tranche
A tranche is the ceremonial slicing of colossal debt or asset pools into bite-sized portions no one actually wants to claim responsibility for. The name may sound elegant in French, but it’s essentially a magic show of finance that nobody really comprehends. Investors gawk at the prettily color-coded rankings, intoxicated by numerical illusions that may be nothing more than water on hot coals. At the slightest market tilt, these neat slices can trigger a domino effect of collapse—a modern financial contraption designed for spectacular ruin.