It’s always a challenging question, but the current market volatility brings it particularly into focus. Normally, like many advisors, you may prefer calendar rebalancing—quarterly, semiannually, or annually. And, whatever the time frame you set, it’s likely that you’ve recently addressed the need for rebalancing during your end-of-year portfolio reviews. But now, given the significance of the economic downturn and widespread uncertainty regarding where the markets will go in coming months, what should you do?