Quant Galore Momentum Index: A Practical Guide

Momentum: The Factor That Won't Go Away

Momentum is the most persistent anomaly in financial markets. Stocks that have gone up tend to keep going up. Stocks that have gone down tend to keep going down. This pattern has been documented across asset classes, geographies, and time periods stretching back over a century.

The intuition is straightforward: markets underreact to new information. When a company reports strong earnings, the stock jumps — but not all the way to its new fair value. The remaining adjustment happens gradually over weeks and months as more investors digest the news, analysts revise estimates, and momentum-following capital flows in.

The Quant Galore Momentum Index is a rules-based implementation of this idea: a 10-stock monthly basket of the highest-momentum U.S. equities, drawn from a universe of deeply liquid, optionable names. It gives you a ready-made momentum portfolio without having to build and maintain the ranking pipeline yourself.

How the Index Works

The construction is deliberate and transparent:

Universe: Deeply liquid U.S. equities with at least six consecutive weeks of listed weekly option expirations. This isn't an arbitrary filter — it ensures every name in the basket has robust options markets, which matters if you want to build overlays on top of the index.

Ranking: Cross-sectional momentum. Each month, the universe is ranked by momentum, and the top 10 names form the basket. Rank 1 is the highest-momentum stock.

Rebalance: Monthly, at 4:05 PM ET. The basket is published and stored. Once published, it's never retroactively altered.

This gives you a clean, point-in-time record of what the momentum portfolio looked like at each rebalance date. No survivorship bias, no retroactive adjustments.

Why a Concentrated Basket

Ten stocks is a concentrated portfolio by most standards. That's intentional. Momentum returns are top-heavy — the strongest performers contribute disproportionately to the strategy's total return. Diluting the basket with 50 or 100 names adds diversification, but it also waters down the very signal you're trying to capture.

A 10-stock basket sits in the sweet spot: concentrated enough to capture the strongest momentum, but diversified enough that a single name blowing up doesn't wipe out the portfolio. And because the universe is filtered for deep liquidity, you're not taking concentrated bets on illiquid micro-caps.

How Traders and Allocators Use This

Direct replication. The simplest use: buy the 10 stocks each month, hold until the next rebalance, repeat. The dataset gives you the exact basket and ranking, so replication is straightforward. You can equal-weight, rank-weight, or apply your own weighting scheme.

Performance attribution. Study which ranks contribute most to returns. Does rank 1 consistently outperform rank 10? How much turnover occurs between rebalances? What's the average holding period for a name in the basket? The historical constituent data lets you run this analysis rigorously.

Options overlays. Because the universe is filtered for weekly options availability, you can layer strategies on top of the equity basket: covered calls to enhance yield, protective puts to manage drawdowns, or more complex structures. The index gives you the equity core; the options give you the customization.

Momentum research. Use the historical basket to study momentum dynamics: how quickly does momentum decay after rebalance? When does the strategy draw down? How does it perform across different market regimes? The point-in-time storage means your research is clean.

Post-rebalance drift analysis. Momentum strategies often exhibit short-term drift after rebalance — the new basket continues the trend for some period before the signal fades. Measuring this drift can inform execution timing: do you buy at rebalance, or wait a day?

What the Data Looks Like

{
"date": "2026-02-02",
"ticker": "BE",
"rank": 10
}

Each rebalance date has exactly 10 records, one per constituent. The rank tells you where each name sits in the momentum ordering.

Key Details

The Bottom Line

Momentum is one of the most studied and persistent factors in equity markets. The challenge has always been implementation: building the ranking pipeline, maintaining the universe, storing historical baskets cleanly, and avoiding the data pitfalls that contaminate backtests.

The Quant Galore Momentum Index handles all of that. You get a maintained, rules-based momentum basket with full historical transparency, stored point-in-time, drawn from an optionable universe that supports sophisticated overlays. Whether you replicate it directly, research it, or build on top of it, the hard infrastructure work is already done.