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But if you left it unmanaged and closes above 115, you end up flat anyway right? (just losing the debit if it was initiated as a sym. natural per your example). The real assignment risk is if spot closes between 115 and 105. Please correct me if am wrong, sometimes I get such a hard time...

There you go https://www.elitetrader.com/et/threads/finally-got-the-logic-of-selling-to-close-a-net-short-combo-position-on-ib.349793/

The hint is in the available funds.

Isn't it something new? did not fully research but I thought it was a new launch.

XSP Seems interesting for small accounts

This in an interesting tidbit, thanks for the heads up!. You have any idea on the logic of this? from the broker or MMer perspective I can't grasp where's the reduction in risk (besides the small amount of Delta offset). I have a long time with IBKR and never noticed that (never sell naked...

This is pure gold.. Let my try to fully understand it, so you Destrieroed your way into a LONG put diagonal 25/20 Mar05/Apr16 for a credit instead of paying a debit?. Or you sold that diagonal and flipped to debit that fast?.

Funny how a meme position aged this well, after all the time selling calls against now I have a riskless / negative basis in what's left of my long stock. And also managed to sell at very good profit much of the position that I intentionally left uncovered after seeing that many frequent pops.

OP

I don't believe the system is so fragile, that just 1,000 options on a mid cap, even bought at the exact same split second, could cause any important gamma squeeze.

He could (should) had set a stop loss with long calls.

You made some interesting and valid points about the DTCC. But you are confused on the short interest topic, the short interest is on the float, not in the total shares issued.. and Plotkin was long puts, not short stock. So the pain and burden to cover was on some market maker side.

I rode that one too acere, sadly a much smaller position... But great trade anyway!

I feel your pain. The Bearer Shares elimination was a huge loss.. It was a perfect way for non US Residents (my case) to own RE in the US and passing it totally hassle and tax free. (probably for US residents too, but I never confirmed that). Currently residing in Panama since about 12 years...

That's priceless advice sir, wish I've read this some time ago, would have been much easier for me to grasp it. But it wasn't that bad after all because I forced my self to construct every position leg by leg (by instinct I stayed clear from their templates from day one, glad to know I wasn't...

Thank's for your feedback, I prefer it too.

Thanks again for your always mind blowing feedback, Yes, I shorted the Sep25 460/470 put spread for 5.26 I'm taking my time to fully understand the mechanics of shorting the Sep 470/480 call spread as I haven't traded any iron flies yet (just condors), I still don't fully get the profile of...

Thanks for the input, I'm clear in the total loss amount by closing: debit paid to close minus credit received at open. I structured the post in the way that it's shown on IB TWS, you 'sell to close' that particular spread position for -8.80 (selling at negative is a debit).

I know I got totally caught in the euphoria froth, I have my daily reminder. So I opened (at least it was just 1) on Sep 1st: TSLA SEP25 470/460 for 5.26 credit I'm deep underwater, cost to get out ~ 8.80 debit I'm thinking of rolling to OCT16 360/350 (it was almost at -6.00 on friday) I...

Not included, but my guess is that probably because of the already complex price mechanics of spreads, the additional burden of the beneficial fill/price/possible rebated routing of the algo wouldn't be practical.