Keeps equal 25% slices in Bitcoin, Ethereum, SPY (S&P 500), and Apple, rebalancing daily. Sells some of what just rose and buys what fell. Simple and disciplined, but high volatility, trading/tax costs, and concentration in tech and crypto.

Each day the portfolio holds 25% in four assets and rebalances back to those targets: Bitcoin (BTC), Ethereum (ETH), SPY (a fund that mirrors the S&P 500 stock index), and Apple stock (AAPL). If one grows past 25%, it trims it; if one drops below 25%, it buys more. This builds a steady “buy low, sell high” habit across crypto and U.S. stocks, but causes frequent trades, taxes, and big exposure to tech and crypto swings.

Out-of-sample: ~46.7% annualized return, Sharpe 1.22, Calmar 1.82 versus SPY’s ~23.7% return. A simple rule-based 4-asset mix (BTC, ETH, SPY, AAPL) aims for higher growth with disciplined risk, despite higher drawdowns.