Dhiraj Sachdev of HSBC learnt his lessons very early when he bought his first few stocks about two decades ago. While he was working with India Infoline as an analyst in the early ’90s, he picked a hardware company HCL Infosystems, where he went on to lose money. “In a hardware business, I did not realise that the character of the business was entirely different. Hardware is a business characterised by falling prices on rising volume. So, you are constantly on a treadmill as a result of competition. One of the biggest learning was that you cannot get attached to a stock and hope for a recovery. You need to cut your losses when things are changing. If the facts change, you need to change,” says Sachdev.