YA Finance has special signs and symbols used with numeric data in order to represent the high and low of a particular share or a stock in a company. YA represents it as for example, Tesla Motors-216.97 +3.15 changes to +3.22, so it represents up and down every few seconds in terms of stock trading. By this people make sure they buy shares when they are low and sell them when their value goes high in the market in order to make a profit.