Bruno Koba
How to Actually Review Your Investment Portfolio (Without a Financial Advisor)
You connected your brokerage account at some point, picked some funds, and then... moved on with your life. Maybe it was six months ago. Maybe it was two years ago. The market has moved, your income has changed, and somewhere in the back of your mind you know you should probably check on things, but you're not sure what you're even looking for.
That's the situation most investors in their 20s and 30s find themselves in. Not because they're bad with money, but because nobody ever taught them what a portfolio review actually involves. It sounds like something a wealth manager does in a mahogany office. In reality, it's a structured check-in that takes about an hour and can meaningfully change your financial trajectory.
When to Review (and How Often)
A full portfolio review should happen once a year. That's the minimum viable cadence. A common choice is January, because it pairs with tax prep and a natural tendency to reflect on the prior year.
Beyond the annual review, certain events should trigger an off-cycle check: a major raise, a job change, getting married, having a kid, buying a home, or receiving a windfall.
Quarterly check-ins are fine, but resist the urge to make changes every time you look. The goal of frequent review is awareness; the goal of the annual review is action.
Step 1: List Every Account
Before anything else, get a complete inventory. Most people underestimate how fragmented their portfolio has become.
Current employer 401(k)
Old 401(k)s from previous jobs (often forgotten)
Roth IRA or traditional IRA
HSA (if invested)
Taxable brokerage
Vested RSUs or ESPP shares
Crypto holdings
Write down account type, custodian, and current balance. This is the single most useful artifact of the whole review.
Step 2: Check Your Asset Allocation
Asset allocation is the mix of stocks, bonds, and cash across your entire portfolio, not per account. It's the single biggest driver of long-term returns and risk.
Compute the aggregate: what percentage of your total investable assets is in equities, fixed income, and cash? Compare that to a target appropriate for your age and risk tolerance. Common rules of thumb for someone in their 20s or 30s land around 80% to 90% equities, with the rest in bonds and cash.
A portfolio that's 100% cash at age 28 is carrying inflation risk, not avoiding risk. A portfolio that's 100% equities without an emergency fund is carrying liquidity risk. Match the allocation to your actual timeline.
Step 3: Audit Concentration Risk
Concentration risk is when too much of your portfolio depends on a single position, sector, or company. This is where tech workers tend to get quietly wrecked.
Single-stock concentration. No one position should exceed 10% to 15% of total portfolio value. If you have vested RSUs in your employer, this is almost certainly your biggest concentration. Our piece on RSU tax strategies covers how to diversify tax-efficiently.
Sector concentration. A portfolio dominated by tech ETFs (QQQ, VGT, XLK) still carries substantial sector risk. Above 30% to 35% in any one sector is worth addressing.
Geographic concentration. Most U.S. investors are massively overweight U.S. equities. A healthier split includes 15% to 30% international exposure.
Step 4: Check Your Fees
Fees compound in the wrong direction. A 1% annual fee can consume 20%+ of your lifetime returns.1
Broad index funds: 0.03% to 0.10% (good)
Target date funds: 0.10% to 0.25% (acceptable)
Actively managed funds: 0.75% to 1.25% (rarely justified)
Advisory fees on top of fund fees: 0.75% to 1.5% (evaluate carefully)
If you're holding legacy positions in high-fee actively managed funds without a specific reason, swapping for equivalent index exposure is usually a straightforward win.
Step 5: Verify Tax Efficiency
Tax-advantaged accounts (401(k), IRA): best place for high-turnover funds, bonds, and anything that generates ordinary income.
Taxable brokerage: best for tax-efficient index funds and long-term holdings. Avoid high-turnover active funds here; they create tax drag from capital gains distributions.
Roth accounts: prioritize your highest-growth assets. Every dollar of growth here is tax-free forever.
If you're holding a bond-heavy fund in a taxable brokerage while stocks sit in your Roth IRA, you have the location wrong. Swapping locations (not selling) can meaningfully improve after-tax returns.
Step 6: Confirm It Still Matches Your Goals
Step back from the numbers. Does this portfolio still serve what you're actually trying to do?
Has my timeline changed?
Have my goals changed?
Has my risk tolerance changed? (If the last drawdown made you lose sleep, you may be more aggressive than you can actually tolerate.)
Goals and timelines should drive allocation, not the other way around.
Step 7: Rebalance If Needed
If your allocation has drifted more than 5 percentage points from target, rebalance. Sell what's overweight, buy what's underweight.
Do this first in tax-advantaged accounts (no tax consequence). In a taxable brokerage, prefer rebalancing by directing new contributions toward the underweight category rather than selling appreciated positions.
Our guide on 401(k) rebalancing covers the mechanics in more detail.
Common Mistakes to Watch For
Overlapping ETFs. Holding VOO + VTI + QQQ often means you own the same large-caps three times. Consolidate.
Ignoring old 401(k)s. Old employer accounts often sit in suboptimal default allocations. Consider rolling them into your current 401(k) or an IRA.
Cash drag. Money in a low-yield settlement fund is losing to inflation. Our piece on the cost of doing nothing covers this in detail.
Reacting to short-term performance. The fact that a fund underperformed for six months is not a reason to sell. Evaluate on strategy fit and fees, not recent returns.
The Bottom Line
A good portfolio review is a structured check-in, not a full rebuild. You inventory what you have, check the allocation, audit concentration and fees, verify it still matches your goals, and rebalance if needed. An hour, once a year, is often enough.
The point isn't to optimize every decision. The point is to notice when something has drifted far enough that it deserves attention, before a market move or a life change makes it expensive.
If you want the review done automatically and continuously, Astor connects to your brokerage and retirement accounts and gives you a real-time view of allocation, concentration, and fees. For the broader context, see the 10-step financial plan guide.
FAQ
How often should I review my investment portfolio?
Once a year is the minimum. Quarterly check-ins for awareness are fine, but avoid making changes more than once a year unless a major life event warrants it.
Do I need a financial advisor to review my portfolio?
Not for a standard review. A financial advisor adds the most value in complex situations: large equity compensation, estate planning, or pre-retirement income planning.
What's the single most important thing to check?
Concentration risk. A portfolio that looks diversified at the fund level can still be 60% exposed to U.S. large-cap tech if you're not careful.
Should I sell if something has dropped?
No, not based on price alone. Sell if the holding no longer fits your strategy, has unreasonably high fees, or creates concentration you don't want.
What if my portfolio review finds a lot of problems?
Prioritize and sequence. Fix concentration first (biggest risk), then fees (biggest ongoing cost), then allocation (biggest long-term return driver).
References
Understanding Investment Fees — FINRA
Mutual Funds and ETFs — SEC Investor.gov
Retirement Plans — IRS
Best Practices for Portfolio Rebalancing — Vanguard
This article is not personalized financial advice. For personalized guidance tailored to your situation, Astor is an SEC-registered investment advisor that provides personalized recommendations.