Operating LeverageThin moat

Operating leverage is the mathematical heart of why gold-mining stocks move so much more violently than the gold price itself. A mine's costs are largely fixed by physics and geology: the same rock must be moved, the same mill run, the same workforce paid, whether gold sells for $2,000 or $4,000. So when the price rises, almost the entire increase drops through to profit. A 50 percent rise in the gold price can double or triple a low-cost miner's margin per ounce.

This is exactly what played out in 2025 and 2026. As gold surged past $4,000 and Barrick's realized price reached $4,823 an ounce in the first quarter of 2026¹, its AISC rose only modestly, and the margin — the gap between the two — widened dramatically. The reverse is as quick: in the second quarter the realized price fell 8% to $4,417 and net earnings fell 24%². Net earnings and free cash flow more than doubled; the company launched a multi-billion-dollar buyback on the strength of it. Operating leverage turned a rising gold price into a flood of cash.

But leverage cuts both ways, and this is the point that matters for moat. The same mechanism that multiplies profits on the way up multiplies pain on the way down: when gold falls, costs stay stubbornly put and the margin collapses far faster than the price. Operating leverage is not a moat; it is amplification. It makes Barrick a high-torque bet on a price the company cannot influence — thrilling at the top of the cycle, punishing at the bottom, and the opposite of the steady, self-protecting economics a real moat provides.