Track Your VOO Portfolio
Enter your shares and average cost basis to see your real-time gain, today’s change, and projected dividend income. Updates live with every VOO price tick. Nothing is sent to our servers — all data stays in your browser.
This tracker is for illustrative purposes only. All values are calculated client-side using live VOO market data. Nothing is sent to our servers. Dividend projections use a fixed 1.20% annual yield applied to the current price and are not a guarantee of future distributions. Actual investment returns, dividends, and tax treatment will vary. This is not a prediction, guarantee, or recommendation. Consult a licensed financial advisor for personalized projections.
How the tracker calculates your position
The math behind each number is simple. Current value is your shares multiplied by the live VOO price, pulled from Yahoo Finance every sixty seconds. Total gain is current value minus what you paid (shares times your cost basis). Today’s change takes the difference between VOO’s current price and yesterday’s close, then multiplies by your share count to show exactly how many dollars you made or lost in the current trading session.
Yield on cost is where things get interesting for long-term holders. VOO’s current dividend yield is measured against today’s price, but your yield on cost is measured against your cost. If you bought VOO at $280 five years ago and the yield is 1.20% on today’s price of around $620, your effective yield on your original investment is closer to 2.65%. That’s because dividends have grown with the fund while your entry price is fixed. Long-term buy-and-hold investors often see yield on cost drift well above the headline yield over decades.
The next dividend estimate divides your projected annual dividend income by four, since VOO pays quarterly. The actual amount varies each quarter depending on distributions from the underlying S&P 500 companies — Vanguard announces the exact per-share amount before each ex-dividend date. See our full VOO dividend history page for past payments.
Private by design
Everything runs in your browser. Your shares and cost basis are saved to your browser’s local storage and as URL parameters so the page remembers them, but nothing is sent to VOO.us servers, Google Analytics, or any third party. You can bookmark the URL to save your view, share it with yourself across devices, or clear browser data at any time to remove it. We never see your numbers.
This is by design. A brokerage dashboard requires an account, a login, and trusting the platform with your position. This tracker gives you the same real-time view of your VOO holdings with zero of those commitments. It’s the simplest way to check “how much did I make today” on your VOO position in five seconds, first thing in the morning or last thing at night.
Related VOO tools
Once you know your current position, these calculators answer the follow-up questions every VOO holder eventually asks. The dividend calculator projects your income over one to twenty years with or without reinvestment. The returns calculator shows what a lump sum or monthly contribution into VOO would have grown to at any point in the fund’s history. The retirement planner works backward from an income goal to show how many shares you’d need at a target retirement age.
For general VOO background, our What is VOO? pillar covers the fundamentals, and the holdings page shows exactly what companies your shares own a piece of. If you’re comparing VOO to alternatives, the comparison hub has side-by-side breakdowns against SPY, VTI, SCHD, QQQ, and more.
Frequently Asked Questions
How does the VOO portfolio tracker work?
Enter the number of VOO shares you own and your average cost basis per share. The tracker uses the live VOO price to calculate your current position value, total gain or loss, today’s dollar and percentage change on your shares, yield on cost, and your projected quarterly and annual dividend income. All calculations happen in your browser. Nothing is sent to any server.
Is my portfolio data saved anywhere?
Your shares and cost basis are stored only in your browser’s local storage and as URL query parameters. Nothing is transmitted to VOO.us servers or any third party. You can bookmark the URL with your values to return to the same view on any device, or clear your browser data at any time to remove them.
What is yield on cost?
Yield on cost measures your current annual dividend income as a percentage of what you originally paid for your shares. If you bought VOO at a lower price years ago, your yield on cost will be higher than the current yield because dividends have grown while your cost stayed fixed. It’s a useful way to see how your dividend income has grown relative to your original investment.
How accurate is the dividend projection?
The next dividend estimate uses VOO’s current annual yield applied to the live price and divided by four for the quarterly payment. Actual VOO dividends vary each quarter based on the dividends received from the underlying S&P 500 companies. Use this projection as a rough estimate, not a guaranteed payment amount. Vanguard announces the exact per-share distribution before each quarterly ex-dividend date.
Can I track cost basis across multiple lots?
Not directly in this tool. The tracker uses a single average cost basis, which is how most brokerages report unrealized gains when you hold multiple lots. If you bought at different times, enter the weighted average cost: total dollars invested divided by total shares owned. This gives the same current gain figure your broker shows.
Does this work for VOO purchased in a Roth IRA or 401(k)?
Yes. The calculations are the same regardless of account type — shares times current price, minus shares times your cost basis. However, in a Roth IRA or 401(k), you don’t owe tax on gains or dividends, so the total gain number is your actual take-home. In a taxable brokerage account, remember that selling triggers capital gains tax on the gain amount shown.