Stock split
When each share is divided into several (say 1 into 4), each at a matching fraction of the price.
Nothing about the business changes. StockSlicer adjusts every earlier year so the per-share history compares fairly.
More investing words
Profit per share (EPS)P/E ratioBook value per shareFree cash flowCapital spending (capex)DividendDividend yieldPayout ratioShare buybackDilutionRevenue (sales)Profit marginDebtMarket capitalization10-K and 10-Q reports
For education only, not investment advice.