First of all stock splits for these of you which might wonder about this is basically when a company reduces its stock price, but increases the number of shares you have to make up for it.
To be clear here, stock splits won’t affect your fractional shares any differently from if they were full shares. If you are confused or dont understand it fully let me give you a little example. So you own 5.5 shares of a company which undergoes a two-for-one stock split, you’ll then own 9 shares. However the total value of your shares wouldn’t change.
Nothing more than this will happen.