A 1-for-50 stock split is a reverse stock split that means for every 50 shares a company owns, it combines them into one new share.
A 50-for-1 stock split is a forward stock split that means a company issues 50 shares for every one share an investor already owns, which lowers the share price to one-fiftieth of its previous value.
Both you and the company got it wrong. "Chipotle Mexican Grill's (NYSE: CMG) 50-for-1 forward stock split was one of the largest in the history of the New York Stock Exchange." Look it up!!!