The Turkey Story: William O’Neil’s Timeless Lesson on Greed and Selling Discipline

Many years ago, William O’Neil, the founder of Investor’s Business Daily and one of the sharpest minds in modern investing, shared a simple parable he borrowed from Fred C. Kelly’s Why You Win or Lose.

It is known among traders as “The Turkey Story,” and although it was written nearly a century ago, it still captures the timeless psychology of greed, fear, hesitation, and the inability to act when it matters most.

🦃 The Turkey Story

A little boy was walking down the road when he came upon an old man trying to catch wild turkeys. The man had a turkey trap, a crude contrivance consisting of a big box with the door hinged at the top. This door was kept open by a prop to which was tied a piece of twine leading back a hundred feet or more to the operator. A thin trail of corn scattered along a path lured turkeys to the box. Once inside the turkeys found an even more plentiful supply of corn. When enough turkeys had wandered inside the box, the old man would jerk away the prop and let the door fall shut. Having once shut the door, he couldn’t open it again without going up to the box and this would scare away any turkeys lurking outside. The time to pull away the prop was when as many turkeys were inside as one could reasonably expect. One day he had a dozen turkeys in his box. Then one sauntered out, leaving 11. “Gosh, I wish I had pulled the string when all 12 were there,” said the old man. “I’ll wait a minute and maybe the other one will go back.” But while he waited for the twelfth turkey to return, two more walked out on him. “I should have been satisfied with 11,” the trapper said. “Just as soon as I get one more back, I’ll pull the string.” But three more walked out. Still the man waited. Having once had 12 turkeys, he disliked going home with less than eight. He couldn’t give up the idea that some of the original number would return. When finally only one turkey was left in the trap, he said, “I’ll wait until he walks out or another goes in, and then I’ll quit.” The solitary turkey went to join the others, and the man returned empty-handed.

The Deeper Lesson: Selling Into Strength, Raising Stops

The trapper’s mistake is every investor’s temptation: waiting for just one more turkey. We cling to the hope of squeezing out a little more profit or getting back what we’ve lost, and in doing so, we risk losing everything we already had.

O’Neil used this story to remind investors that the market rewards discipline, not perfection. Great investors know that strength is a selling opportunity, not an invitation to get greedy. They sell into strength, raise their stops, or trail them higher, protecting gains while others hesitate.

This is where the art and science of trading truly meet, finding that balance between letting winners run long enough for your system to have positive expectancy over time, while still having the discipline to take and protect profits before they vanish.

The right moment to act is rarely the one that feels comfortable; it’s the one that demands courage. Knowing when enough is enough, and pulling the string while you still can, is what separates a lucky trader from a skilled one.