Beta-Neutral Portfolio

Core idea

A beta-neutral portfolio sizes long and short exposures so their estimated sensitivities to a benchmark offset. Dollar neutrality alone is not enough when the two sides have different market betas.

Implementation

Beta estimates need a suitable window and regular refresh as holdings and market regimes change.

Primary risk

Estimated beta is unstable and can change sharply during stress, leaving residual directional exposure.

Frequently asked questions

What is beta-neutral portfolio?

A beta-neutral portfolio sizes long and short exposures so their estimated sensitivities to a benchmark offset. Dollar neutrality alone is not enough when the two sides have different market betas.

What is the main risk of beta-neutral portfolio?

Estimated beta is unstable and can change sharply during stress, leaving residual directional exposure.