Where to Get a Second Opinion on Your Portfolio

A second opinion is a review of a portfolio you already own, by someone other than whoever helped you build it. It is diagnostic rather than custodial: nobody takes the account, nobody moves the money, and the output is an assessment rather than a management relationship. That distinction matters because the whole advice industry is priced around ongoing management, so the default answer to “can someone look at my portfolio” tends to be a proposal to run it for you.

The three questions that send people looking are almost always the same. Am I taking more risk than I think I am, usually because one position quietly grew into a third of the account. Am I actually keeping up with the market, or does it just feel that way because everything went up. And is what I own still right for when I need the money. None of those require hiring anyone permanently. See do I need a financial advisor for the separate question of whether the ongoing relationship is worth it.

Each route below is described on the same six fields, so you can scan across them: what it is, what you actually get, what it costs, how long it takes, who it suits, and one honest limitation.

Ranked for the person who wants their portfolio looked at, not managed. The order below assumes you want the most trustworthy opinion first, then the fastest and cheapest.

1. A fee-only hourly financial planner. The best answer if you want a genuine expert review. You are paying a fiduciary for their opinion rather than for custody of your money, which is the only arrangement where the reviewer has no stake in the conclusion. Costs money and takes weeks, which is the honest trade.
2. An AI portfolio assistant that reads your real holdings. PortfolioPilot for a structured, risk-scored critique; Walnut if you would rather ask questions in plain English and keep asking. Both connect read-only to the broker you already have, so the answers are about your actual positions rather than a hypothetical portfolio. Free tiers, minutes rather than weeks. Neither is a registered investment adviser, so neither is a substitute for the first option on anything that needs professional judgment.
3. Your broker's built-in analysis tools. Free, already populated with your data, and perfectly good for an allocation and overlap check if everything you own sits at one firm.
4. A robo-advisor's free portfolio review. Useful for the allocation and fee facts. Discount the verdict, because the tool exists to conclude that their portfolio beats yours.
5. A full-service AUM advisor's free review. Often thorough, but it is the opening move of a sales process, and the ongoing fee is the real product.
6. Community forums. Free and occasionally excellent, entirely unvetted, and impossible to hold accountable. Use it to collect objections, not conclusions.

Whoever or whatever reviews your portfolio, these are the six things that make it a real review rather than a restatement of your account screen. Use the list to judge what you get back.

• Concentration. How much of the portfolio sits in your largest positions, and whether one stock, sector, or theme dominates. Concentration is not automatically a mistake, but it should be a decision rather than a drift, and it usually happens by accident: a winner grows and grows until it is a third of the account. The question is not whether it has done well, it is what happens to you if it halves. See how to check portfolio concentration.
• Overlap between the funds you own. Two funds with different names frequently hold the same companies. An S&P 500 index fund, a total-market fund, and a technology fund can all be dominated by the same handful of megacaps, so a portfolio that looks diversified across five tickers can be far more concentrated in practice. A good review looks through the funds to the underlying holdings and sums the real exposure.
• Performance versus a benchmark like the S&P 500. The point is to separate skill from a rising tide. Compare the same window for both, include dividends, and account for money you added, because comparing a portfolio you kept funding against an index that received nothing flatters your result. Note that many broker connections do not pass cost basis, so tools often report a window return rather than realized profit and loss. See how to compare your portfolio to the S&P 500.
• Fee drag. The all-in cost: fund expense ratios plus any advisory fee, plus trading costs and product loads if you hold commission-based products. Fees are the one variable you control completely, and they compound against you every year the same way returns compound for you. A review that never mentions what you are paying has missed one of the few reliably fixable problems.
• Asset allocation versus your time horizon. Whether the stock, bond, and cash mix matches when you actually need the money. The same portfolio can be sensible for someone twenty-five years from retirement and reckless for someone two years out, and this is the dimension most self-reviews skip, because it depends on facts about your life rather than facts about your holdings.
• Tax considerations. What acting on any of the above would actually cost. Which lots carry large embedded gains, whether they are long or short term, which accounts are taxable versus tax-advantaged, and whether a change is better made gradually or through new contributions instead of sales. Plenty of portfolios that look wrong on paper are still worth leaving alone once the tax bill is priced in.

Software can measure a portfolio. It cannot do the parts of this job that require judgment about your life, professional accountability, or a fiduciary duty to you. Go to a qualified human being, and pay for it, when any of the following is in play.

• Tax planning beyond the obvious. Multi-year gain harvesting, unwinding a concentrated position with a large embedded gain, Roth conversion sequencing, equity compensation, or anything involving state tax. This is where a good professional pays for themselves outright.
• Estate planning. Trusts, beneficiaries, inherited retirement accounts and their distribution rules, and how assets pass to people. None of this is portfolio analysis and none of it should be handled by a chatbot.
• Life transitions. Retirement, divorce, a business sale, an inheritance, a serious illness, a new child. These change the goal, not just the allocation, and the right answer usually depends on information no tool has.
• Behavioural coaching. The measurable value many advisors add is stopping people from selling everything in a crash. If you know that is your failure mode, a human you have a relationship with is worth more than better analytics.
• Anything that needs a fiduciary. If you want a recommendation from someone legally obliged to act in your interest, you need a person or firm that carries that duty. Software tools that are not registered investment advisers, Walnut included, do not carry it and cannot substitute for it.

