Swaps

A swap is a bilateral contract to exchange two streams of cash flows over a defined term, calculated by reference to a notional amount that is never itself exchanged. That last detail is the whole trick: a $50 million interest-rate swap moves no $50 million. The notional is a multiplier, and the only money that changes hands is the net difference between the two legs on each payment date.

Swaps are the largest derivatives market in the world by notional and the one retail investors almost never touch directly — so the honest framing for this book is not “here is how to trade swaps.” It is: here is what swaps do, where they are already inside products you own, and the one structure (the total return swap) that a genuinely wealthy household will be offered by a private bank and needs to be able to evaluate.