Put/call ratio - way to view and chart for particular equity

[trade-9]

Is there some way to view (and chart) the put/call volume ratio for a particular equity? I know you can view it for all equities, all indices, or all equities+indices combined, but how about for a particular stock?

I'd like to be able to do this in eSignal or Trader Workstation, but if neither of those, I'd still be interested to know. I know you can get some of that data for the current day by looking at an option chain, but I don't think you could easily chart that.

 

[botpro]

Such results like here (you can specify the underlying)? :
http://theocc.com/webapps/volume-query
but in your own app, I guess, right?
At the above link you can also download the raw data as csv.
Sorry, the data below is garbled; you can generate it at the above link.

     Exchange Volume    Call/Put Volume    Transaction Type
Opt. Symbol    AMEX    ARCA    BATS    BOX    C2    CBOE    EDGX    GEM    ISE    MCRY    MIAX    NOBO    NSDQ    PHLX    Calls    Puts    Cust    MM    Firm
2SPY     0    4,942    0    0    0    0    0    0    0    0    0    0    0    0    3,594    1,348    2,471    0    2,471
SPY     333,156    431,306    665,984    289,798    194,800    1,326,064    62,082    121,464    1,531,776    1,624    746,492    35,988    497,542    581,820    2,763,456    4,056,440    2,859,569    3,489,034    471,293
SPY7     0    0    8    0    0    240    0    0    0    0    0    0    0    16    238    26    136    128    0
Totals    333,156    436,248    665,992    289,798    194,800    1,326,304    62,082    121,464    1,531,776    1,624    746,492    35,988    497,542    581,836    2,767,288    4,057,814    2,862,176    3,489,162    473,764
Percentage    5%    6%    10%    4%    3%    19%    1%    2%    22%    0%    11%    1%    7%    9%    41%    59%    42%    51%    7%
                                                                           1.46 Puts to 1 Call

I would set up a small database for this with precalculated or imported values, and plot the values.
If you need sub-EOD accuracy then things could get complicated.