The distinction is drawn out further in AI versus a human financial advisor and when to hire a financial advisor.

The spread between the routes is enormous, and it maps almost exactly onto whether you are buying an opinion or buying a relationship. Figures below are typical and vary widely by provider and region; confirm before you commit.

• Hourly or project fee-only planner. Commonly around $200 to $500 an hour, or roughly $1,500 to $5,000 for a one-time written plan. You pay once, you own the output, and there is no ongoing claim on your assets. For a portfolio of any size this is usually the cheapest way to buy real expertise.
• Percentage of assets under management. Commonly around 1% a year, often declining as balances grow. The review is free; the management is what costs. The important thing to understand is that the fee is charged every year on the whole balance, so it compounds, which is why a percentage that sounds small is the most expensive model over decades. The arithmetic is worked through in how much a financial advisor costs.
• Robo-advisor management. Around 0.25% a year for a mainstream provider, with the review tools themselves free.
• Free tools and AI assistants. Zero, or a flat subscription for premium tiers. Flat pricing matters here: a tool that charges a fixed amount has no incentive that scales with your balance, which is a structurally cleaner arrangement for something whose only job is to tell you what you own.

One rule of thumb worth holding onto: be suspicious of any free review whose recommendation happens to be “let us manage this.” The review may still be factually good. The conclusion was decided before anyone looked.

The right route depends much more on your circumstances than on which tool is objectively best.

• You built your first portfolio and want to know if it is sensible. Do not pay for this yet. Your broker's free analysis tools or a free AI assistant that reads your holdings will answer the real questions (am I diversified, what am I paying, how am I doing against the S&P 500) in minutes. Come back to a paid planner when the balance or the complexity justifies it.
• You are within a few years of retirement. Pay a fee-only planner. The questions that matter now are sequencing, withdrawal order, tax, and how much downside you can survive at the moment you start taking money out, and those are judgment questions about your life rather than measurement questions about your holdings. Use a free tool first to arrive with the facts.
• You inherited a portfolio. Get a human, ideally a fee-only planner working alongside a tax professional. Inherited accounts carry cost-basis treatment and distribution rules that generic analysis will miss entirely, and the portfolio was designed for somebody else's timeline. Software can tell you what is in it; a professional should tell you what to do about it.
• You think you are over-concentrated in one stock. Measure it first, because people are often wrong in both directions. A free tool that reads your holdings will tell you the actual percentage in minutes, including the exposure hiding inside your funds. Then, if the position is large and carries a big embedded gain, pay for an hour with a planner, because the question is no longer “is this too much” but “what does unwinding it cost me in tax, and over how many years.”

To be upfront, since this is our site: Walnut is one of the AI portfolio assistants in the second route above, and it sits below a fee-only human planner on this page deliberately, because for a genuine expert review a fiduciary you pay by the hour is the better answer. What Walnut does is narrower and faster. You connect the broker you already use, read-only, and then ask questions about what you actually hold in plain English, through Walnut's own assistant or through Claude and ChatGPT. It shows how concentrated you are, where your funds overlap, and how each holding has performed against the S&P 500, classified as outperforming, in line, or lagging. Because broker feeds rarely pass cost basis, it frames returns as window returns rather than realized profit and loss, and says so.

To be equally plain about what it is not: Walnut is not a registered investment adviser, it does not give investment advice, and nothing it produces is a recommendation. It answers questions about holdings you already own. Your money stays at your broker, the connection is read-only by default, and you approve any trade yourself. If what you need is advice, you need a person who is licensed to give it.

• You want advice from a fiduciary. Walnut is not an investment adviser and is not a fiduciary. A fee-only planner is the right route, and that is why it ranks first here.
• Your question is really a tax question. Unwinding a concentrated position, harvesting losses across years, or planning Roth conversions needs a tax professional, not a portfolio tool.
• Your question is really an estate question. Trusts, beneficiaries, and inherited account rules are outside what any portfolio analyzer covers.
• You want a single structured report with a risk score rather than a conversation. PortfolioPilot delivers that format directly; Walnut is interactive by design.
• You want someone to manage the money for you. That is a robo-advisor or a full-service advisor. Walnut never holds your money and never trades without your approval.
• You do not want to connect a brokerage account. Walnut reads a real connected account, so without one there is nothing for it to analyze. A tool that takes manual entry, or your broker's own dashboard, would suit better.

For the wider field of tools that read a connected portfolio, see the best AI portfolio analyzers, or the mechanics of connecting your brokerage to an AI assistant.