I noticed a HUGE bug that some people may be taking advantage of. I had some alliance members try it and it appears to be system wide. I looked at the "how to report a bug" thread but it doesn't really concern any of the bullet points, so here is my description....
I first discovered this when I sent a broker request to the wrong broker. It was an order worth about 1B of down payment. I then canceled the request, refreshed the page, and noticed my airline value had jumped 1B. For example, I had a value of about 35B, I requested 1B in aircraft, I immediately realized I sent the request to the wrong person so I retracted it, then a moment or two later I was at 36B. The bug does right itself but ONLY when you make another broker request or buy a plane.
I've had several alliance members experiment with it and they all experience the same thing. It doesn't mean anything in the short term of course, but in the waning days if someone has a few billion in cash and is wise to the glitch they could conceivably pull the sham and shoot ahead several billion dollars.