Earlier today, when we reported that median asking rents in the US had just hit an all time high, we had a thought: how long until the hedge funds that also double down as landlords decide to bypass the simple collection the rental cash flows, and instead collateralize the actual underlying "securities"? One look at the chart below - which compares the median asking "for sale" price in black and the median rent in red - shows why. The last time there was a great divergence (to the benefit of housing), Wall Street spawned an entire Residential Mortgage-Backed Securities industry where Paulson, Goldman willing sellers would package mortgages, often-times synthetically, slice them up in tranches of assorted riskiness, and sell them to willing idiots yield-starved buyers. As everyone knows, that particular securitization bubble ended with the bankruptcy of Lehman, the bailout of AIG and the near collapse of the financial system. As it turns out, the answer to our original question was "a few hours" because securitizations are back, baby, and this time they are scarier and riskier than ever.