Markets McCullough: My Latest S&P 500 Levels (and a Cautionary Note on Illegally Marking Up Your Book) Posted on April 1, 2015 by johnbarleycorn12 McCullough: My Latest S&P 500 Levels (and a Cautionary Note on Illegally Marking Up Your Book). Share this: Share on X (Opens in new window) X Share on Facebook (Opens in new window) Facebook Like Loading...