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@GRULSTMRNN , it's hard to talk about issues when people mix up different markets and different problems they are experiencing. I understand what you want - fair markets. I want same! What I hate is when regulators choose a scape goat and blame all ills on them to take attention away from...

Contact this guy while he is still available. https://www.elitetrader.com/et/threads/the-reddit-geek-who-raked-in-100-000-with-2-trades-is-taking-a-small-break.337041/

Bingo!

Don't agree - competition is good, but what we have now is out of control. I totally agree, but that's what we have now. The only barrier to entry is money, not unlike other industries.

Not the way of French revolution.

There will always be someone faster than others, just like there will always be someone who's smarter than others. And there are people who can be both.

For completeness

Doesn't that just transfer power from one elite to new elite? Human nature.

I liked this video so wanted to share. Nothing ground breaking, but some good lessons at the end to think about.

I'm sure they are, but this is not HFT front running. The OP said that HFTs essentially have non-public info they use which would be illegal, but they don't. The firms that do may use HFT technology to take advantage of private information, but it's not the same. The kind of front running...

No, that is not the reason. All (most) vendors use official feed. Also, every market behaves differently, so should not mix up issues. Pro-rata is not in US equities. Well, add to that asymmetric speed bumps - thanks Brad! Now pros (MMs) can pull their orders before HFTs can sweep them, but...

Whatever they do with it, however bad, is not front running as per below definition. I don't think you want to front run dumb flow, maybe fade it? https://www.investopedia.com/terms/f/frontrunning.asp

Front running implies knowing of clients' orders and using that information to position in front of them. HFTs don't know, they guess. They use publicaly available info, generally speaking. There's lots of info/tools/deals which is available to pros which is out of reach for most. Always been...

I really appreciate you even taking time to answer my questions. Unfortunately, your answers mostly go right above my head. I don't know if it makes any difference for options trading (like in decisions to roll), but what is a probability of below happening for 10D IC? If I understood you...

This is actually pretty exciting. I'm thinking of joining his chat room and doing the challenge side by side. I am very curious to see how he can control his risk on such a small account with such a volatile strategy. I'm pretty sure I will blow it in the first two weeks :) If he actually...

K, regardless, is the probability of touch really additive like that? I can't believe 10D condor statistically has 40% of being ITM at some point over large sample size. Both sides being ITM at some point must be miniscule, no?

Did he mean 20% for call plus 20% for put regarding Prob of Touch?

In equities I can send hidden orders to the exchanges. I don't think these are available for options. I can place my hidden order between NBBO and someone can benefit from it by receiving better price compared to NBBO. Do options exchanges allow for such functionality? I quickly scanned CBOE...

I don't mean to start the martingale discussion here, just have a question. How do you position size with martingale? So let's say you get that rare outlier event which gives you very high prob of success. However, you cannot load the boat because you know that you may have to double up...

Are you sure about hidden orders on options exchanges? Are you saying that I can send a market(able) order directly to exchange and receive a price improvement? Or by hidden you mean off the exchanges? https://www.elitetrader.com/et/threads/do-options-mms-see-hidden-spread-orders.325804/