i look at this share from the day it open and there is one thing i do not understand is why do traders trade here. the price is between 51 and 55 and millions trade every day. one day it is half to one % up the next day it is half to one % down and so it goes on and on week after week. the only companys that can make money here is the trading account holders who takes comission on every deal. (they must open a share for that)
In layman's terms slippage is the difference between expected and actual selling price. e.g. If your trading system (or stop loss) triggers a Sell at R100, you may eventually only sell at R99.25. Especially relevant if the price is dropping fast e.g. Bid prices drop faster than you can place the Trade.