UBS logo
UBS

May 21, 2026

The Call Overwriter's Guide: Identifying Stocks for Single Stock Call Selling

EquitiesDerivativesVolatilityOther

This report outlines an active approach to single-stock call overwriting, using a factor-based model to identify stocks that maximize yield while minimizing the risk of being exercised.

Key Takeaways

  • 1.Selling calls on existing equity positions is an effective way to earn additional yield but caps total achievable return.
  • 2.Shorter-dated structures (e.g., one-month tenors) and defensive (low delta) striking methods typically deliver better long-term results than longer-dated options.
  • 3.Active stock selection using price momentum, implied volatility, and valuation 'hype factors' can significantly improve call overwriting outcomes.

Table of Contents

  • Overwriting an income diversifier
  • Structuring call-writing overlays
  • In search of the good calls
  • A systematic approach
  • A tale of two systematic approaches
  • Optimizing the overwrite
  • Buying cheap volatility

Document Preview

Page 1 of 5
Page 1 of The Call Overwriter's Guide: Identifying Stocks for Single Stock Call Selling
Subscribe for full access

Access the Full Report

Get unlimited access to institutional research reports with a 14-day free trial.

Authors

Moritz VontobelLuca Henzen

Securities

MSCI World IndexSPX

Themes

Yield EnhancementFactor-Based Option StrategyVolatility Risk Premium

Regions

GlobalNorth AmericaEuropeUnited StatesSwitzerland