With the S&P 500 up 16% year to date compared to 6% for the TSX, it's easy to see which country's business leaders are more confident about the future. It's also possible that Canadian investors just don't care about stock splits. Whatever the reason, I'd like to see these three TSX stocks split at some point in the next year. Canadian Imperial Bank of Commerce The last bank to split its stock was Toronto-Dominion Bank ( TSX:TD )( NYSE:TD ) in 2013. TD stock went on to gain 15% over the next 12 months. Another bank to gain from a stock split is Bank of Nova ( TSX:BNS )( NYSE:BNS ), which rose 19% in the following year. Why Canadian Imperial Bank of Commerce ( TSX:CM )( NYSE:CM )? First, it's my favourite Canadian bank. It's undervalued compared to its peers and provides the best dividend yield. Second, the last time it split its stock in 1997, it was up a whopping 27% a year later.