This is important to understand. The monthly allocations are based on current market prices. So even if we do not make any change during the month due to the fact that all stocks do not move the same during the month allocations will change. This is because the portfolio is market price-weighted and not at cost. For example, if it was a two-stock portfolio that starts at 50% into each stock and one moves up 10% during a month and the other moves 10% down the allocations at the end of the month will be 60:40 instead of 50:50. You do not need to be bothered about it as your portfolio also changes the same way automatically
