally increasing risks, provided allocations are managed with discipline and regular rebalancing.

For instance, over the past five years, SOL (Solana’s native token) outperformed Bitcoin by significant margins (over 500% relative to Bitcoin). Cryptocurrencies other than Bitcoin (altcoins) should not be overlooked. Indeed, they have a tendency to follow Bitcoin’s trajectory: when the leading cryptocurrency goes well, the rest of the market tends to go higher but when Bitcoin declines, altcoins usually suffer even more. Therefore, their potential within a portfolio can only be realized through disciplined management.

Best practice allocation: BTC + selected altcoins

The study provides an example mix that balances performance with controlled drawdowns (allocation for illustration only and does not constitute investment advice):

This allocation reflects several considerations:

• Bitcoin as the anchor: It remains the most liquid and institutionally adopted digital asset. Bitcoin is the most established and widely adopted digital asset, and for this reason, it is often viewed as the anchor of a crypto allocation. Only a few altcoins have outperformed Bitcoin over time.

• Ethereum for smart contract dominance: Its large ecosystem of decentralized applications justifies a significant allocation. As the second-largest digital asset, Ethereum also has a proven record of 100% uptime and is the most widely supported crypto platform among institutions and developers.

• Solana for speed and scalability: High throughput and low fees make it attractive for stablecoin settlements and DeFi. Despite some challenges in its early days, Solana has since managed to recover and is now widely adopted by institutions and developers.

• XRP for cross-border efficiency: With a strong use case in remittances and payments, XRP remains one of the oldest cryptocurrencies and has built a significant global community of supporters. 

This balanced mix reflects a philosophy: Bitcoin as the anchor, with carefully selected altcoins that each contribute specific strengths — programmability, scalability, and payments.

The role of diversification and rebalancing

In our model, a 5% crypto allocation was added to a traditional 60% DAX / 40% bond portfolio. To make room, equities were reduced to 58% and bonds to 37%. The back-tested results, based on the past five years, highlight two principles:

1. Volatility–return trade-off: Higher volatility can increase returns, but without rebalancing, portfolios are exposed to severe drawdowns. Adding crypto assets without rebalancing creates periods of steep losses that require disproportionately large gains to recover.

   

2. Rebalancing as risk control: The charts below demonstrate that rebalancing is essential. Regular rebalancing prevents losses from compounding while allowing investors to capture the upside of volatility. This is particularly relevant for altcoins, which tend to swing more dramatically than Bitcoin.

   

Performance impact of crypto allocations

The impact of adding a 5% allocation of crypto to a traditional 60% DAX / 40% Bond portfolio is clearly visible, as shown on our asset below. In this model, the equities allocation is lowered at 56% and the bond allocation at 37%.

• Sharpe ratio improvement: Portfolios with a crypto allocation, especially diversified beyond BTC, show higher risk-adjusted returns.

• Performance enhancement: Even modest crypto exposure significantly boosts long-term portfolio growth.

• Volatility trade-off: Adding altcoins does increase volatility, but the effect is mitigated by annual rebalancing.

• Information ratio gains: More balanced exposure (BTC + ETH + altcoins) improves efficiency compared to a BTC-only strategy.

Strategic recommendations

1. Don’t be overexposed to crypto: a 5% allocation, split across BTC, ETH, SOL, and XRP, already produced outperformance versus a traditional portfolio.

2. Use altcoins to complement, not replace, Bitcoin: BTC should remain the majority position, acting as the stabilizer.

3. Limit altcoin allocation to 25–35% of crypto exposure: balanced across ETH, SOL, and XRP, altcoins diversify exposure to growth, scalability, and payments.

4. Commit to regular rebalancing: annual rebalancing is sufficient to capture performance while keeping drawdowns under control.

5. Adjust for risk appetite: conservative investors may lean 70% BTC, 20% ETH, 10% altcoins. More aggressive investors might tilt heavier toward ETH and SOL.

Don’t overlook altcoins

Altcoins can play a meaningful role in a diversified allocation, but their higher volatility means they require caution and discipline. Managed through structured, rules-based allocations and regular rebalancing, they can deliver stronger performance and improved risk-adjusted returns compared to Bitcoin alone.

For German investors and beyond, altcoin exposure is increasingly accessible via ETPs, which integrate seamlessly into traditional portfolios. As the market matures, combining Bitcoin with carefully selected altcoins could represent not just diversification, but participation in the infrastructure of tomorrow’s financial system.