What Are Commodities?

What could you drop on your foot?

Commodities are the raw materials that keep the global economy moving. Unlike stocks—which represent ownership in a company—or bonds—which represent debt—commodities are physical stuff. Things you can hold, move, trade, and consume. Oil, wheat, copper, gold, natural gas. Things you can actually drop on your foot and feel.

Gold bar vs. Apple stock

Here's the fundamental difference: When you own a share of Apple, you own a fractional claim on Apple's future earnings. The share's value depends on what investors think Apple will earn tomorrow, next year, and beyond. It's abstract. It's a bet on the future.

A gold bar is different. Its value exists independent of opinion. Gold is gold—it doesn't matter if the company is struggling or thriving because there is no company. The bar will always be gold. People have valued it the same way for 3,000 years because it's scarce, durable, and universally recognized. When you own gold, you own a tangible thing whose value is rooted in scarcity and use, not in projected cash flows.

Commodities occupy this tangible space. They're inputs to production, stores of value, and sometimes direct consumer goods. Their prices are determined by supply and demand at a fundamental level—how much exists right now and how much people need right now.

Oil and everyday prices

Commodities touch your life in ways you probably don't see. Take oil. When crude prices spike, refineries pay more to turn it into gasoline. Gas stations raise pump prices within days. Your commute gets more expensive. Airlines raise ticket prices. That price at the pump is a direct, visible line from commodity market to your wallet.

This ripple extends further. Expensive oil means expensive fertilizer (made from oil derivatives), which means farmers' costs rise, which means grain prices rise, which means bread costs more. A commodity boom or bust echoes through every economy.

Copper works differently but equally revealing. When construction cranes disappear from city skylines and factories stop humming, copper demand falls. Smart investors watch copper prices because they signal recession before official statistics confirm it. Copper is called the "metal with a PhD in economics" for good reason—its price is a leading indicator of global economic health.

Common mistake

Many people think commodities are only things you find in mines or drill from the ground. In reality, commodities include agricultural products (wheat, soybeans, coffee), livestock (cattle, hogs), and energy products (natural gas, coal). Some even include financial instruments. The common thread isn't geology—it's fungibility. One barrel of oil is indistinguishable from another. That's what makes it a commodity rather than a unique good.

Next

Coming up: How commodity markets actually work and why they're so much larger than the underlying physical trade.