International Value Advisors recently cut its stake in Annaly Capital Management – the nation’s largest mortgage real estate investment trust – by roughly half, a development that could be repeated by other investors as rising rates cause new concerns about MBS prices. At year-end, International owned 4.55 percent of Annaly compared to 9.60 percent a year earlier. Annaly’s largest investment is in agency MBS, of which it owned $73.5 billion at Sept. 30. The publicly traded REIT is...