Thank you for all for your replies...appreciate it.
if what Leed said is true "The basic idea is the same as for equity index futures. The underlying equity portfolio (index) is well-defined but neither the buyer nor the seller actually hold this portfolio. The future payout depends on how much the underlying portfolio (index) appreciates or depreciates."
So are you saying that IKB bank lost one Billion dollars because the price of homes that the syntactic CDO references drooped by one billion dollars?

if what Leed said is true "The basic idea is the same as for equity index futures. The underlying equity portfolio (index) is well-defined but neither the buyer nor the seller actually hold this portfolio. The future payout depends on how much the underlying portfolio (index) appreciates or depreciates."
So are you saying that IKB bank lost one Billion dollars because the price of homes that the syntactic CDO references drooped by one billion dollars?