The Engine Room of Profit
So, how does this alchemy work? Forget the sleepy business of taking deposits and lending money for mortgages. The real action happens on the trading floors. These are not your local high street branches. They are sprawling, high-tech arenas where fortunes are made and lost in the blink of an eye.
When markets become volatile, clients, from hedge funds to giant pension schemes, do not sit still. They scramble to adjust their positions, hedge against losses, or place bold new bets. Every single one of these actions requires a middleman, a market maker. And who do you think that is? Yes, the very same global banks. They facilitate this frantic activity, and for their troubles, they take a tiny slice of every transaction.
Think of it like a pub landlord during a nail-biting football final. The more frantic the action, the more pints are pulled. The banks widen their spreads, which is the difference between the buying and selling price, and the sheer volume of trades multiplies that wider margin into a windfall.