Orchastrated end of day Auction, page-53

"If someone was substantially trying to drive down the price they would be short selling. Achieves the purpose of pressuring the price and making money at the same time."

That's the part I don't get - how does short selling make you money? You might sell a truckload of shares, and push the price down ... but then what? You still have to buy them all back to lock in any profit.

It's far riskier than buying a truckload of shares. If the stock lender isn't feeling particularly charitable that day, they can recall the loaned shares and then you are well and truly f'd.