I don't borrow shares and try to catch a falling knife, so in other words, putting a sell order and then profiting from those drops. At least not borrow shares in my share trading account. I tried doing that before and suffered quite badly before but I have learnt to hold derivatives I own through my CFD account and have made a decent return. CFD is riskier than shares, but the fees and interests are tax deductible and the rewards are high vs shares where they are not as rewarding. I can go long in CFDs.