UBS' Business Jet latest survey which main points summarized below. 

• Index at 49, up 21%: Our latest Business Jet Market Index came in at 49, 21% higher than our prior survey from January with all three market segment indices (small/mid/large) increasing to near 50. Our measure of absolute business conditions increased 12% to 4.5, as high as it has been since 2008.
• Customer interest & 12 mo outlook lead survey: All five component scores moved higher with large increases in our customer interest, pricing and 12-month outlook scores driving the overall increase in our index. Our customer interest and 12-month outlook scores are both now well above 50, indicating incremental improvement, although still high inventory levels remain a drag on our index.
• North America customer interest strongest: Our overall customer interest score increased 27% led by strength in North America (73), Latin America (68) and Asia (66), partially offset by relative weakness in Middle East (53) and Europe (40).
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The good news for the jet resale market as 2011 came to an end is that it looks like the bottom has been reached and the market is stabilizing.

The number of retail sales transactions returned to within nine percent of its high reached in February 2008. As of the end of September, there were 2,058 transactions. Compare that with the low water mark of 1,426 transactions in June of 2009 and there is reason for optimism.