Ever feel like your wallet has a mind of its own? You set out to save, but somehow end up splurging on that fancy coffee machine or the latest gadget. Let’s delve into the psychological phenomenon known as behavioural confirmation and see how it might be influencing your financial decisions.
Behavioural Confirmation: The Sneaky Culprit Behind Your Wallet’s Woes
By Tom Worthington
This article is published on: 27th May 2025
What Is Behavioural Confirmation?
Behavioural confirmation is a type of self-fulfilling prophecy where our expectations about others lead them to behave in ways that confirm those expectations. In the realm of personal finance, this can manifest when we project our beliefs onto our spending habits, leading to outcomes that align with those beliefs—even if they’re detrimental.
Spending Habits: The Self-Fulfilling Cycle
Imagine believing you’re terrible at budgeting. This belief might cause you to avoid tracking expenses, leading to overspending, which then reinforces your initial belief. It’s a vicious cycle where your expectations shape your behavior, confirming your original assumption.
Similarly, if you think you’re a savvy investor, you might take on riskier investments without proper research, leading to potential losses that challenge your self-perception.
Investments: Confidence vs. Overconfidence
Believing in your investment prowess is great, but overconfidence can be costly. You might ignore warning signs or dismiss advice, thinking you know best. This can lead to poor investment choices, reinforcing the belief that the market is unpredictable, rather than acknowledging personal missteps.
Imagine believing you’re the next Warren Buffett after a couple of successful trades. This mindset, while empowering, can sometimes lead investors astray. Overconfidence bias is a well-documented phenomenon in Behavioural finance, where individuals overestimate their knowledge, underestimate risks, and exaggerate their ability to create returns.
Initial Success: An investor experiences early gains, attributing success solely to personal skill.
- Increased Risk-Taking: Buoyed by confidence, the investor undertakes riskier investments without thorough analysis.
- Neglecting Diversification: Believing in their ability to pick winners, the investor concentrates holdings, ignoring the benefits of a diversified portfolio.
- Ignoring Contradictory Information: The investor dismisses data or advice that challenges their beliefs, leading to potential blind spots.
- Potential Losses: Without proper risk assessment and diversification, the investor becomes vulnerable to market downturns, leading to significant losses.
Real-World Implications
- Excessive Trading: Overconfident investors often trade more frequently, incurring higher transaction costs and taxes, which can erode returns.
- Underestimating Risks: Believing they can predict market movements, these investors may overlook potential pitfalls, leading to investments in volatile or unsuitable assets.
- Confirmation Bias: Overconfident individuals tend to seek information that supports their views, ignoring evidence to the contrary, which can reinforce poor investment choices.
Mitigating Overconfidence
- Seek Diverse Perspectives: Engage with financial advisors or peers to gain different viewpoints and challenge personal assumptions.
- Implement Checklists: Before making investment decisions, use a checklist to ensure all factors, including risks and alternatives, are considered.
- Embrace Humility: Recognize the limits of personal knowledge and remain open to learning and adapting strategies.

Breaking the Cycle
To combat Behavioural confirmation:
- Self-awareness: Regularly assess your financial beliefs and challenge negative assumptions. Don’t start saving tomorrow, start saving today.
- Seek feedback: Discuss financial decisions with trusted individuals to gain different perspectives. This is exactly what a financial adviser can help you with.
- Stay open to options presented to you.
- Set realistic goals: Establish achievable financial objectives to build positive reinforcement loops.
Think of your financial beliefs as that friend who insists they’re bad at directions. Every time they get lost, they say, “See? I told you!” But maybe, just maybe, if they used a map or GPS, they’d find their way. Similarly, by challenging our financial self-perceptions and seeking guidance, we can navigate towards better financial health.
At the Spectrum IFA Group we can help you by being your GPS through the financial world and design your bespoke road map to make sure we you get to where you want to go.