If you look at the investments made by other gurus in commodity companies recently Gurus pile into commodities and What gurus are saying about commodities, most of them have lost money except in Gold. Peabody energy stock price has gone down from 25 to 2 in six months, Arch Coal went down from 2 to 0.5, Freeport Mcmoran going down from 10 to 7 with as low as 4 in January. Carl Icahn even had to sell his Apple Inc holdings recently at 30% correction from top price and his company Carl Icahn Enterprises was downgraded recently Carl Icahn Enterprises in danger of downgrading to junk due to heavy loan to value ratio.
I am not trying to defend myself here but what I am saying is that the errors are part of human decision making and the three words "Margin of Safety" ensures survival. I do try to put enough margin of safety in everything I buy. One of the recent examples of this was my purchase of Shilp Gravures at INR 46. The company's share price went on to reach INR 116 a month back but since it got notice from GPCB (Gujarat Pollution Control Board) to shut down the plant GPCB Notice, the price came down to INR 63 which is still higher than my purchase price.
If I still have conviction about my investments in these companies, I can average down but for many the equation has changed. For Cairn, a merger is announced with Vedanta and not sure what promoter would do with the cash present on Cairn's balance sheet. The oil price have come down from $60 to $30 since I bought these shares impacting the profitability. Oil India made huge investment to buy Videocon's Oil assets in Africa OIL and OVL invests in Africa. The transaction was done at a time when Gas prices were hovering near $4 while they are trading at $1.8 now. So times change and so do equations.
Be safe, be prepared.