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When a stock is moving up, does the chart uses ask price more or bid price more?

Anyone knows how delta neutral strategy makes money? There are comments that one has to constantly hedge and readjust to delta neutral. But ultimately how does this strategy make money from large price movement from the stock? When is appropriate to close out the entire position?

The option delta is something like a delta of 0.7 means that for every $1 the underlying stock increases, the call option will increase by $0.70. However from the daily change in stock price compared to the option change do not seems to adhere to the definition. Like for ibm, the from on 24 may...

Is possible to transfer stock holding from a foreign stock broker firm into interactivebroker?

OHLC data from yahoo

Why is that data provider yahoo or google does not reflect the right open price for FTSE100? When market open the price may not be like yestersday close price. Below is a picture of the FTSE100 for the previous week. Obviously there are open gap compared to yestersday close but the data in yahoo...

Anyone knows any realtime data source for Topix index futures?

interactivebrokers do they use black scholes model for their pricing of options? but the calculated amt seems to differ from the price on their platform

hi anyone knows how IB calculate option pricing using the black scholes model? the model has risk free interest rate and standard deviation.

Does the zenfire and mirus has international indices like asx200, ftse100, dax30, etc and not just us indices on thinkorswim. Any webpage that is webbase like barchart, stockchart, etc but they just offer us indices

Anyone knows any webpage has free realtime chart for the main international indices like cac40, dax, asx200, etc. Yahoo has the indices but there are delay.

How to program excel to calculate the max downdraw?

Is there any point in betting with hedgestreet and igmarkets? They are betting firm and out to make client money and some client said they alter the books to their side and took position against clients.

Betting brokers like betonmarkets, ig, etc offers fix odds betting. However these betting brokers are like bucketshop out to make money from client. Would you bet with them in LT? There are some comments saying when client is winning, they interfere and tried to makes the bet odds side with...

Anyone know brokers that offers cboe binary options for vix and spx besides thinkandswim?

Does futures vix converge to cash vix exactly on expiration day? Possible to use the cash vix open value for vix option settlement value? How much is the variance if they are not the same?

Anyone has experience with hedgestreet.com? Are they legit? A simple webpages without much info. Tried open a demo acct but didn't receive email login...

Anyone knows brokers that offers binary options on vix?

Are index options like S&P500, DJI, Nasdaq, etc base on their relevant futures rather than cash? Just like vix bases on futures contract.

Does futures converge to cash vix at expiration? When comparing the Special Opening Quote of vix options of some months, they are quite different from the cash vix. Also where has a complete history month of the Special Opening Quote of vix options?