Here’s something most people don’t know about their own 401(k).
That target-date fund sitting in your account? It’s been selling your stocks and buying bonds every single year since you enrolled. Automatically. The industry calls it a Glide Path, and it’s running right now whether you know about it or not.
What they don’t tell you upfront is that it could be costing you hundreds of thousands of dollars — and that so-called safe autopilot may be falling further behind your actual cost of life every single year.
By the end of this article, you’re going to see something most employees never look at: the hidden cost sitting inside your retirement account. You’ll understand why playing it “safe” might actually be the riskiest thing you can do in a system that’s designed to make your money worth less every year. And this isn’t about retirement on a beach. It’s about whether work is still mandatory when you turn sixty.
I run a Registered Investment Advisor firm and I’ve studied how these Glide Path funds work. This is a structural analysis on retirement accounts — not financial advice. Review your plan documents and work with a qualified professional before making any changes.
The Macro Problem
To understand why the standard retirement playbook may be leaving money on the table, we have to start at the macro level.
The narrative Wall Street sells you goes something like this: contribute 15%, diversify, earn 6–8%, retire at 67. Clean. Simple. Repeatable.
But you’re not investing in a vacuum. You’re investing inside a system built on never-ending money printing — where the dollars you work hard to earn buy a little less every year.
The federal debt is around $40 trillion. Since 1976, a dollar has lost 82% of its purchasing power. And the target-date fund inside your 401(k) — right now — could be automatically shifting more of your money into bonds every single year. Bonds that promise to pay you back in more of those same shrinking dollars.
Let that sink in: real hourly wages have grown only 26% since 1976. Prices have gone up by over 470%.
That’s the outer layer. The real story is what’s happening inside your 401(k).
How the Glide Path Actually Works
Right now, there’s $5.2 trillion sitting in target-date funds across America. The average 401(k) balance is around $146,400 — and in many plans, these funds are the default option, which means a huge share of retirement money is effectively running on autopilot.
Here’s the mechanism. Quarterly or annually, an algorithm inside the fund sells a slice of your stock holdings and moves it into bonds. The idea is to reduce volatility as you get older and give you a smoother ride.
Sounds reasonable. But here’s the problem. As the glide path does its job, more and more of your portfolio gets shifted into lower-return assets — at exactly the same time inflation is eating away at your purchasing power. The technical term is a negative real return. The plain English? You’re losing ground, just slowly enough that you don’t notice.
I call it The Thin Middle. Not aggressive enough to compound real wealth. Not conservative enough to protect you when markets fall. Stuck in between — and 2022 showed exactly what that zone costs.
The Fed hiked rates at the fastest pace in forty years. Stocks crashed. Bonds — the assets your glide path had been steadily building — crashed too. Both sides of the portfolio fell at the same time. $450 billion in losses across target-date funds. The 2022 crash made headlines. What’s built into your 401(k) by default doesn’t — and it’s been running quietly ever since.
Half a Percent Is Not Harmless
Your target-date fund charges an expense ratio. According to Morningstar, the average sits at 0.36% for index-based funds — and up to 0.64% for actively managed ones. Sounds harmless. But let’s do the math.
Take a 30-year-old with $150,000 saved. $500 a month going in. A 7% annual return. And a fee of just 0.50%. Run that out to retirement at 65 —
$376,000. Drained by a fee. Not by a crash.
By half a percent. A number that sounds small. Compounding year after year, on autopilot. Paid to a product that was built for everyone. That number isn’t theoretical. It could be the difference between retiring at 62 — and sitting at your desk at 67 because you have to.
The Three-Part Fix
Now that you know what the problem actually costs — here’s the three-part playbook.
Pillar I: Stop the Glide
This one starts inside the account you already have. Most 401(k) plans let you change your investment elections — and when you go into that menu, you’ll find index funds: the S&P 500, total market funds, sometimes at fees as low as 0.03%. Some plans even have a Self-Directed Brokerage Option where you can own individual stocks directly inside the account.
One important note before you flip the switch: ditching the target-date fund for an all-stock portfolio means accepting that your balance is going to swing more. Corrections happen. Twenty, even thirty percent drawdowns are part of investing in stocks. The question isn’t whether that will happen — it’s whether you’ll hold when it does. Because the investor who stays put in a 7% fund beats the investor who sells a 10% fund at the bottom.
Pillar II: Own the Right Assets — in the Right Account
Most people only think about the first layer here. What you own matters. A bond is a promise to receive more dollars — dollars that historically buy less every year. A stock is ownership in a business that can raise prices with inflation. From 1976 to 2025, the S&P 500 delivered roughly 7% annually in real, inflation-adjusted terms. Treasuries? Closer to 1–2% in real terms.
But where you own it matters just as much.
