The information is widely available. I thought it was commonly known.
Just look at the Bloomberg US spinoff index. Over the past three years the BSOI is up 60% versus 35% for the S&P 500. For the last 10 years, the spin index has returned 342% versus 154% for the market (S&P 500).
While these appears to be more like 100% better, the over all the percentage is closer to 50% when you go out longer than 10 years.
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