Last updated: March 2026
Schwab SlicePilot ("the Extension") is a browser extension for Google Chrome that automates stock-ticker selection on Charles Schwab's Stock Slices page. This Privacy Policy explains what data the Extension collects, how it is used, and how it is stored.
The Extension stores the following data exclusively on your device using the browser's
built-in chrome.storage.local API:
| Data | Purpose |
|---|---|
Your list of stock tickers (e.g. AAPL, MSFT) |
Persisting your watchlist between browser sessions |
| Monthly reminder settings (enabled/disabled, day of month, last-triggered month) | Powering the optional monthly savings-plan reminder |
This data never leaves your device. It is not transmitted to any server controlled by this extension or its developer.
The Extension does not collect, read, store, or transmit:
https://client.schwab.com/app/trade/stockslices/*The Extension makes outbound network requests only in the following two cases:
When you type in the stock search field in the popup, the Extension sends your partial input to Yahoo Finance's public search API:
https://query1.finance.yahoo.com/v1/finance/searchhttps://query2.finance.yahoo.com/v1/finance/searchThis request is made solely to provide autocomplete suggestions. No personal data is included. These requests are governed by Yahoo Finance's own privacy policy.
The Extension injects a content script into
https://client.schwab.com/app/trade/stockslices/* when you click "Run".
This script interacts with the page's DOM (input fields and buttons) to pre-fill your
stock selection. It does not read, transmit, or store any account
information displayed on that page.
| Permission | Reason |
|---|---|
storage |
Save your ticker list and reminder settings locally on your device |
activeTab |
Detect whether the active tab is the Schwab Stock Slices page (for the toolbar badge) |
scripting |
Inject the automation script into the Schwab Stock Slices page when you click "Run" |
tabs |
Query and update tabs for badge display and opening the reminder window |
alarms |
Trigger the monthly savings-plan reminder on your configured day |
Host permissions (https://client.schwab.com/*,
https://query1.finance.yahoo.com/*,
https://query2.finance.yahoo.com/*) are required exclusively for the
automation and autocomplete features described above.
The Extension interacts with the following third-party services:
The Extension is not directed at children under the age of 13 and does not knowingly collect any data from children.
If this policy changes materially, the updated version will be published at the same URL and the "Last updated" date above will be revised. Continued use of the Extension after changes constitutes acceptance of the revised policy.
For questions about this privacy policy, please send a message to:
stock-slicer@patrickreuter.de