A “Supertanker” is a colorful term, popularized by the legendary investor Warren Buffett, describing a particular type of investment opportunity. It refers to a large, high-quality, and established company that is temporarily facing a single, major, but solvable problem. This issue, often splashed across news headlines, causes widespread panic among investors, leading them to sell off the stock indiscriminately. As a result, the company's share price plummets far below its true underlying worth, or intrinsic value. The analogy is of a giant oil tanker that is slightly off course. To a short-sighted observer on a speedboat, it looks like an impending disaster. But the patient value investing practitioner sees the bigger picture: the vessel is powerful, the crew is capable, and a small rudder adjustment is all that's needed to get it back on its profitable journey. The key is that the problem is a one-time, manageable crisis—not a fundamental flaw that's permanently damaged the business.
Not every struggling giant is a supertanker; many are just sinking ships. True supertankers share a distinct set of characteristics that an astute investor can learn to identify.
The most critical skill in this type of investing is distinguishing a temporary stumble from a terminal decline. A supertanker has a fixable issue, whereas a sinking ship (often called a value trap) has a permanently broken business model. To tell them apart, ask yourself these questions:
A supertanker is a great business on sale. A value trap is a mediocre or failing business that just looks cheap.
The textbook case of a supertanker investment is Warren Buffett's investment in American Express in the 1960s. A division of American Express was caught in a massive fraud when a client, Allied Crude Vegetable Oil, defaulted on loans secured by barrels of salad oil that turned out to be mostly water. Wall Street panicked, fearing American Express would be liable for colossal losses and face bankruptcy. The stock price was cut in half. Instead of panicking, Buffett did his homework. He visited restaurants and banks, observing that customers and merchants hadn't lost faith. People were still using their American Express cards and traveler's checks. The core payments business—the company's powerful moat—was completely unaffected by the scandal in the separate warehousing division. He concluded the problem was a one-time, survivable financial hit. He invested 40% of his partnership's capital into the company and made a fortune as the stock recovered.
If you believe you've found a supertanker, the strategy is straightforward but requires immense discipline.