I like to see top-line growth as an indication that growth is sustainable, and I look for a high earnings before interest and taxation (EBIT) margin to point to a competitive moat (though some companies with low margins also have moats). Teradyne shareholders can take confidence from the fact that EBIT margins are up from 23% to 28%, and revenue is growing. Ticking those two boxes is a good sign of growth, in my book.