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32 views

Where can I find best end of day option data?

Looking for accurate end of day option data. Preferably with Greeks. Any recommendations?
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Relation between Parkinson number and historical volatility

In his book 'Dynamic Hedging', Nassim Taleb gives the relation: P = 1.67*historical volatility, where P is the Parkinson number. What is the basis of this relationship. Does this hold under special ...
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Where can I find free single-day charts for the S&P 500?

I'm trying to find free historical charts of the S&P 500. I don't need the raw data, I just need to access a simple chart showing the movement of the index over the course of the day (for an ...
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56 views

Real Time/Historical weather data

I am looking to incorporate weather data into my algorithmic models. What is a good source to find historical + real time weather data by zipcode or region? Any help will be appreciated! Preferably an ...
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32 views

Mutual Fund Cash Level Data

I look for a source to download historical monthly mutual fund cash level data from. Is there any free/cheap source available?