Actually 51 quarters so far ... This mbs trust for example is set to continue for another 15,25 years or another 61 quarters of dividends ... https://trustinvestorreporting.usbank.com/TIR/public/deals/detail/9564/wamu-2006-he1 Imho we will get a bulkload of $$$ for the accumulated dividends for the last 12 years plus ongoing payment for the next 15 plus years.