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FED printing money -> stocks are denominated in USD -> no random walk for stock, they are slowly rising from USD "point of view" -> this is of course affecting prices of options, because if stock is used in position construction with options (stock used as hedge), its probability of move up...

Ehm, what? Seems like your information is not correct...

1. What about system that automatically adapt to market conditions? I have those... so no optimalizations needed ever, no rebalancing. 2. Survivorship bias can be easily solved for $9000 https://quantquote.com/purchase.php 3. It is not good to use publicly available softwares (except of R...

Maybe it will be better to adapt yourself, than wait :D This situation can last for tens of years...

I can -in case of real random walk... but there isn't such thing is markets.

No sentiment for me... give me exact date and price of SPX and I will write my probability :) Or give me date na probability and I will write my estimated price(s) ... etc.

Why not, there is not much risk being long only if done properly... What method do you use for construction of pairs?

Books are probably old and written before massive QE which is going on right now everywhere... so this long bias of stocks is incorporated in option prices, this is why ATM calls are so cheap compared to ATM puts...

Automated. But since I am full time trader I am around computer during the day anyway, so basicaly it can be done manualy too - I have software which automaticaly construct best possible pairs based on my needs and it graphicaly shows signals too if manual entry/exit is needed (in case there...

I am statarb guy... Actualy my system works the way, that it ususally trades pairs, but it can also trade long only and short only individual stocks - all beta hedged...

Time to end speculations. This is oficial response to my question regarding VIX futures prices from CBOE: "Due to internal testing on Friday 7/4/2014, traffic was generated utilizing production channels to verify the integrity of our production system. We periodically run traffic on weekend...

:D Hehe... Have you done some measurements how exact are you calculations compared to for example basic statistics of movement of underlaying, deltas, standard deviations?

My Bid is $1.00 ...

There is not publicly available !accurate! method for quick expectancy calculation of vertical spread :) I have developed such software... for painfully a lot of money I am willing to lease it :) Though I am able to provide only results (win%, fair price, edge calculations, ... ), math behind it...

Interesting - I am around trading from 2006, from 2008 first trades, from 2009/2010 full time trader and I have never heard about "test trades"... some additional info somewhere? I have not found anything googling...

Bad data? So probably also bad volume :D I have heard from friend of mine that one guy managing serious amount of money forgot to switch off his VIX Futures ATS and because markets were not moving (holiday), its ATS "calculated" that fair VIX Fut price is supposed to be just little bit above 5...

Have you (somebody) taken some positions in those f***ing cheap VX futs? :D

Not only VXN4, but whole term structure is 5.40 or 5.20 ... http://vixcentral.com/ All datafeeds like TOS, IB and free delayed datafeeds I have checked have such prices. Probably some "holiday bug"... and if it is no bug and it will be possible to trade with such prices on monday, then I...

LOL :p :cool: Do you need help in trading? I am able to make bet with you that I am able to overperform SPY longterm, that there is no random walk...

Hey, aren't you accidentaly Gordon the "Crook" ? The guy who is in debt around $3,500,000 and who was also in TV Nova and even investigated for some frauds? The guy who presented himself under GGB company which actualy never existed...