I had an NVIDIA contract expiring this Friday and after the run it went on last night I expected to just cash the contract at open. I waited 2 minutes going from +100 to -80 in quite literally 2 seconds. I thought theta was gradual to start with. All of the predictions I saw said I wasn’t going to lose money to theta until like 3 hours from now.

    I feel like I got cheated somehow. Is this normal?

    Theta decay
    byu/Bluehaven11 inoptions



    Posted by Bluehaven11

    4 Comments

    1. smartoptionseller on

      $1,180 strike is a long way to go, even for NVDA with only 2 days until expiration. Time decay works super fast, especially after earnings is now a known event.

    2. Whoever told you you don’t lose money to theta until 3 hours from now has no clue about options.

      That said, any quick drop isn’t theta related either. Theta doesn’t affect option prices. It’s just a sensitivity measure showing you what would happen if nothing else changes but time to expiry.

      Lots of details about theta can be found in this [quant stack exchange](https://quant.stackexchange.com/a/74856/54838) answer.

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