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"what it depends" ?? haha

true sorry my bad.. ... so its 50 times the price displayed..

multiply by 100... thats it.. contract size.. called the multiplier

can you direct route complex orders to an exchange and get better fills then "SMART" at interactive brokers?

isn't trading directional hard enough? i don't know if i would trade options if i had true skill in trading directionally..

negation... thats good actually..

i know your trying to keep these threads alive.. but there going to get you for duplicate posts... it hurts there search engine rank to have a bunch duplicate content across there site.. they are in different catagories.. you could maybe capture attention by writing something a little...

whatever you know in this particular case will not help you.. ultimately you can not know what their true intentions are.. it would be surprising to me that the stock goes up for a while.. ackman holds.. Carl makes a killing dumps, and Ackman rides it down after... and they laugh at the...

there is no statistical significance to trading open interest... lots of studies on that.. you find something different you let me know..

regardless of my size i've learned alot researching it.. mostly i agree with you.. but obviously there is some threshold.. round trips get costly in very low liquidity options on stocks... i don't dismiss my interesting in researching it.. i think theres alot of value in some of the things...

http://www.nasdaq.com/article/soros-bails-on-gld-so-what-cm218415#.UR_2I6WTgmM soros seems to kill it.. with the yen.. gld .. large macro plays.. not a strong sign for GLD technically either..

i agree with staying away from headline stocks.. and CNBC... talking heads.. back to research...

That is a good start! Thanks

Cranking bolts off into engine blocks is how I learned mechanics.. and everything else! Haha.. what are you trying to do specifically.... you will only learn by doing... read & do... don't just read.... R is something else you can use

Ya excel probably... but idk. Take the list...make a field for trade frequency / volume And then sort The list and the attributes I'll have to figure out how to come by Use EOD data from somewhere....

very interesting... time between trades/volume ... makes sense as the ability to post a spread is a function of flow and consistancy of flow.. (volume) "To summarize, there is a direct price level effect in the dollar bid-ask spread of options, and as such if the spread is to be used as a...

what about the the bid/ask spread in implies instead of dollars? obviously the simpler the better.. i'm not even sure how i would aggregate the spread in vols across a large set of symbols...

i'm trying to create a list to scan from.. any ideas of how to "define" liquidity.. Obviously every optionable stock doesn't make sense to scan.. i'll let you know my first thoughts.. idea 1 constitutients of major indicies... generally these are going to be the larger capitalization...

interesting..

that Carl guy has been around a long time twisting money out in every way... idk.. i can't image shorting.. no position here..