E72: Top 10 Investing Mistakes That Keep CRNAs & NPs Working Longer Than They Need To

Top 10 Investing Mistakes That Keep CRNAs & NPs Working Longer Than They Need To

You’ve built an incredible nursing career. Whether you’re a nurse practitioner, clinical nurse specialist, or CRNA, you’ve worked long shifts, held everything together in high-stress situations, and poured yourself into your patients and your family.

If you’re a high earner making $120,000 as an NP or $200,000+ as a CRNA, you probably think your investment strategy is solid. You’ve been saving in your 403(b), maybe maxing it out every year. You’ve got money in taxable accounts. You should be on track for retirement, right?

Not so fast.

The $2 Million Problem

A CRNA couple had been saving diligently for 25 years. They had nearly $2 million in their 403(b) accounts. They thought they were doing everything right.

When they sat down to run the retirement numbers, they discovered something shocking: because of the investment decisions they’d made over the years, they’d need to work an extra five to seven years to reach the same retirement lifestyle they could have had with a better strategy.

That’s five to seven more years of night shifts. Five to seven more years of being on call. Five to seven more years of the physical and emotional demands that come with being in the industry, all because of investment mistakes they didn’t even know they were making.

The problem wasn’t that they weren’t saving. They were saving plenty. The problem was how they were investing.

The Hidden Cost of Investment Mistakes

If you’re making these investment mistakes, you might be adding years to your working life without even realizing it. You might think, “I’ll work until I’m 60, then I’m done.” But poor investment decisions could mean you need to work until 65 or 67 to reach the same level of financial security.

That’s the real cost of these mistakes. Not just lower returns, but more years away from the retirement you deserve. Most nurses don’t discover these problems until it’s too late to fix them easily. No one prepared them for these pitfalls. No one explained what matters in investing. No one showed them a better way. But knowing about these mistakes is the first step to getting on track.

Mistake #1: Trying to Time the Market

“I’m waiting for the market to drop before I invest.”

“I moved everything to cash because I think we’re headed for a recession.”

“I’ll get back in after things settle down.”

Sound familiar?

98% of investment performance comes from behavior, not from what you know. The single worst behavior is trying to predict when to get in and when to get out of the market.

You can’t do it. No one can do it consistently.

Studies show that investors who try to time the market typically underperform by 3 to 4% per year compared to investors who just stay invested. That might not sound like much. Over 30 years on a $500,000 portfolio, that 3% difference costs you nearly $1 million.

If you’re sitting on cash right now, waiting for the right time, you’re making one of the costliest mistakes possible.

Mistake #2: Letting Emotions Drive Your Decisions

Emotions impact investing in many ways:

• Panic selling when the market drops
• Getting greedy and buying stocks because everyone’s talking about them
• Checking your portfolio every day and making changes based on short-term moves

Most of the issues come from decisions people make because of emotions rather than what they picked or what they didn’t pick. When you let emotions drive you, you sell low and buy high, the exact opposite of what you should do.

The solution: Have a plan. Stick to the plan. Don’t look at your portfolio every day. If you’re investing for retirement 20 years from now, what happens in a single day, month, or even year frankly doesn’t matter.

Mistake #3: Not Having Proper Diversification

Many nurses hold portfolios that look like this:

• 70% in large-cap US stocks
• 20% in bonds
• 10% in cash

Or worse, everything in a target date fund that’s essentially just tracking the S&P 500. That’s not diversification. That’s concentration risk.

Real diversification means:

• International stocks
• Emerging market stocks
• Small-cap stocks
• Real estate investment trusts (REITs)
• Different bond types

95% of investment performance comes from asset allocation. Not from picking the right individual stocks, not from timing the market, but from how you divide your money across different asset classes.

Most nurses have way too much concentrated in large US companies. When tech stocks drop, your whole portfolio drops. When large-cap growth underperforms, your whole portfolio underperforms. That’s a concentrated bet you didn’t even know you were making.

Mistake #4: Paying Excessive Fees and Costs

Do you know what you’re paying in investment fees?

Most nurses have no idea. They might know their advisor charges 1%, but they don’t realize the mutual funds they’re in charge another 1%. Or they’re in actively managed funds with expense ratios of 0.75% or 1% when they could be in index funds that charge 0.05%.

A 1% difference in fees on a $1 million portfolio over 30 years costs you more than $600,000. That’s not a typo. Over half a million dollars.

What affects performance more than anything else? Costs. You need the least expensive, most properly diversified asset allocation you can get. Not the flashiest, not the one with the most marketing, but the cheapest one that does the job.

Mistake #5: Chasing Past Performance

“This fund has returned 15% for the last five years!”

Great. What does that tell you about the next five years? Absolutely nothing.

