Yes — we recommend maintaining a small cash buffer in your broker account before executing or rebalancing.

This helps manage:

  • Rounding adjustments in order values
  • Brokerage fees and taxes
  • Minor price movements between order placement and execution
  • Buy and sell overlap during rebalancing — since both buy and sell orders are placed together, the proceeds from sell orders aren’t instantly available. A cash buffer ensures buy orders can still go through smoothly.

If there’s insufficient balance, some trades may fail or partially execute.