Quick Summary
Why investment tracking spreadsheets fail and how Google Sheets and Excel handle the real problems - data entry friction, multi-account complexity, asset valuation, and actually keeping the tracker up to date.
Here’s the honest reality of DIY investment tracking: most people who build a portfolio spreadsheet stop updating it within three months. Not because the spreadsheet was badly built, but because the friction of keeping it current quietly wins. The platform you pick matters less for its features and more for whether it reduces that friction enough to survive contact with your actual habits.
Our templates work in Google Sheets. The Financial Planning Template and Net Worth Tracker are built for Google Sheets - track investments alongside your complete financial picture.
Failure Point 1: Forgetting to Update
The most common way an investment tracker dies is neglect. You build it on a Saturday afternoon, enter all your positions, admire it for a week, and then life gets busy. A month passes. Then two. The numbers are stale and the motivation to catch up evaporates.
Google Sheets has a structural advantage here because of GOOGLEFINANCE. Type =GOOGLEFINANCE("AAPL") and Apple’s stock price updates automatically - roughly every 20 minutes during market hours. For a portfolio of stocks, ETFs, and mutual funds, this means the price column stays current without you doing anything. You open the spreadsheet after ignoring it for three weeks, and the market values are already there.
This matters more than it sounds. When the data is current without effort, there’s no “catching up” step. You just look at the numbers. That makes it more likely you’ll actually open the spreadsheet regularly.
Excel (with Microsoft 365) has the Stocks data type and STOCKHISTORY function, which can pull prices too. But the experience is more deliberate - you typically need to open the file and refresh the data connections. It works, but it’s one more step between you and current numbers. Mobile Excel can do this too, though the experience feels heavier than glancing at a Google Sheet on your phone.
For people who know they struggle with consistency, the platform that auto-updates wins - and that’s Google Sheets.
Failure Point 2: Multi-Account Chaos
Most people don’t have one brokerage account. They have a 401(k) with one provider, an IRA somewhere else, a taxable brokerage account, maybe a spouse’s accounts, and possibly some old 401(k)s from previous jobs they never rolled over. Getting a complete picture means pulling data from four or five different places.
Neither platform solves this elegantly, but they fail in different ways.
Google Sheets makes the ongoing tracking easier because of auto-updating prices, but you still need to manually enter share counts when you buy or sell. If you have five accounts and trade occasionally in two of them, that’s manageable. If you’re actively trading across multiple accounts, the manual entry of transactions becomes the friction point.
Excel handles the data import side more capably. Power Query can connect to CSV exports from most brokerages. Download your transaction history, point Power Query at it, and the data transforms into your tracking format. Once you set up the query, refreshing with new data is quick. For someone willing to do a monthly export-and-refresh cycle, Excel keeps multi-account data cleaner.
The real-world pattern: Google Sheets works well for people who buy and hold across a few accounts and just want to see current values. Excel works well for people who want transaction-level detail from multiple accounts and are willing to do periodic data imports. If you’re someone who buys index funds in three accounts and rarely trades, Google Sheets’ auto-pricing covers most of what you need. If you track individual lots, cost basis, and realized gains across accounts, Excel’s data tools earn their keep.
Failure Point 3: Valuing Things That Don’t Have a Ticker Symbol
GOOGLEFINANCE is great - until you try to track something it doesn’t cover. It handles stocks, ETFs, mutual funds, and currency exchange rates. It does not handle individual bonds, real estate, private investments, crypto, or alternative assets.
For a lot of people, the assets that GOOGLEFINANCE can’t price are a significant part of their net worth. A house. A rental property. A private business stake. Some cryptocurrency. These all require manual valuation, and there’s no good answer for how often to update them or what number to use.
Both platforms are equally unhelpful here - you’re entering a number in a cell either way. The question is what you do about it.
One practical approach: separate your portfolio into “auto-priced” and “manually-priced” sections. For the auto-priced portion (publicly traded securities), let GOOGLEFINANCE or STOCKHISTORY do the work. For the manually-priced portion, set a calendar reminder to update values quarterly. Real estate might get updated once or twice a year based on comparable sales. Crypto can be updated more frequently using third-party APIs through Google Sheets’ Apps Script or Excel’s Power Query.
The danger of mixed portfolios in spreadsheets is that the auto-updating part looks current while the manual part quietly goes stale. Three months later, your “total portfolio value” is a mix of today’s stock prices and last quarter’s property estimate. Knowing which numbers are fresh and which aren’t turns out to be as important as the numbers themselves.
Failure Point 4: Not Knowing What to Actually Track
A blank spreadsheet and a brokerage statement is where many trackers go wrong from the start. What goes in the spreadsheet? Current value? Cost basis? Returns? Time-weighted returns? Allocation percentages? Dividend income?
Tracking everything creates a monster spreadsheet. Tracking too little makes the exercise pointless.
For most people, three things matter: total current value by account, allocation across asset classes (stocks vs bonds vs cash vs other), and simple performance over time (is it going up, going down, and roughly by how much).
Both platforms handle this level of tracking equally. Where they diverge is when you want more:
Excel with Power BI can build interactive dashboards - slice performance by sector, time period, or account, and drill into individual holdings. Pivot tables handle multi-dimensional analysis that Google Sheets’ pivots can approximate but not match in depth. If you want to analyze which asset classes drove returns over specific periods or compare your allocation against a target, Excel provides deeper tools.
Google Sheets is enough for portfolio awareness. A dashboard tab showing current values, a pie chart of allocation, and a line chart of total value over time tells you what you need to know. The QUERY function is surprisingly capable for filtering and summarizing transaction data. For most individual investors - people who want to see where they stand without doing institutional-grade analysis - this covers it.
What Actually Keeps a Tracker Alive
The platforms have real differences in features. But the feature that matters most is whether you’ll actually use the thing.
Google Sheets’ advantage is low friction. It opens in a browser, prices update on their own, you can check it from your phone. That ease of access makes it more likely to survive as a habit.
Excel’s advantage is depth. When you sit down for a serious portfolio review - maybe quarterly, maybe annually - and want to dig into performance attribution, rebalancing analysis, or tax-loss harvesting candidates, Excel has the tools for that kind of session.
Some people use both: Google Sheets for ongoing awareness (what’s my portfolio worth today?) and Excel for periodic deep analysis (how did each asset class perform this year, and what needs rebalancing?). That’s not a bad approach, though it adds the overhead of maintaining two systems.
The single most important thing: pick one approach and actually use it. A Google Sheet with just your account balances, updated monthly, gives you more insight than a sophisticated Excel model with Power BI dashboards that you opened twice and abandoned.
Template recommendation: The Net Worth Tracker works in Google Sheets and includes investment tracking alongside your complete financial picture - a good way to start with something structured rather than a blank spreadsheet.