Can I use an actively traded fund for the Permanent Portfolio instead of a broad based index fund?
No you can’t. You don’t want a fund manager making decisions to move between stocks, bonds, cash, commodities, etc. and disturbing the strategy. You must use a fund that is 100% invested in stocks at all times for the stock portion of the portfolio. The Permanent Portfolio holds assets that will protect you from big stock losses already. You don’t need a manager trying to out-guess the markets. This rule is not flexible. Do not break it.