3. Examples of margin calls A broker lends an investor $10,000 to purchase securities. The initial margin requirement is 50%. The investor has to deposit $5,000 in his account and the broker lends him the remaining $5,000. If the value of the securities in the account falls to $8,000, the account falls below the maintenance margin requirement of 25%, and the broker issues a margin ca... https://www.fbsedu.in/static/js/main.59b6eaac.js:2:108407