Not sure why you seem to be fighting the concept as it is painfully clear to anyone with a lot of experience - or why you have probability in quotations.
As far as your question - there are a lot more variables / filters to apply then just "hey - what are the odds this keeps going?" (like your consideration for indexes already having moved 1.5 - 2%) I'll readily admit I'm no expert in stats / probabilities. I just know from time put in and other traders far more successful than myself that that is clearly the case on a day like today. Just look at the PA / chart. LF would be a better ask on the math as he is always crunching / dropping figures in the ES thread.
You had commented on a potential short being a good R:R trade at 1:05 EST or about 3893 ES. We've yet to drop below that level for what seem like obvious reasons to me (not to say it wasn't or still isn't possible). What is your risk on the trade - or is it already a bust?
I wasn’t the one who brought probabilities, I knew that I set a trap for you by asking this question, cause it’s a can of worms to try to answer it. I usually go for juicy returns compared to risk, so I don’t care whether it’s a trend day or range day, I buy and sell levels that I perceive to be extreme for the day, sometimes it works and other times it doesn’t. I’m pretty certain this is the way how it goes for most here, so I don’t research probabilities, I sell resistance and buy support at levels that appear to be extreme to me. I think @schizo would get what I am saying.
