The Science Behind Share of Voice: How It’s Measured and Why It Matters

Part 2 of our 3-part series on mastering Share of Voice for digital brand success

In Part 1 of our series, we introduced Share of Voice (SOV) as a critical metric for understanding your brand’s digital market presence. Now, let’s dive deeper into how this powerful metric is calculated and why it provides insights that simpler metrics simply can’t match.

The Science Behind SOV Calculation

Let’s look at how our DX Studio data platform calculates Share of Voice in practice through a systematic five-step process:

1. Data Collection

First, we gather search data for your target keywords by:

• Identifying keywords that define your market
• Collecting SERP data across these keywords
• Capturing both your brand’s and competitors’ positions

Our experience shows that 250-1000 keywords provide the optimal balance for statistical significance, depending on your sector.

2. Position Analysis

We analyze the raw position data to understand:

• Your brand’s placement in search results
• Position changes over time
• Competitor presence for your target keywords
• Position distribution across keyword groups (awareness, consideration, action)

3. Traffic Estimation

To estimate potential traffic value, we combine:

• Search volume data
• Position-based CTR models
• Search features that affect CTR

This transforms position data into visibility and potential traffic estimations.

4. Share Calculation

We calculate market share by combining position and traffic data across all competing brands, expressing your brand’s portion as a percentage of the total market. This gives us your Share of Voice – the percentage of potential search visibility belonging to your brand.

5. Monthly Aggregation and Reporting

Daily data is aggregated and reported monthly using DX Spotlight to provide:

• Stable metrics that smooth daily fluctuations
• Period-over-period comparisons
• Progress tracking against targets and competitors

What makes this metric particularly powerful is its ability to account for both the quality of your positions (through CTR curves) and the quantity of potential traffic (through search volume data). This combination provides a much more accurate picture of market presence than simpler metrics like average position or keyword rankings alone.

SOV in Action: A Real-World Example

Let’s dive into a real-world example that demonstrates how Share of Voice translates into actionable insights. Looking at one of our client performance charts, we can see significant growth in both Position Score and SOV over time:

A detailed analysis of position ownership across keyword categories reveals:

Key insights from the data:

• Increased Top 3 positions across all stages driving SOV growth
• Strong dominance in awareness stage (47.1% of Top 3 positions)
• Weaker presence in action stage despite recent gains
• Concentrated growth in high-CTR top positions
• Only 30% of consideration and 25% of action keywords owned by tracked competitors, revealing unidentified market players

The month-over-month improvements might seem incremental, but they represent significant gains in market visibility when you consider:

• The competitive nature of these positions
• The high search volume associated with these terms
• The compounding effect of improvements across different keyword groups

Short-Term vs. Long-Term Value of SOV

The example above demonstrates the immediate value of SOV in tracking and improving digital performance. While this client is already seeing tangible benefits, the real power of SOV lies in both its short-term insights and long-term predictive capabilities.

As seen in our research and echoed by experts like Les Binet, SOV delivers value across multiple time horizons:

Short-Term Benefits:

1. SEO Focus and Prioritization
   • Forces assessment and pragmatic prioritization of SEO factors
   • Drives focus on the most valuable keywords based on search volume
   • Encourages consideration of click-through rates, not just rankings
2. Competitor Intelligence
   • Reveals competitors you didn’t know you had in search
   • Provides insights into competitive strategies
   • Measures the whole sector, not just a few pre-selected competitors
3. Brand Visibility Insights
   • Spotlights opportunities to improve brand visibility
   • Identifies weaknesses relative to competitors
   • Provides a list of actionable improvements
4. Organizational Capabilities
   • Helps CMOs inform search strategy direction
   • Enables tracking of consumer demand
   • Provides a framework for reporting progress to stakeholders

As Richard Game captures here, these immediate benefits make SOV valuable even before its long-term impact on market share is realised.

---

In our final instalment, we’ll show how to transform SOV insights into strategic action and reveal how leading brands use this metric to drive sustainable growth.

To learn more about how Cressive DX can help you measure and improve your brand’s Share of Voice, contact our team for a personalised demonstration of our DX Spotlight platform.