What's going on at IBFX?

 

I noticed that starting the week of September 7, 2009, there has been a noticeable drop-off in the tick volume at IBFX. Does anybody have any idea why this is happening? Are they getting ready to shut down? Did the changes they make to comply with NFA regulations negatively affect their business that much?

See attached bitmap image. My custom indicator "Volume Comparison" on the "Volume" data series tells a story.