Basic Investor

Home / Tools / Drift Monitor

Pro & Premium Portfolio Discipline

Smart Rebalancing Drift Monitor

Systematic portfolio discipline without emotional guesswork. Monitor asset class drift against target bands, log historical balance checkpoints, and rebalance smoothly using new cash flow without triggering unnecessary taxable capital gains.

Local Browser Storage & Privacy-First Tracking

Your balances, targets, and historical snapshots are saved exclusively in your personal browser localStorage. No portfolio data is transmitted to or stored on any external server.

Portfolio Allocation Targets

5%

Recommended: 5% absolute drift band prevents overtrading while preserving target risk profile.

Target Percentages

Sum: 100%

Current Asset Holdings ($)

Used to calculate tax-free cash-flow rebalancing orders without selling shares.

Master the art of rebalancing

Learn why opportunistic rebalancing outperforms rigid calendar dates and how to navigate bid-ask spreads.

Read Rebalancing Guide
0.0% Maximum Drift
$0 Portfolio Value
Checking... Rebalance Recommendation

Target Allocation vs. Current Actuals

Compare each asset class against its target weight. Breached tolerance bands highlight in orange.

Rebalancing Trade Instructions

Historical Drift Checkpoints

Track your discipline over time. The dashed line marks your custom rebalance trigger band.

Explore ETF Overlap Diagnostics

Verify whether your equity funds hold the same underlying mega-cap stocks using our ETF X-Ray Overlap Analyzer.

Launch ETF X-Ray
Educational information and diagnostic illustration only. Basic Investor does not provide individualized investment, legal, accounting, or tax advice. Trading orders are theoretical guides; evaluate bid-ask spreads, trading commissions, and tax implications before executing trades.