Overview

A Vanguard study tracking a 60-40 portfolio from 1989 to 2021 found it had quietly drifted to 80% equity -- the same creep happening right now in your clients' portfolios. Rebalancing is not about chasing returns; it is about keeping risk exactly where your client signed up for it, and that discipline is what separates a real advisor from someone who just clicks buy.

Key Points

• Portfolio drift is invisible: equity outperformance alone can push a 60-40 split to 75-80% equity without a single decision
• Two trigger methods: annual time-based reviews combined with a 5% threshold catch drift without overtrading
• Three execution routes: sell-and-buy, SIP redirection (most tax-efficient), or Systematic Transfer Plan to spread cost
• Goals-based rebalancing beats fixed rules: one client's disciplined COVID rebalancing added roughly 8% to his retirement corpus by 2023
• Strategic vs tactical distinction: a client who over-traded tactically earned 3.2% CAGR vs a neighbor's 11.8% on simple strategic rebalancing

Takeaways

Rebalancing done consistently is stewardship clients can see -- it builds referrals and long relationships because clients stay through cycles instead of disappearing in corrections. Always communicate the reason to the client before acting, not after.

Action Step

Pull the original target allocation for three long-term clients today, calculate current drift, and flag any asset class off by more than 5% for a documented rebalancing plan this week.