Also sometimes there's an economy of scale that makes it better for a company to sell shares than to slowly grow size. Or there's a risk of competition unless they're quick. But having made excuses for them, I would never buy into an IPO. Well at least I would never buy in as anything other than a short term trader. And on the other hand, what's the saying? Ah, here it is: "Never name the well from which you will not drink."