Hi, All: where to download option and future historical data ? such as daily open and close ? Thanks. JS
I assume you are after daily OHLCVOI data for futures and futures options? What charting/analysis software do you use? Which markets/exchanges do you trade?
Are the free data on Yahoo sufficient for your needs? http://google.com/search?q=option+data+yahoo will point you to code snips in various languages to pull in the data.