It's to prevent riskless arbitration actually. You are not allowed to do a combo where you cannot lose no matter what happens to the underlying. OP was probably trying to open a spread (most likely an iron butterfly cuz that combo has the highest possibility of resulting in a riskless arb price due to the prices sometimes not being updated quickly enough) or tp a spread for a price higher than the difference in strikes of all the options in his spread. But on the other hand, the rule is also there to protect traders from paying too much for a combo either when trying to buy back a losing combo or opening a combo peddled by talented market makers (like Mr. @taowave ). https://optionalpha.com/help/price-exceeds-strike-difference-error#:~:text=The close position order is,necessary on a spread position. So if the OP had been able to put away the attitude of "I am always correct and everyone else must be stupid and everything wrong must be a bug", he would've done the research and found out that this rule was set up to protect traders like him as well even though he thinks he doesn't need any protection because he's a math and science genius. LOL Oh well, we will wish him all the best in his coding efforts. LOL
I know it's riskless arbitrage since I described it. It's a typo. You idiot!!! This is all you can do??? Pick on people's typos?? You have anything else useful to add?? LOL Mr. Dittyshit!! And I am pretty sure that I wrote "arbitrage"...From now on, I am going to have to take screenshots of my posts. This is the second time that you are able to pick on typos that are so close to the actual term and interestingly they are all on option-related threads. But what's more disturbing is why am I all of sudden able to see your garbage?? I always have you on "Ignore" and have blocked you. Did somebody change my account settings?? None of the moderators are on right now, is this @desterio f*** able to (possibly) change people's post, change people's profile setting just to force people to read his/its garbage?
If you thin-skinned fools were not so concerned about appearing stupid you could actually channel that wasted effort into the mkts.
Hey, easy now you fat thing. We don't want your blood pressure getting up again, you know your little heart can barely handle that fat body of yours even when you are not angry. I don't want you having another stroke or heart attack!
Breathe in, breathe out, fat thing. Just calm down and take it easy. I can see you fat face glowing red with rage from here. Not good for you ticker, not good at all.
I created a feedback thread on this issue. https://www.elitetrader.com/et/threads/users-on-ignore-and-blocked-showing-up-in-threads.372603/ Has this happened to anyone here before? This is getting ridiculous.