Delphi Digital ran a backtest of every possible 5-year holding window for Bitcoin, Ethereum, and Solana using daily price data dating back to May 2016, with ETH and SOL returns including staking yields. The result: 5-year entries into the three majors have been almost universally profitable.
Why it matters
Bitcoin recorded just 11 negative 5-year windows out of the entire sample, with the worst drawdown sitting around -13%. Ethereum and Solana posted zero negative 5-year periods over the same span. The median 5-year return for BTC was over 8x; for ETH, nearly 13x. For scale, Nvidia's roughly 14x return over the past five years lines up with the third-quartile historical 5-year return for both BTC and ETH — a useful reality check for anyone framing crypto returns as exotic.
Market impact
The read is structural, not directional: across nearly a decade of rolling windows, time-in-market has been a far more reliable edge than entry-timing for the three largest crypto assets. The 11 BTC losing windows cluster around cycle tops where capital was deployed in the final leg of a blow-off move, suggesting entry valuation still matters — but the floor on a 5-year horizon has been remarkably shallow. For allocators framing BTC and ETH against long-duration tech comps, the backtest pushes back hard on the "crypto is uniquely volatile" narrative when measured over the holding period most institutional mandates actually run.
Frequently asked questions
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What did Delphi Digital's 5-year backtest actually measure?
Delphi tested every possible 5-year holding window for Bitcoin, Ethereum, and Solana using daily price data going back to May 2016, with ETH and SOL returns including staking yields. The point was to map how often a random 5-year entry ended in profit or loss.
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How many losing 5-year windows did each asset record?
Bitcoin logged 11 negative 5-year windows out of the full sample, with the worst drawdown around -13%. Ethereum and Solana recorded zero negative 5-year periods across the same window set.
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What were the median 5-year returns?
The median 5-year return for Bitcoin was over 8x, and for Ethereum it was nearly 13x. Solana's median was not disclosed in the seed but was grouped with ETH and SOL as having no losing windows.
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How does this compare to traditional tech stocks?
Delphi pointed to Nvidia's roughly 14x return over the past five years as a benchmark, noting it lines up with the third-quartile historical 5-year return for both BTC and ETH. The framing pushes back on the idea that crypto's long-horizon returns are exotic relative to mega-cap tech.
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What is the practical takeaway for investors?
Time-in-market has historically been a far more reliable edge than entry-timing across the three largest crypto assets. The 11 losing BTC windows cluster around cycle tops, so entry valuation still matters — but the floor on a 5-year horizon has been shallow.
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