They're Talking Real Money Here: Margin Calls and Requirements Surge
The many retail investors who ignored the old adage "neither a borrower nor lender be" got stung Tuesday.
- An investor wants to buy a $100 stock that has a 35% margin maintenance requirement. She puts up $50 and her broker puts up $50. Her margin balance is minus $50 (because she borrowed $50), and her equity is $50 (because she owns $100 worth of stock and owes the broker $50). Now say the brokerage raises the margin maintenance requirement for the stock to 80%. Since the market value of the stock she owns is $100, she needs to have $80 in equity -- so she gets a margin call to add $30. At this point, her margin debt drops to minus $20. Now suppose that the stock price drops by $30. Now the market value of the stock she owns is only $70, and her equity is only $50 (or $70 - $20), so she will get another margin call for $6 because 80% of $70 is $56, and she only has $50 in equity in the account.
| U.S. Clearing Adds To Margin Requirements Here Are A Few Examples | |
| Name | Margin Requirements |
| Lehman Global Intl Telecom SUNS (SXT) | 100% |
| Interface Systems (INTF) | 100% |
| Laser-Pacific Media (LPAC) | 100% |
| Datalink.net (DLK) | 80% |
| ClickAction (CLAC) | 80% |
| Eidos (EIDSY) | 80% |
| Broadcom (BRCM) | 75% |
| Advanced Fibre (AFCI) | 75% |
| Identix (IDX) | 75% |
| Myriad Genetics (MYGN) | 75% |
| Imclone Systems (IMCL) | 65 |
| Protein Design Labs (PDLI) | 65 |
| Microstrategy (MSTR) | 65 |
| Power Integrations (POWI) | 65 |
| Source: U.S. Clearing | |
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