Forecasting the Volatility of Altcoins

We put forward a model implementation for unbiased forecasts of cryptocurrency volatility. The model provides a familiar breakdown between common and instrument-specific sources of variance. Within the common factors, we attempt to build a digital asset-specific multi-factor framework. We also incorporate an autoregressive adjustment to account for heteroskedasticity in daily returns. The model performs well over its short history and can be used for construction of diversified token portfolios.

Cryptocurrency returns exhibit a high degree of correlation to one another and there are large differences in the level of volatility of the different tokens. These differences are mostly persistent over time.

We estimate a model that decomposes the covariance matrix of the top 200 tokens between common and residual variance in the form:

Annualized Volatility of Daily Returns

Covariance Matrix of Daily Returns

After accounting for systemic risk, there are still observable co-movements in token returns. The most evident is related to tokens with common “use cases” – or equivalent to “sectors” in the stock market.We classified cryptocurrencies into a fundamental taxonomy that grouped tokens by value driver. From that classification we constructed several sector factors and retained the ones that displayed then most robust data quality for a sufficiently long history.These common factors together account for roughly 50% of token variance.

Sector Returns (Net of Benchmark)

Benchmark Constituents

To capture a measure of systemic risk in crypto market, we construct a quarterly rebalanced index of market cap weighted token. This approach recognizes the large importance to Bitcoin as a proxy for systemic risk in crypto, while still capturing diversification benefits of allocating to Altcoins. The index most closely resembles the Bloomberg Galaxy Crypto Index.

Market Benchmark Return

QIS Risk provides model parameters via an easy-to-use API. We also make this data available as flat file for rapid backtesting

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