So the manner in which Graham finds an edge of security is by contrasting the arrival on the stock he is examining to the security market returns. Which are 2 principle places you can put your cash. (How about we forget about land). So we'll state the stock you're taking a gander at is procuring $1 and the cost is $10. This gives it a p/e of 10. In the event that we isolate the income by the value we can see that the stock should give us an arrival around 10%. Presently suppose on the off chance that we put resources into bonds we get a 5% return. So the contrast between the stock and bonds is a 5% return. The edge of well-being would be viewed as half in light of the fact that our stock return is twofold that of our bond return. Regardless of whether the stock procures just 50% of what we expected, we will even now get a 5% return. Equivalent to the security market return. Along these lines, Graham says a half edge of well-being is a sufficient edge of security when putting resources into stocks. So that is a synopsis of ostensibly the greatest ideas in the wise financial specialist. On the off chance that you can adhere to simply these couple of exercises all things considered, you will beat different financial specialists. I've clearly rearranged the ideas here and the book has much more detail in it. Likewise consider buying in to the Blog on the off chance that you need to develop your insight in transit the best financial specialists contribute. Keep in mind don't let Mr. Market rule your contributing choices have an independent mind and contribute with an edge of security.