How Do You Know When You Have Done Enough Research?

How do you know when you have done enough research into a stock to make it a substantial position in your portfolio? Gado ad that answer prepared it is, i actually didn't but it did sound like had of ed and it sounded like ol reting. Said the fang bang bang bang ho hit me with another oneha ha, ha, ha ha. O for it again, if we'aif we've answered it already? We'll answer it again. Ah, so an any time of business is, there's only in my portfolio that are above ten per cent in size, maybe two or three of them. And they're all business is that i started researching well over...