M1 Spreadsheet: Portfolio Tracking and …: is this $140 stack worth it for spreadsheet?
Managing a multi-asset portfolio without a rigid system usually ends in one of two ways: you’re constantly chasing the market with manual calculations, or you’ve drifted so far off your intended strategy that you don’t even know what you’re holding anymore. If you are tired of switching between a broker’s dashboard, a random calculator, and a mental spreadsheet to figure out if you’re overweight in tech or underweight in bonds, the M1 Spreadsheet: Portfolio Tracking and Rebalancing is built to collapse that workflow into a single, automated view. It isn’t a generic budgeting sheet; it is a specialized engine for investors who want to enforce discipline through math rather than willpower.
Quick answer
| Best for | Active investors who use a target-weight strategy and want automated rebalancing calculations, dividend growth tracking, and deposit allocation in one place. |
| Skip if | You are a passive index-fund investor with no need for granular sector weighting, or you prefer a mobile-first app over a desktop spreadsheet workflow. |
| Price | $140 (currently 60% off with code BF2025) |
| Format | .xlsx spreadsheet + .obsidian vault + Notion guides |
| One-line take | A robust, customizable engine that turns your target allocation into actionable buy/sell instructions automatically. |
What you’re actually buying
At a standard price of $140, you are paying for a complete operational layer on top of your brokerage account. The core of the M1 Spreadsheet is its ability to ingest your current holdings and compare them against your defined target weights. It doesn’t just tell you you’re off-track; it calculates the exact dollar value and share count needed to fix the drift. This is where the “Net Zero” and “Buy-Only” rebalancing modes become critical. If you want to maintain your total portfolio value by trimming winners and buying laggards, the sheet generates the sell/buy list. If you prefer to only add to your portfolio (avoiding capital gains triggers), it calculates how to allocate new cash to bring you back into alignment without selling a single share.
Beyond rebalancing, the spreadsheet handles the often-overlooked task of deposit allocation. When you have a lump sum or a monthly contribution, the tool breaks that money down by your target weights, telling you exactly how many shares of each asset to buy to maintain your strategy. It also includes a dedicated dividend growth tracker, visualizing your passive income stream with month-over-month and quarter-over-quarter metrics so you can see your yield compounding over time. (M1 Spreadsheet: Portfolio Tracking)
The package isn’t just the file. You get access to the latest version of the spreadsheet, detailed guides on how to use and customize it, and community access. The file is delivered in both .xlsx and .obs formats, making it compatible with standard Excel/Sheets workflows or the Obsidian note-taking ecosystem if you prefer a markdown-based second brain. (M1 Spreadsheet: Portfolio Tracking)
Why it’s on our radar
This product stands out because it solves the “execution gap” in personal finance. Many tracking tools show you where you are, but few tell you exactly what to do next in terms of share quantities. The M1 Spreadsheet bridges that gap by automating the math of rebalancing, which is the most tedious part of a strategic investment plan.
The inclusion of a “Buy-Only” rebalancing mode is a specific feature that appeals to tax-conscious investors who want to stay disciplined without triggering unnecessary capital gains events. Furthermore, the integration of direct links to 10 major financial resources (including SeekingAlpha, WhaleWisdom, and InsiderTracking) directly within the sheet reduces the friction of research. You can see your position status and click through to the latest insider data or news for that specific ticker without leaving the spreadsheet. (M1 Spreadsheet: Portfolio Tracking)
What actually matters
Before you commit, check that your investment style matches the tool’s logic. This is a target-weight tool. If you are a buy-and-hold investor who never rebalances, or if you use a dynamic strategy that changes based on market conditions rather than fixed percentages, this spreadsheet may not fit your workflow. It shines when you have a static or semi-static allocation plan (e.g., 60% stocks, 40% bonds, 10% real assets) that you want to enforce mechanically. (M1 Spreadsheet: Portfolio Tracking)
Second, verify your comfort with spreadsheet mechanics. While the product includes guides, it is a .xlsx file. You will need to be willing to input your holdings and configure your target weights. It is not a “set and forget” app that syncs automatically with your broker via API (unless you use a separate data connector, which is not mentioned in the core features). The value here is in the calculation logic, not the data ingestion. (M1 Spreadsheet: Portfolio Tracking)
Finally, consider the file format. If you are a heavy Obsidian user, the .obs format is a nice touch for keeping your investment notes and spreadsheet in one vault. If you are strictly on mobile, note that complex spreadsheets are often harder to manage on a phone than on a desktop. (M1 Spreadsheet: Portfolio Tracking)
Mid-check
If you are ready to move from manual tracking to automated strategy enforcement, See current options to check the discounted price and confirm the file formats available.
FAQ
Does the M1 Spreadsheet automatically sync with my brokerage account? No, the listing does not mention automatic API syncing with brokers. You will likely need to input your holdings and transaction data manually or via a compatible data import method. The value is in the calculation and rebalancing logic, not the data feed.
Can I customize the target weights for different sectors? Yes. The spreadsheet is designed to let you set target weights for both broad asset classes and specific sectors. Once set, it automatically calculates how far off-weight each of your positions is. (M1 Spreadsheet: Portfolio Tracking)
What is the difference between “Net Zero” and “Buy-Only” rebalancing? “Net Zero” calculates the trades needed to restore your target weights without changing your total portfolio value (selling overweight assets to buy underweight ones). “Buy-Only” calculates how to allocate new deposits to bring you back to target weights without selling any existing positions. (M1 Spreadsheet: Portfolio Tracking)
Bottom line
If you are an investor who believes in the power of a disciplined, target-weight strategy but finds the manual math of rebalancing to be a drag, the M1 Spreadsheet: Portfolio Tracking and Rebalancing is a high-leverage tool. It removes the cognitive load of calculating share counts and drift percentages, replacing it with a clear, actionable list of trades. At the current discounted price, it is a strong option for anyone who wants to professionalize their personal portfolio management without building a custom tool from scratch.