Status Quo Bias: Why Investors Prefer Doing Nothing Even When It Hurts

Machiavelli said it over 500 years ago: “Whosoever desires constant success must change his conduct with the times.” But here we are, centuries later, and most of us still prefer to just… not change anything.

Status quo bias is one of the simplest biases to understand. And yet it is incredibly powerful. People prefer things to stay the way they are. Even when change would clearly benefit them.

The Insurance Example That Says It All

Pompian starts with a brilliant real-world example from the early 1990s. New Jersey and Pennsylvania both reformed their car insurance laws and offered residents two options: a more expensive plan with broad rights to sue after accidents, and a cheaper plan with more limited rights.

Here’s the thing: the two plans had roughly equivalent expected monetary value. So the choice should have been about 50/50, right?

But it was not. In New Jersey, where the expensive plan was the default, 70% of people “chose” it. In Pennsylvania, where the cheap plan was the default, 80% stayed with that one.

Same options. Same population types. The only difference was which option was set as the default. And the default won overwhelmingly in both states.

This is status quo bias in its purest form. People do not really “choose.” They just accept whatever is already in front of them.

What Makes This Different from Loss Aversion

You might be thinking, “Wait, is not this just loss aversion? People are afraid of losing what they have?” Not exactly.

Pompian is careful to distinguish between the two. Loss aversion is about framing decisions in terms of gains and losses. Status quo bias is more like inertia. It does not depend on whether the change involves a loss or a gain. People just prefer things to stay the way they are, period.

That said, the two biases often work together. And when they team up with endowment bias (which we will cover next), the combination creates an extremely strong pull toward doing nothing.

Think of it like physics. A body at rest tends to stay at rest unless acted upon by an outside force. Status quo bias is the financial version of Newton’s first law.

The Inherited Stock Problem

The most common example of status quo bias in investing is the person who inherits a concentrated stock position. Imagine a grandson who inherits a big chunk of bank stock from his grandfather.

His portfolio is obviously underdiversified. His financial advisor tells him to sell some of that stock and spread the money around. But the grandson just… does not do it.

Why? Pompian identifies several reasons:

He does not understand the risk. He might not realize that if that one stock drops 50%, his entire wealth takes a massive hit. Diversification is not just a nice idea. It is insurance against catastrophic loss.

He is emotionally attached. The stock carries a connection to his grandfather. Selling it feels like betraying the old man’s memory. Even though grandfather probably would have wanted his grandson to be financially secure above all else.

He is scared of transaction costs. “But I will have to pay taxes! And commissions!” Yes. And in most cases, those costs are a tiny fraction of the potential losses from holding an underdiversified portfolio. Penny wise, pound foolish.

The Research

William Samuelson and Richard Zeckhauser (who coined the term “status quo bias” back in 1988) ran a clever experiment. They told subjects they had inherited a large sum of money and could invest it in one of four portfolios with different risk/return profiles.

In the first trial, all four options were presented equally. No default.

In the second trial, subjects were told that their uncle had already invested the money in the moderate-risk portfolio. They could change it to any other option without penalty.

Guess what happened? The moderate-risk portfolio was far more popular in the second trial than in the first. Same options, same people, same scenario. The only difference was that one option was labeled as “what your uncle already chose.” And that made it the winner.

The Four Mistakes

Status quo bias leads to several specific investment errors:

1. Holding inappropriate assets. By doing nothing, you might end up with investments that do not match your risk tolerance or financial goals. You might be taking too much risk. Or too little. Either way, inaction is not the same as making a good decision.

2. Avoiding actions that might trigger losses. When status quo bias teams up with loss aversion, you get an investor who refuses to make changes because any change might lead to a visible loss. They would rather have a slow, invisible decline than make a decision that could potentially go wrong. Even if the expected outcome of action is much better than the expected outcome of inaction.

3. Emotional attachment to familiar holdings. You know that stock. You have watched it for years. It feels comfortable. But comfort is not a financial strategy. Sometimes the comfortable choice is the wrong choice.

4. Fear of transaction costs. Taxes and fees are real costs, sure. But they are usually small compared to the cost of holding an unbalanced or poorly performing portfolio. Paying a 2% commission to get out of a stock that drops 30% is a pretty good deal.

What To Do About It

Educate yourself about the real risks. The biggest weapon against status quo bias is understanding what doing nothing actually costs you. If someone shows you that your concentrated stock position could lose 40% of its value in a bad year, and connects that to actual lifestyle changes (no vacation this year, delayed retirement, downsizing your house), that makes the risk concrete and real.

Analyze the cost of inaction. Before you decide to “keep things as they are,” actually calculate what that decision costs over 5, 10, or 20 years. Compare it to what a diversified portfolio would likely return. Often, the numbers make the decision obvious.

Separate emotions from finances. If you are holding onto grandpa’s stock because of sentiment, that is understandable. But recognize it for what it is: an emotional decision, not a financial one. Maybe keep a few shares as a memento and invest the rest properly.

Do the math on transaction costs. Before using “but the taxes!” as a reason not to sell, actually calculate those taxes. Then compare them to the potential gains from a better-allocated portfolio. In most cases, the math strongly favors selling and rebalancing.

My Take

I think status quo bias is one of the sneakiest biases because it does not feel like a decision. You are not actively choosing to hold a bad investment. You are just… not doing anything. It feels passive and therefore harmless.

But not making a decision is a decision. Every day you choose not to rebalance your portfolio, you are actively choosing to keep it unbalanced. Every day you hold onto an inherited stock that does not belong in your portfolio, you are choosing concentration over diversification.

In the countries of the former Soviet Union, there is a saying roughly translated as “initiative is punishable.” People learned that doing nothing was safer than doing something. But in investing, doing nothing has its own costs. And they can be very high.

The hardest part about overcoming status quo bias is that it requires effort. You have to research, decide, act. And doing nothing is so much easier. But easy and right are not the same thing.

Previous: Self-Control Bias | Next: Endowment Bias

This is part of a series retelling “Behavioral Finance and Wealth Management” by Michael M. Pompian. Start from the beginning.