By The Sizemore Letter<\/a><\/p>\n If you don\u2019t know who Jeremy Grantham is, you should.\u00a0 In fact, once you finish reading this article, you should drop whatever else you are doing, go to his website<\/a>, and read his latest quarterly letter.\u00a0 Make it a habit to read every quarterly letter as they come out; you\u2019ll be a better investor for it.\u00a0 (While you\u2019re at it, make it a habit to read his colleague James Montier\u2019s work as well; Montier\u2019s writing on behavioral investing\u00a0 is some of the most insightful I\u2019ve ever seen.)<\/p>\n Grantham is the chief investment strategist of Grantham Mayo Van Otterloo (GMO), an investments firm with more than $100 billion under management.\u00a0 He\u2019s also one of those rare managers who is not afraid to be a voice in the wilderness.\u00a0 Virtually alone among large money managers, Grantham steadfastly refused to get caught up in the 1990s tech bubble.\u00a0 His principled stand lost him nearly half his assets under management due to client defections, but those that stuck with him did well in the bear market that followed.<\/p>\n A decade later, he voiced concerns again about bubbles forming in the real estate and financial sectors\u2026and we all know how those turned out.<\/p>\n But lest anyone accuse him of being\u00a0 a \u201cperma bear,\u201d Grantham was pounding his fist on the table immediately after the 2008 meltdown telling investors to buy when everyone else was too terrified to move.\u00a0\u00a0<\/p>\n Suffice it to say, this is a guy who has had a good grasp on the market conditions of the past several years.\u00a0 He\u2019s someone you ought to listen to.<\/p>\n With that said, let\u2019s take a look at Mr. Grantham\u2019s top five stock holdings as of his firm\u2019s SEC filings, as reported by GuruFocus<\/a>.<\/p>\n