The value of your investment in Cash App stock would depend on the current market price of the stock. If the market price of Cash App stock is $10 per share, then your $1 investment would buy you 0.1 shares of the stock. If the stock price increases to $20 per share, your 0.1 shares would be worth $2, giving you a profit of $1 on your initial $1 investment. However, please note that stock prices can fluctuate and investing in individual stocks can be risky.