Then I should be asking you, "What's the craic?"!
If you truly can arb, I would attempt this in reverse. (More risk, of course) If the quotes are accurate, then try to repeat this trade under basically the same criteria, only buy to open the spread at 88. If you can't close it, don't worry. Assignment will take care of it for you. No need to close. I would still try to call in or request that they call you. Always better to speak to a human . . . enjoy it while you can before AI goes wild!
If you truly can arb, I would attempt this in reverse. (More risk, of course) If the quotes are accurate, then try to repeat this trade under basically the same criteria, only buy to open the spread at 88. If you can't close it, don't worry. Assignment will take care of it for you. No need to close. I would still try to call in or request that they call you. Always better to speak to a human . . . enjoy it while you can before AI goes wild!