ETF Rebalancing Calculator

Manage US stocks, Korean stocks, and ETFs in one place and auto-rebalance to your target allocation

Real-time US & KR stock prices
Auto buy/sell calculation
Cloud sync supported

Privacy Policy

Google Sign-in is Secure

Our service uses only Google OAuth 2.0 protocol for authentication.

  • We never store or ask for your password
  • We only collect your name, email, and profile photo
  • Google's account security policies fully apply

The operator of ETF Rebalancing Calculator (etf-rebalancing.com) establishes and discloses the following Privacy Policy in accordance with the Personal Information Protection Act, in order to protect users' personal information and to handle related complaints promptly and smoothly.

Article 1 (Personal Information Collected)

This service collects the following personal information to provide its services:

1. Upon Registration (Google OAuth)

Required: Email address, name (nickname), profile photo, Google unique identifier

2. During Service Use

Optional: Portfolio data (tickers, weights, amounts, etc.)

3. Automatically Collected During Service Use

IP address, cookies, visit datetime, service usage history, device information

Article 2 (Purpose of Collection and Use)

  1. Service provision: member identification, portfolio data storage and synchronization
  2. Member management: registration and withdrawal, identity verification
  3. Service improvement: usage statistics, access frequency analysis, statistical analysis for service improvement
  4. Marketing and advertising: service announcements, event information (only with consent)

Article 3 (Retention and Use Period)

In principle, users' personal information is destroyed without delay after the purpose of collection and use has been achieved. However, if retention is required by applicable law:

Service usage records: 3 years

Records of consumer complaints or disputes: 3 years

Website visit records: 3 months (Protection of Communications Secrets Act)

Article 4 (Third-Party Sharing)

In principle, this service does not provide users' personal information to third parties. However, the following exceptions apply:

  1. When the user has given prior consent
  2. When required by law or when a law enforcement agency requests information in accordance with procedures and methods prescribed by law for investigative purposes

Article 5 (Outsourcing of Personal Information Processing)

This service outsources personal information processing as follows to ensure smooth service delivery:

SubcontractorOutsourced Task
Google (Firebase)Member authentication and data storage

Article 6 (User Rights and How to Exercise Them)

  1. Users may view or modify their personal information at any time.
  2. Users may withdraw consent for the collection and use of personal information by withdrawing their membership.
  3. Requests to access, correct, delete, or suspend processing of personal information may be submitted by email at contact@etf-rebalance.com.

Article 7 (Destruction of Personal Information)

  1. Personal information for which the retention period has expired or the processing purpose has been achieved will be destroyed without delay.
  2. Information in electronic file format will be permanently deleted using a method that prevents recovery.

Article 8 (Use of Cookies)

  1. This service uses cookies to analyze service usage and optimize advertising.
  2. Users may refuse cookie collection through browser settings; however, some service features may be restricted in that case.

Article 9 (Privacy Officer)

Email: contact@etf-rebalance.com

Article 10 (Changes to the Privacy Policy)

This Privacy Policy takes effect from the effective date. If there are any changes, the updated content will be announced through the service's notice board at least 7 days before the effective date.

Effective Date: February 26, 2026