Funds that have had the best performance in the previous five years are statistically more likely to underperform in the next five years.

Why? Because performance attracts attention. Attention brings money. Money makes the fund harder to manage. And whatever made the fund successful, usually a specific market condition or sector, stops working.

About 80% of actively managed funds underperform their benchmark over time. The ones that do outperform? Most of them don’t keep doing it.

Chasing performance is a losing game. Nurses do it all the time because it feels good to invest in winners, until those winners become losers, and you’ve bought them at the top.

Mistake #6: Not Reinvesting Dividends

This one is simple: nurses who take their dividends as cash instead of reinvesting them.

If you’re 35, 45, or even 55 years old and you don’t need that dividend income right now, you should be reinvesting it automatically. Dividends reinvested buy you more shares. More shares generate more dividends. That’s compound growth in action.

If you’re taking dividends as cash and spending them, or even just letting them sit in a money market, you’re giving up years of growth. Of course, if you’re retired and living off your portfolio, it’s a different story. But if you’re still working and building wealth, reinvest those dividends.

Mistake #7: Ignoring Tax Efficiency

Most nurses focus on investment returns. But what matters more? After-tax returns.

Nurses with great investment performance often end up with mediocre results because they didn’t think about taxes:

• Short-term trading in taxable accounts means paying ordinary income tax rates on gains (that could be 30 to 40% depending upon your bracket)
• Holding the wrong types of investments in the wrong types of accounts means you’re paying more tax than you need to
• Not doing tax loss harvesting when you have losses means you’re missing opportunities to reduce your tax bill

Most nurses think tax planning is something you do in April. No. Tax planning is something you do every time you make an investment decision. Where you hold your investments matters. When you sell matters. What you do with losses matters. Working with someone who understands tax planning can save you tens of thousands of dollars.

Mistake #8: Active Stock Picking Instead of Evidence-Based Investing

If you’re picking individual stocks, you’re probably losing money compared to what you could be making.

The evidence is overwhelming. About 80% of professional investors who do this for a living and have teams of analysts and expensive software underperform simple index funds.

What makes you think you’re going to be in the top 20%? Evidence-based investing uses academic research to construct portfolios. Not predictions, not hot tips, not trying to find the next Amazon, but research, evidence, and data.

The approach: avoid concentration in popular sectors, reduce risk, target higher expected returns based on decades of market data.

That’s how you build wealth. Not by trying to pick the next big winner.

Mistake #9: Not Rebalancing Your Portfolio

Let’s say you decide you want 70% stocks and 30% bonds. Good start. Then stocks have a great year. Now you’re at 80% stocks and 20% bonds. What do you do? Most people do nothing. They just let it ride. That’s a mistake. Now you’re taking more risk than perhaps you intended. When stocks drop, which they will eventually, you’re going to drop harder than you planned for.

Rebalancing means periodically selling some of what’s done well and buying more of what hasn’t. It forces you to sell high and buy low. It keeps your risk level consistent. One of the most important but most overlooked parts of investing.

If you’re not rebalancing at least once per year, you’re making a mistake.

Mistake #10: Investing Before Addressing Financial Basics

Many nurses put money in the market but still have:

• Credit card debt
• No emergency fund
• Inadequate insurance
• No estate plan

Investment returns don’t matter if a financial emergency forces you to sell your investments at the worst time.

Before you invest a dollar, you need:

• An emergency fund with three to six months of expenses
• High-interest debt paid off
• Adequate insurance to protect your income and family
• A will and beneficiary designations that reflect your wishes

Only then should you start building an investment portfolio, because investing is about building wealth, not recovering from financial emergencies.

Now What?

These mistakes happen because knowing where to focus in investing can feel impossible without context. Behavior matters more than stock picking. Real diversification looks different from what most people realize. Low costs compound into massive differences over time.

If you’re making any of these mistakes, don’t panic. Most of them can be fixed:

• Trying to time the market? Stop. Get invested. Stay invested.
• Not diversified? Start building a properly allocated portfolio.
• Paying high fees? Move to lower-cost options.
• Picking individual stocks? Consider moving to evidence-based funds.
• Not rebalancing? Set a reminder to do it annually.

Investing requires discipline. Have a plan and stick to it even when uncomfortable. Long-term success comes from avoiding mistakes, not making brilliant predictions.

Financial planning extends beyond picking investments. Understanding how investments fit into your entire financial life, interact with taxes, support retirement goals, and need to change as you age makes the difference between working longer and retiring when you choose.

You’ve spent your entire career taking care of everyone else: your patients, your families, your communities. You deserve a retirement that comes sooner rather than later. You deserve to stop working when you want to, not when you have to.

Avoiding these 10 mistakes? That’s how you get there.

Ready to see how Oak Capital Advisors can help? Schedule a meeting.

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