Liberty - good post - re fudging the insider reports with forward sales contracts. I believe that nearly the same thing is repurchase agreements - you buy something, with a side contract to have it bought back off you at a certain price. I wonder, I wonder ..... but I doubt it. I'd like to magically know, though, if that kind of thing was happening.
The hedge funds to it every year, to clear their books before they have to report. They briefly get rid of the stuff they don't want to show (e.g. asset backed securities) and briefly buy nice looking stuff (common stock), and then after the report is out, the bank they deal with hands the original stuff back to them, minus a fee.
I doubt it re SGX. But I'd love to know for sure. Anyone wiser out there?