charting for spreads and ratios

What are some charting services that allow you to chart spreads and ratios? I know esignal does, any others?

 

CQG allows for spreads and ratios...very expensive

 

How expensive is CQG? Couldn't find pricing on their site.

 

Ensign

Its only $40/mo and can use IB for a data feed.

 

www.tickquest.com

 

Last i checked, with all exchanges CME BOT NYMEX NYSE AMEX NASDAQ...600 per month for the basic package...goes up from there.

 

xstudy, the charting package with xtrader has a real easy to use ratio spread builder. just drag and drop your contract in.

 

Quotetracker can do it for free.

You create a portfolio with long and/or short legs, in any position size you want, and you chart the portfolio's total value.