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I found out about it in that post myself, so I may be wrong.

It says so on the interactivebrokers website somewhere, I remember seeing it a week or two ago, but I can't seem to find it. There was also a link to it in one of the threads, which I can't find either.:) I think it applies only to retail traders, not market makers.

See here

No, no broker or anyone else could protect you against early assignment. It's a random procedure.

It is against US options exchange's rules to have a computer system trading automatically without human intervention.

I'm not aware of any free source for that, I got it from the Bloomberg terminal.

It's not just about digging yourself out of the hole, you have to consider the opportunity cost.

Yes, 1000 shares is 10 contracts. Jul 30 calls were at 1.32 bid as of 04/09 closing. That's per option. Options trade in contracts, where 1 contract is 100 shares so the price of 1 contract is 132, and 10 contracts would be 1,320. The options will not be exercised if they are OTM, they...

As far as I'm aware the list of stocks is available on CBOE's website and the options on all of them trade on all option exchanges not just one.

I generally like to buy some lower strike puts for protection.

It's not as simple as buying closer to expiry. Can't help you with IB, maybe someone else will. Once again, no, it's not as simple as There's a lot more to it. I sense that you really lack knowledge in the options department. I suggest you read "Option volatility & pricing" and some...

Ok, I had a look at the IV chart and based on what I see the IV has dropped by about 100 basis points in the last week or so, which confirms my intial reply. Married put works at expiry! You need to hold the position to expiry to have a fully hedged position (less premium paid, of course)...

There're not enough details to give you a full answer, but the most likely reason for the "underperformance" is the decrease in implied volatility.

The strikes to buy/sell depend on how much "repair" you want and what the current premiums are. Just open up the chains and test the various alternatives.

The position goes against you then there's no magic wand that will "repair" it.

Since you mentioned that you are familiar with the long stock repair strategy then I assumed you are talking about the call ratio spread that is added to the long stock to "repair" it. In a long stock repair I'm referring to you buy a call at a lower strike and short two calls at a higher...

While I agree that TOS is not geared towards scalpers, they have added an optional feature to speed up the trading by bypassing the order entry and confirmation screens and trade directly by clicking on the quotes. You must first enable it in the setup window and then just hold down SHIFT and...

Thinkorswim should be good when they enable them.

The stock repair strategy uses a ratio call spread, so just use a ratio put spread to repair a short stock.

You wanna do it by hand!? Buy a SPAN calculator or you can use the OCC's calculator for portfolio margining for free, which can be found here.