Stock Portfolio Margin Loan Return on Investment Word Problem

Published on October 3, 2026

Word-Problem

Calculate your remaining funds, total profit, and return on investment (ROI) after buying stocks with a margin loan and selling them at a higher price.

Question

have a question. I have a portfolio worth 30.000 dollars. I get a loan on my shares for additional investment of 15.000. I buy stocks with all of my money including the borrowed amount. The cost of each share is 100 dollars so I get 450 shares. The stock price goes up and I sell my shares for 130 dollars each and I am in profit. How much money would I have left after I return the borrowed amount and how much would the profit be and the return of investment?

Answer

  1. Calculate the total revenue from the sale:
    Since you sold 450 shares at each:
  1. Calculate the remaining money after repaying the loan:
    Subtract the borrowed amount ( ) from the total revenue:
  1. Calculate the total profit:
    The profit is the remaining money minus your initial personal investment ( ):
  1. Calculate the Return on Investment (ROI):
    ROI is calculated by dividing the profit by the initial personal investment:
Final Results:
  • Money left:
  • Profit:
  • Return on Investment: