thanks gfp for your comments
so would it be right to say, even where unrealised gain or loss for TRS, there is still a movement of collateral, held as restricted, which could be in the form of cash or T-bills either received from counterparty(TRS gains) or sent to counterparty (TRS losses) - is that right?
And then I guess I was trying to get to the issue of taxation - do you think they would have different re-measurement dates & keep unrealized to defer tax?