Does yahoo finance have stock option charts which tracks the price of a contract over a period of time?

Answer 1

No they do not, but you can get such charts from businessweek online.

Start at

http://stockmarket.businessweek.com/stocks/quote.html

enter the symbol for the underlying and click on "Get Report."

On the resulting page, click on "Options" near the top of the left-hand column.

If the option you want is not the near month, use the "Expiration" drop-down box to select the month, the click on "View Chain."

From the optons montage, click on the symbol the option you want. That will give you a page such as this one

http://stockmarket.businessweek.com/options/quote.html?INSTRUMENT=9810943

which includes the chart.

If you want the data in table format click on "Historical Quotes" in the left-hand column.

Answer 2

yes

Answer 3

Yes, they do.

http://platinum.optionetics.com/yhmain.htm