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I think the times of large players doing unsofisticated executions are long gone. Even the time of unsofisticated algos are gone (see below article). And, as @bone said, there's so much hedging and cross activity that figuring out the intent is impossible. Add to that that whales most of the...

Let's say they do give a damn, how would they figure out why you did the things you did? Is it so obvious just by looking at executions? Can they replicate it next quarter by themselves? You do use some discretion, right?

Are you getting this from some book? What year was it written?

K, that is what I was trying to get to. Thank you for sharing your experience. And thanks to everyone for contributing! ... Turned out to be a pretty good thread I think.

My buddy used to work for a Boiler Room type firm. Because they were registered in US, they preferred to work their magic on wealthy Europeans. I assure you they did pretty well. Maybe risk taking is more accepted in American culture, but people are the same everywhere.

K, fair enough. Your point is well taken. I like your journal and your journey, so I will put myself on mute as not to distruct. Unlike you, I don't have any friends who are successful at selling premium(or buying). It's not that I'm set against it, but I am trying to understand not the...

Right, so originally I got "excited" because it sounded like vol pop was a given and I thought that even if it was just enough to counter weight theta, that would be pretty nice - lots of break evens, some small winners, and occasional home runs. Do you think that if you do your study on large...

So does this mean there was no volatility pop except for one time? If so, these straddles should suffer from theta.

I suspect this is all due to data compression. Instead of sending the whole number, they just send the delta. Just a guess, not that it matters.

Thanks for sharing this. You are talking your intuition regarding closing early vs. holding till expiration. Below was a bit of a bummer, no? " After 12.5 years of trades there were very little profits for the vertical put strategy. Meanwhile the brokerage is getting a decent paycheck through...

Ok, so may I ask how you were making money with options then? Were you finding mis-priced options? We're you taking other side of someone's trade when you felt they were mis-pricing? We're you simply hedging portfolio and were willing to pay fair value for it? I assume you were NOT simply...

Found related thread on ET https://www.elitetrader.com/et/threads/best-time-to-buy-strangle-straddle.323248/

I read in another article, and mentioned in my post, that increase in IV is usually enough to counter balance theta. So the straddle could gain, but usually doesn't lose much. That was the claim. You are saying theta will generally outweight any increase in IV. Decay is guaranteed to happen...

Sorry, what does this mean?

Hello, I was watching a video where the guy was describing buying a straddle weeks prior to earnings and closing one day prior to earnings. The claim was that it's very likely for the IV to increase substantially. I googled but didn't find much on this. But below article has some points I don't...

I've seen this before and was a bit taken back as well. I don't think there's the "right" answer to this. Here's how I would interpret this behavior. Andrew says that the guy withdrew his order and then would submit it again as price got closer to .80. Why would he do that!? If he simply...

Thanks, @isc1746! Still, the color doesn't seem to stay - turns white even though trades are still executing at bid/ask. Also looks like same size trades are being combined, so I assume what IB wanted to do is to display 1x3 instead of three trades with size 1, but instead just displays x100...

I don't know for sure, but my impression is that HFTs in the FX space are mostly liquidity providers - meaning they are making money by taking the other side of retail order flow. Not unlike the HFTs that get the Equities retail order flow, they don't really need to go outside of their systems...

Since we are on the subject, I can't figure out how to make TnS lines be colored instead of showing dots. Below is a snapshot of TOS vs IB just for comparison.

Isn't it same as observing orderflow (DOM+TnS)?