Very nice.<p>I am running a similar site, and I wonder whether it isn't a bit overwhelming to have all the bells and whistles on the one page, upfront. In my experience, you get tons of bounces because people don't know (yet) what your site is for (but as someone who does know what options are, it does look useful). I don't think there is any single "answer" though.<p>My "solution" in the past has been either to break up all the options into a sequence of choices (so the user only has to make one choice at a time, rather than worry about all the other knobs and dials/what they do/what they have missed), or (where possible) divide the choices between pages in some way that makes sense (this wouldn't make sense in this case but you would do puts and calls on separate pages).<p>Would be interested to hear any other solutions though. I do these kind of sites (tables, lots of things to select, lots of data) almost exclusively and so I am always looking for more solutions.<p>Some other thoughts: maybe make the top bar smaller to give yourself more room.<p>I am not a big fan of centred data in tables because the spacing can feel irregular. And I would try to standardize column title length (for example, using abbreviations/tooltips) so your spacing is even too. My eye is drawn immediately to the underlying price column because of the gap created by centring/title length, which isn't good because this isn't really an important column. I would also consider working out which column is most important and making that more prominent (if possible) so the table is scannable (another option is hiding some columns, again I am not sure how this fits with your vision for users but is the user scanning rows and only needs to look at the delta later? Some of your columns are clearly duplicated in the description too, do you need separate columns for bid/ask...lots of options I think to cut the table down a bit...I have a 15" laptop and 10 columns feels like a lot).<p>Finally, very minor point, but I wonder whether the font on the unselected multi-select buttons is too light...it is very, very slight but just blends a bit too much with the background, imo (generally, the colour scheme/contrasts for your selections are excellent, I feel my eye is drawn to the right places and nothing is distracting).<p>Well done though. I think there is a huge niche for these kind of financial information products.<p>EDIT: Open Interest is spelt wrong in the table's column headers.