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Rebalancing

Rebalancing is the act of restoring a portfolio to its target asset allocation after market movement, contributions, or distributions cause drift. Rebalancing is the operational counterpart to the IPS — it converts the allocation policy into an executed practice. The defensible ...
Portfolio rebalancing Allocation rebalancing Strategy reset

The two main approaches

  • Calendar-based — rebalance on a defined cadence (quarterly, annual). Simple but mechanical; can rebalance unnecessarily or miss material drift.
  • Threshold-based — rebalance when an asset-class weight breaches a defined band (e.g., target 60% equity, rebalance when outside 55-65%). More responsive to actual drift.

Many firms combine both — threshold triggers with a calendar minimum.

What a rebalance produces

  1. Trades that restore weights toward target.
  2. Tax consequences — realized gains and losses, especially in taxable accounts.
  3. Transaction costs and bid-ask impact.
  4. A timestamped record of the trigger, the analysis, and the result.

Tax-aware rebalancing

In taxable accounts, rebalancing trades trigger tax consequences. Best practice approaches:

  • Direct new contributions and distributions to underweight asset classes first.
  • Harvest losses to offset rebalancing gains where possible.
  • Rebalance across tax-deferred and taxable accounts to minimize taxable trades.
  • Consider the wash sale rule when harvesting losses.

What examiners check

  • The IPS specifies the rebalancing approach and triggers.
  • Trigger-based rebalancing has documented evidence of the trigger event.
  • Calendar-based rebalancing has evidence the schedule was followed.
  • Tax-aware decisions are documented when departures from mechanical rebalancing happen.

How StratiFi thinks about rebalancing

Rebalancing is where the IPS becomes operational. Done well, it's a connected workflow — drift monitored continuously, triggers fired automatically, trades executed with tax awareness, decisions logged with the rationale. Done badly, it's a calendar reminder that produces tax bills nobody planned for.

Frequently asked questions