What happens to options when a stock split is similar to what happens with stocks. You get more contracts, but they are at a lower strike price.
For instance if you own an $80 call option on an $84 stock and it has a 2 for 1 split you now own two $40 calls on a $42 stock.
Does it affect the Price Movement?
It should not play a major role in price movement, but it has been suggested. Many people believe that a stock splitting shows a growing company and will most likely continue to grow. This has been proven to hold some truth in the past.
One study found that between 1975 and 1990 stocks that had a 2 for 1 split tended to outperform the overall market by 7.9% after a 1 year period and 12.2% after a 3 year period.
Return From Stock Split Definition to Stock Trading Terminology