(70% equity (1 global ETF+1 Swiss ETF) + 30% cash/bonds)
It makes a lot of sense to reduce the number of holdings if your strategy allows for it.
My plan is to keep 3-5 years' expenses in cash to weather the sequence of return risk, and cover expenses from investments the good years, topped up for the next 5 years by some very part time self-employment. I then access my vested interest accounts and count on a 3.2% withdrawal rate from total capital.
It makes a lot of sense to reduce the number of holdings if your strategy allows for it.
I currently do not hold bonds, but I am in the accumulation phase and still have several years to go. If I were in your position, I would also opt for a 70/30 split (though if I were limiting myself to only two asset classes, I would actually choose to include many more). The worst-case scenario for you right now would be a crisis that jeopardizes your ability to reach FIRE.
However, holding a large amount of cash worsens your portfolio's Safe Withdrawal Rate (SWR), even if it provides a greater sense of security. To improve the SWR, you should primarily focus on the Sharpe ratio. Considering only equities and bonds, the best Sharpe ratio is achieved with a 60/40 allocation, using bond ETFs with a 7–10 year maturity from nations with very high credit ratings (preferably AAA).
Below, I have included a backtest starting from 1970, which offers a solid historical perspective. I have modeled your portfolio both with and without bonds; observe the comparison: the returns are very similar, but the portfolio with bonds exhibits significantly less volatility, with a Maximum Drawdown of -33% during the dot-com crisis and a recovery duration of 5.3 years. This is the significant advantage bonds offer, far surpassing that of cash. Unfortunately, the website is Italian-based and denominated in Euros, so it does not include Swiss bond ETFs.
Backtest UCITS ETF portfolios, track investments and plan financial independence.
www.backtes.to