How Do You Review Your Investment Portfolio? A Step-by-Step Checklist (2026)

What do you need before you start?

One list of everything you own. Gather the latest statement for each account: your current workplace plan, plans from earlier jobs, IRAs, any health savings account you invest, taxable brokerage accounts, and company stock or employee stock purchase shares. A fund that looks sensible in one account can duplicate something you already hold in another, and you only see that with the full list.

For each holding, note the account type, the quantity and the current value. For taxable accounts, also note each purchase date and cost, because those decide the tax if you sell. Finally, write down the target mix you meant to hold. If you never set one, the review is a good time to decide on one, or to ask a professional to help you set it.

What does the review cover, step by step?

Step 1: Is your mix of stocks, bonds and cash still on target?

Add up each asset type across all your accounts and compare the result with your target. Investor.gov says the right allocation depends largely on your time horizon and your ability to tolerate risk, and that no single model is right for every goal. It also notes that a portfolio heavy in stocks would be inappropriate for a short-term goal.

Keep two questions apart. Drift is when the market moves your mix away from a target that still fits; Investor.gov's example is a portfolio meant to be 60% stocks that reaches 80% after a rally. A target change is when your life changes: Investor.gov says the most common reason to change an allocation is a change in time horizon, followed by changes in risk tolerance, financial situation or the goal itself. A hot or cold market is not on that list.

Step 2: How concentrated is your portfolio?

Rank every position by its share of your total, across all accounts. Investor.gov says a stock portfolio isn't diversified if it holds only four or five individual stocks, and that you'd need at least a dozen carefully selected stocks to be truly diversified. Company stock deserves a separate look, because your paycheck already depends on the same employer.

Funds can concentrate you too. Investor.gov points out that a fund focused on one industry sector doesn't give instant diversification. Two or three broad US stock funds that track similar indexes can mean owning the same large companies several times, so compare their top holdings before counting them as separate bets.

Step 3: What are you paying in fees?

List the expense ratio of every fund, any advisory fee and any account fee. Investor.gov's illustration shows why: a hypothetical $100,000 investment growing 4% a year for 20 years ends at about $208,000 with a 0.25% annual fee, about $198,000 at 0.50% and about $179,000 at 1.00%.

FINRA's Fund Analyzer lets you look up and compare mutual fund and ETF costs for free. Investor.gov also suggests asking how much an investment has to rise before you break even, and asking any professional you pay how they are paid: by commission, by the assets they manage or another way.

Step 4: Does your reason for owning each stock still hold?

This step applies to stocks you chose yourself; index funds don't need one. For each stock, write one or two lines on why you own it and what would show you were wrong. Then read what the company has said since you last looked: the latest 10-Q or 10-K, any 8-K current reports, and the most recent earnings release.

Useful questions: did revenue and margins move the way your reason needs? Did guidance change? Were risk factors added or reworded? Did insiders file Form 4 sales out of their usual pattern? A thesis that no longer holds is a question to answer, not an instruction. You might find a new reason, conclude the old one was wrong, or decide the position no longer fits your plan. The decision stays yours.

Step 5: Which tax lots would a sale touch?

Skip this step for trades inside a 401(k). The IRS says 401(k) distributions, including earnings, are taxed when they are paid out (qualified Roth distributions are the exception), so moving money between funds inside the plan doesn't create a capital gain.

In a taxable account, each purchase is a separate lot with its own date and cost. The IRS treats a gain or loss as long-term if you held the asset more than one year and short-term if one year or less, and taxes net short-term gains at ordinary income rates. IRS Publication 550 says that if you tell your broker which lot to sell at the time of the sale and get written confirmation, the basis is that lot's cost; if you can't identify the shares, the ones you bought first are treated as sold first. Certain mutual fund shares can use an average basis instead.

One more rule to know: a wash sale. If you sell at a loss and buy substantially identical securities within 30 days before or after the sale, the IRS doesn't let you deduct that loss. These rules have exceptions, so treat this as background and check the details with IRS publications or a tax professional.

Step 6: Do you need to rebalance, and how?

Rebalance when drift is large enough that the portfolio no longer carries the risk you chose. Investor.gov describes three ways: sell some of what is overweight and buy what is underweight, buy more of the underweight asset with new money, or point ongoing contributions at the underweight category until the mix is back.

Investor.gov also says to check, before you start, whether your method will trigger transaction fees or taxes. That is why many investors look first at new contributions and at trades inside tax-deferred plans, where moving between funds isn't taxed, before selling appreciated lots in a taxable account.

Step 7: How often should you review your portfolio?

Investor.gov says you can rebalance by the calendar, with many experts suggesting every six or twelve months, or when an asset class moves more than a percentage you picked in advance, and that rebalancing tends to work best when done relatively infrequently. A full review on the same schedule, plus one after a major change such as a new job, a move, a marriage, a child or an inheritance, covers most situations.

Individual stocks are the exception to a once-a-year rhythm. Companies report every quarter and file 8-Ks whenever something material happens, so the thesis check in step 4 is easier to keep current between full reviews, as each report arrives.

Which tools help with a portfolio review, and what do they cost?

When is another tool or a professional the better choice?

• • You want every account in one view without typing it in: Astor links brokerage accounts. Ecomerate's brokerage connections are not live yet.
• • Your portfolio is mostly funds: the fee and allocation steps matter most, and FINRA's Fund Analyzer plus your plan's own tools may be all you need. A target-date fund's managers handle allocation and rebalancing inside the fund, according to Investor.gov.
• • You hold a lot of company stock, have equity compensation, are near retirement or have tax and estate questions: a registered investment adviser or CFP professional can plan around your whole situation. Investor.gov says investment advisers are required to act in your best interest.
• • You want help choosing an allocation in the first place: Investor.gov suggests a financial professional can help set an initial mix, and recommends checking their credentials and disciplinary history first.

Where does Ecomerate fit?

Ecomerate is an AI research analyst you text in iMessage, and its fit is narrow: the stocks you picked yourself. Text it what you own and why, for example "I own 50 NVDA at $120 because of data-center demand", and it remembers both. It checks new 10-K, 10-Q and 8-K filings and earnings for those stocks against your reasons and texts you when something touches them, quoting the passage, with about three proactive texts a week by default. Ask "write me a deep thesis on NVDA" and a PDF research note arrives covering your position, the bull and bear case, earnings against estimates, what would change the view and what to watch next.

It covers US-listed stocks and ETFs. It doesn't link your accounts yet, set your target allocation, plan your finances or give tax advice, and it never tells you to buy, sell or hold. For the other six steps, use the official tools above or a professional.