I suggest you not do anything as a result of the stock split. 500 shares going to 2000 shares sounds like a 4 for 1 split not 5 for 1, but, in any case, after the split the total value of your holding will be the same as before with the share price adjusted. Generally a stock split is a favorable sign, but, any price change is probably already been reflected in the market. A decision to sell should be based on what you think will happen from this point forward.

Bob