Subject:

The following calculations apply only to Margin, IRA Margin and Cash or IRA Cash.

See our Portfolio Margin section for US Options requirements in a Portfolio Margin account.

FINRA and the NYSE have imposed rules to limit small investor day trading.

Customers that these organizations classify as Pattern Day Traders are subject to special Day Trading Restrictions for U.S. securities.

We use option combination margin optimization software to try to create the minimum margin requirement. However, due to the system requirements required to determine the optimal solution, we cannot always guarantee the optimal combination in all cases.

## Basics Of Trading Options With Margin [Episode 97]

Please note that we do not support option exercises, assignments or deliveries which may result in an account being non-compliant with margin requirements. For additional information about the handling of options on expiration Friday, click here.

Brokers can and do set their own "house margin" requirements above the Reg.

T or statutory minimum. For option spreads in VIX securities, we may charge an additional minimum house margin requirement of $150.

For option positions that meet the definition of a "universal" spread under CBOE Rule 12.3(a)(5), we may charge an additional house requirement of 102% of the net maximum market loss associated with the spread (*i.e.*, net long option position price – net short option position price * 102%), if greater than the statutory requirement.

### Option Strategies

The following tables show option margin requirements for each type of margin combination.

**Note:**

These formulas make use of the functions *Maximum (x, y, ..), Minimum (x, y, ..) and If (x, y, z)*. The *Maximum* function returns the greatest value of all parameters separated by commas within the paranthesis. As an example, *Maximum (500, 2000, 1500)* would return the value 2000.

## Top Stories

The *Minimum* function returns the least value of all parameters separated by commas within the paranthesis. As an example, *Minimum (500, 2000, 1500)* would return the value of 500.

The *If* function checks a condition and if true uses formula y and if false formula z. As an example *If (20 < 0, 30, 60)* would return the value 60.

### Long Butterfly

Two short options of the same series (class, multiplier, strike price, expiration) offset by one long option of the same type (put or call) with a higher strike price and one long option of the same type with a lower strike price.

## Phone support will resume Friday 1/17.

All component options must have the same expiration, same underlying, and intervals between exercise prices must be equal.

Margin | |

Initial/RegT End of Day Margin | None |

Maintenance Margin | Same as Initial |

Cash or IRA Cash | None Both options must be European-style cash-settled. |

IRA Margin | Same as Margin Account |

### Short Butterfly Put

Two long put options of the same series offset by one short put option with a higher strike price and one short put option with a lower strike price.

All component options must have the same expiration, same underlying, and intervals between exercise prices must be equal.

Margin | |

Initial/RegT End of Day Margin | MAX(Highest Put Strike - Middle Put Strike, 0) + MAX(Lowest Put Strike - Middle Put Strike, 0) |

Maintenance Margin | Same as Initial |

Cash or IRA Cash | N/A |

IRA Margin | N/A |

### Short Butterfly Call

Two long call options of the same series offset by one short call option with a higher strike price and one short call option with a lower strike price.

All component options must have the same expiration, same underlying, and intervals between exercise prices must be equal.

Margin | |

Initial/RegT End of Day Margin | MAX(Middle Call Options Strike - High Call Options Strike, 0) + MAX(Middle Call Options Strike - Lowest Call Option Strike, 0) |

Maintenance Margin | Must maintain initial margin. |

Cash or IRA Cash | N/A |

IRA Margin | N/A |