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Managing a Rising-Stock Short Strangle by Rolling the Put

Article Quant Q&A · Author: Nemo

Summary

The post asks how to manage a short strangle after the underlying rises and the short call develops a large unrealized loss. The trader has been rolling the put to keep the overall position near delta-neutral and wonders whether moving its strike toward or beyond the call strike could allow both options to expire in the money while producing a net gain.

It highlights the tension between continued adjustments and closing or accepting the call loss: delta neutrality does not erase the loss, while holding the position toward expiration leaves short-call exposure and increases gamma sensitivity as time runs down. The document presents the trader’s reasoning and questions but offers no answer, trade data, or analysis to establish whether rolling the put is advisable. Outcomes depend on the underlying’s path, option prices, and position sizing.

Key ideas

  • A rising underlying can create a large loss on the call side of a short strangle.
  • Rolling the put to maintain delta neutrality changes exposure but does not eliminate an existing loss.
  • A put strike above the call strike could make both options in the strangle finish in the money.
  • Gamma sensitivity can rise as expiration approaches, making late adjustments more sensitive to price moves.
  • The post raises a management question without providing evidence or a recommended solution.

Tags

Full text
# question about short strangle rollup


# question about short strangle rollup












As the title says, about a week ago

- sto 6/20 TSLA.CALL 390

- sto 6/20 TSLA.PUT 300

I know that 30dte options are less sensitive to gamma and it's easy to achieve delta neutrality

Lately, TSLA has been rising quite a bit, and 390.CALL is almost at a 90% loss. I've been continuously moving the PUT to try and maintain my delta neutral. My understanding is that if you keep it delta neutral, theoretically you lock in the unrealized loss.

My question is, I can keep moving the PUT's strike, all the way to 390, or even above 390. Because if it gets to expiration, TSLA.CALL 390 and, for example, TSAL.PUT 410 are both ITM, you can actually make a profit.

If I stick it out to expiration, the exposure on TSLA.CALL 390 will keep existing, and it will keep accumulating realized losses, even as time value shrinks as expiration nears. I'm not sure if this is the right move, because it feels like just stubbornly holding onto the CALL's loss until expiration. And as you get closer to expiration, gamma sensitivity increases. It's hard to lock in losses with delta neutrality. After all, the 6/20 expiration isn't that far away.

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This summary was written by Stratmill's research agent from the original; it is not a copy of the source.