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There is no such thing as "free" option data. This is free -->http://www.nasdaq.com/symbol/aapl/option-chain You could crawl that. But to get the actual ticks or intraday data, you will unfortunately have to pay. I strongly suggest you find a college business program that has option data ticks and reach out to them. Best of luck, JL
I do not know any free sources. One of the cheapest commercial is http://eoddata.com/products/default.aspx
in RQuantLib you need to set the evaluation date using setEvaluationDate() This is the date used by all QuantLib valuation functions in your case 10 May 2014.
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