RACWI: Reinventing Cap- Weighted Indexing

Untitled design - 1

RACWI: Reinventing Cap-Weighted Indexing

September 2025
Read Time: 25 min
Key Points
  • By design, the structure of traditional cap-weighted index causes a well-known tendency to buy high and sell low but also an underrecognized propensity for flip-flops.

  • Addition and deletion flip-flops add up to a shockingly costly drag on performance.

  • While the math behind cap weighting is sound, the costly flaws call for a smarter way to capture the market that avoids chasing exuberance and dumping despair.

  • The RACWI US Index is designed to address these deficiencies by changing how stocks get selected.

  • Rather than chasing price momentum or reacting to market noises, RACWI anchors index inclusion to a company’s real economic footprint.

  • RACWI US aims to retain the efficiency and transparency of indexing without the structural drawbacks of procyclical rebalancing, thereby adding meaningful value over time.

There has not been a fundamental innovation in broad-market cap-weighted indexing in decades. Until now. With the Research Affiliates Cap-Weighted Index (RACWI), we introduce a fresh approach designed to fix a costly but little-known “bug” in cap-weighted indexing.

Read Full Article

Investment Solutions

Trusted by investors around the world

Learn More  >

Learn More About the Author
Webinar Popup