Archive · 13 Nov 2025

Conservatism Bias: How Past Beliefs Can Lead to Investment Losses

Conservatism Bias: How Past Beliefs Can Lead to Investment Losses

Imagine you really like a toy you got last year.

You think it's the best toy ever!

Then, your friend shows you a new, super cool toy that does amazing things.

But because you really love your old toy, you say, 'Nah, my toy is still the best!'

You might even ignore a grown-up telling you the new toy is better.

This is kind of like a grown-up problem called 'conservatism bias' when they are picking stocks to buy.

They do lots of homework on a stock and decide it's great.

But if they hear bad news about the company later, they might ignore it because they already decided the stock was good.

It's like Renu, who didn't listen to her brother-in-law about a bad company.

Later, her money in that stock went down.

A story about a ship captain named Anushree also shows this.

She remembered an island was a good place to dock, but the weather changed and it became dangerous.

She ignored her crew's warnings to go somewhere else, and her ship got caught in a big storm.

The lesson is that even if you think you know something is right, it's important to listen to new information and be willing to change your mind, especially with your money.

Sources