Subject: IV versus BV
IV tracks BV extremely well. Here are John Kish's IV estimates by two models, DCF and two-column, over the period 1981-2014, plotted against BV. Here, too, are Whitney Tilson's IV estimates (two column) over the period 2003-2025, also plotted against BV. In all three cases r^2 is 0.99.

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