Financial speculator Paul Singer, head of NML Capital prides himself in having always won through his strategy of buying defaulted debt only to exponentially increase his return on investment.

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Special offer: The Hulbert Financial Digest ranks the Prudent Speculator No. 1 for performance over the past ten-, 15- and 20-year periods.

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According to The Hulbert Financial Digest, The Prudent Speculator has returned, on average, 18% over the past 20 years, while the best performing 15-year newsletter, OTC Insight, logged 17% a year.

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Mowrey, like Buckingham in the flagship Prudent Speculator newsletter (the top-ranked letter, according to the Hulbert Financial Digest, with a 21.6% annualized 15-year return), picks stocks based on value, preferring companies with shares that are out-of-favor and undervalued by investors.

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