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Dollar Cost Averaging Bitcoin — The Evidence in 2026
Dollar-cost averaging (DCA) — investing a fixed amount at regular intervals regardless of price — is the most commonly recommended strategy for retail Bitcoin investors. But does the evidence actually support it? After analysing 8 years of Bitcoin price data, here’s the honest assessment.
What the Data Shows
Backtesting weekly £100 DCA into Bitcoin from January 2017 to January 2025: total invested £41,600, portfolio value at end: approximately £185,000-310,000 depending on the exit point. Annualised return: approximately 52-67%. However, the path included drawdowns of 80%+ (2018, 2022) — psychologically brutal even for experienced investors.
DCA vs Lump Sum vs Value Averaging
Academic research (Vanguard 2012, covering traditional assets) shows lump-sum investing outperforms DCA approximately two-thirds of the time in bull markets. For Bitcoin specifically, given its extreme volatility, DCA reduces the risk of catastrophic timing (buying at the absolute top) while capturing long-term upside. Value averaging (adjusting purchase amounts based on portfolio performance) shows marginally better results but requires more active management.
Practical DCA for UK Investors
Use a regulated UK exchange (Kraken, Coinbase) with recurring buy functionality. Weekly over monthly shows marginally smoother entry in volatile assets. Consider tax implications — each DCA purchase is a separate acquisition cost for HMRC CGT calculations. Software like Koinly tracks these automatically.
⚠️ Not financial advice. Past performance of any asset, including Bitcoin, does not guarantee future returns. Only invest what you can afford to lose entirely.