Account TypeTax TreatmentWithdrawal RulesTaxableTax on every saleFlexible, but costlyTraditional 401(k) / IRATax deferred — bill waiting at retirementRMDs start at age 73Roth IRATax-free compoundingNo RMDs, no forced timeline
In a Roth, you keep every dollar you compound. Every year. No bill at the end — and no one telling you when to take the money out. The account wrapper isn’t a detail. It’s one of the most important decisions in your entire financial plan.
Now, if you’re a high earner, you may be thinking: I can’t contribute to a Roth — my income is too high. There’s a workaround. It’s called the Backdoor Roth, and it keeps the tax-free compounding advantage fully intact. I broke down exactly how it works in a previous video — The High Income Trap: Why Six-Figure Earners Feel Broke.
Pillar III: The Escape Hatch
Most people leave their old 401(k) sitting at a former employer for years. Sometimes forever. But when you leave a job, you have three strategic choices — and the right one depends on your overall plan, especially if you’re using the Backdoor Roth.
- Option 1 — Leave it where it is. You’re stuck with the old plan’s limited investment menu
- Option 2 — Roll it into your current employer’s 401(k). If your new plan allows it, this keeps the pre-tax dollars completely outside of any IRA and preserves a clean Backdoor Roth by sidestepping the Pro-Rata Rule
- Option 3 — Direct rollover into a Rollover IRA. Institution to institution, no taxes, no penalties, no limit on the amount. Done right, it’s completely invisible to your tax return in terms of taxes owed
Here’s why Option 3 is so powerful for most growth-oriented investors: inside that IRA, your investment menu explodes from a dozen pre-selected funds to essentially the entire market — individual stocks, ETFs, individual Treasury bonds, whatever you’ve actually researched and believe in. No more generic template built for the masses.
The caveat: if you’re planning to use the Backdoor Roth, weigh that extra flexibility against the Pro-Rata Rule impact. Run the exact numbers with your tax advisor before you pull the trigger.
The $620,000 Gap in Real Dollars
Let’s make this concrete. Take a 40-year-old with $146,000 in their 401(k), contributing an average of $10,000 a year as contribution limits rise over time. Twenty-five years until retirement. The only difference is the approach.
The target-date glide path — bond-heavy by 55, averaging 6% — reaches 65 with $1.18 million on paper. But after taxes and adjusting for 3% annual inflation, the real purchasing power is closer to $420,000.
A growth-focused individual stock portfolio, held in a Roth — no bond drag, no deferred tax liability — compounding at 9% reaches $2.18 million by 65. In today’s purchasing power, that’s around $1.04 million. More than double.
That’s a $620,000 gap in real, spendable retirement dollars. Not from a crash. From glide path drag, fee drag, tax drag, and inflation — running quietly in the background for 25 years while your statements showed everything looked okay.
And the gap at 65 isn’t even the worst part. The glide path portfolio has a high probability of running out of money by 78. The growth-focused, Roth-optimized approach keeps compounding at 85.
These are hypothetical projections for illustrative purposes only. Actual results will vary.
The Real Risk You Need to Manage
Before you go build this — the risk isn’t the drawdown. Markets have always recovered. The real risk is you, opening your brokerage app on a bad week, watching your balance down 30%, and hitting sell.
Here’s a practical fix: keep 6–12 months of living expenses in cash, completely separate from your investment accounts. That cash handles the volatility of life. The portfolio handles the volatility of markets.
The Final Verdict
If you’re maxing your contributions and still feel behind — if the number on your statement doesn’t match the effort you’ve actually put in — the architecture could be the problem.
There is a real cost to set it and forget it.
That’s why I built the Unindexed Fee Drag Auditor. Put in your balance and your fund’s expense ratio — it calculates your exact fee drag, your inflation gap, and your real purchasing power at 65. It’s free. Run your numbers. Link is in the description.
At Paraiba Wealth, we build growth portfolios for professionals using individual stocks — no target-date funds, no glide paths. If you want a second opinion on your current structure, there’s a Portfolio Audit application at this link.
Watch the full case study YouTube video here.
At Paraiba Wealth, we build growth portfolios for professionals using individual stocks — no target-date funds, no glide paths. If you want a second opinion on your current structure, there’s a Portfolio Audit application at this link.
For more case studies and deep dives, check out our YouTube channel here.
You can also follow us on YouTube, LinkedIn, X, Paraiba Wealth blog and subscribe to our email list.
If you’ve realized your net worth has outgrown a spreadsheet and a weekend retail strategy, Paraiba Wealth manages capital for high-net-worth families across the US and Asia, deploying growth architecture designed to accelerate your exit from the corporate treadmill. If you have a portfolio over $500,000, apply for a Portfolio Audit.
This article is for informational and educational purposes only. It is not financial advice. Please review your plan documents and consult a qualified professional before making any changes to your financial plan.