Bitcoin vs Stocks: Starting at Age 31
Three portfolios, same savings: your diversified mix, 100% Bitcoin (Power Law), and a traditional 60/40.
Assumes: starting age 31 · retirement at 60 · starting portfolio $80K ($50K stocks, $20K bonds, $10K BTC) · saving $20K/yr ($5K each: stocks, bonds, BTC, other) · retirement expenses $60K/yr
Your Mix (stocks + bonds + BTC)
$11.3M
100% Bitcoin
$57.1M
Traditional 60/40
$2.6M
Portfolio Comparison
Decade-by-Decade Breakdown
| Age | Your Mix | 100% BTC | 60/40 Trad | Winner |
|---|---|---|---|---|
| 31 | $80K | $80K | $80K | 100% BTC |
| 41 | $813K | $2.8M | $456K | 100% BTC |
| 51 | $3.7M | $16.9M | $1.3M | 100% BTC |
| 61 | $12.4M | $64.2M | $2.6M | 100% BTC |
| 71 | $31.5M | $184.4M | $2.3M | 100% BTC |
| 81 | $73.4M | $449.8M | $445K | 100% BTC |
| 85 | $100.0M | $620.1M | $0 | 100% BTC |
Bitcoin vs Stocks for Retirement
Under the Power Law model, a 100% Bitcoin portfolio would be 21.8× larger than a traditional 60/40 allocation by age 60. However, this comes with significantly higher volatility and concentration risk.
Your diversified mix (stocks, bonds, and Bitcoin) offers a middle ground — capturing some of Bitcoin's upside while maintaining exposure to traditional assets. At $11.3M, it outperforms the traditional 60/40 ($2.6M) while being less volatile than a pure Bitcoin portfolio.
The decade-by-decade table shows how these strategies diverge over time. In early years, the differences are modest. But compounding over 29 years creates dramatic separation, especially for Bitcoin-heavy allocations.
This is not financial advice. Actual returns will vary. Bitcoin is highly volatile.
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