i am expert mentor and designer in designing supplydemand method chart my idea is force behind changes in price is supply and demand. When there are more buyers than sellers, the market price will move up. Conversely, when there are more sellers than buyers, the market price will move down. When buyers and sellers are more or less even, the market will range. These simple concepts are very powerful and allow us to analyze naked charts in order to determine where the price is likely to go.