Summary: 25 cash portfolio 1881 1882 1883 1965 1966 1968 and 1969 I m not aware of any strategy that would allow the risk adverse retiree to identify these seven 30 year periods a priori 100 I Bond Portfolio The plot for a 100 I Bond portfolio just below shows much less variability than either of the first two charts above Looking at each 30 year period individually
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