Mastering Share of Voice: The Definitive Guide for Marketers

Share of Voice (SOV) is a critical metric for marketers looking to understand their brand‘s advertising presence and performance relative to competitors. But what exactly is SOV, how do you calculate it, and most importantly, how do you use it to optimize your marketing strategy?

In this comprehensive guide, we‘ll dive deep into the world of SOV, exploring its history, formula, use cases, benchmarks, and best practices. Whether you‘re a seasoned marketer or just starting out, this guide will equip you with the knowledge and tools you need to master SOV and drive better results for your brand.

What is Share of Voice and Why Does It Matter?

At its core, SOV measures your brand‘s advertising visibility compared to your competitors. Traditionally calculated as a percentage of total advertising spend in your category, SOV provides a clear picture of your brand‘s share of the advertising market.

For example, if your brand spends $1 million on TV ads in a month, and the total spend for your category on TV that month is $10 million, your SOV would be 10%.

But why should marketers care about SOV? There are several key reasons:

1. Assessing market presence: SOV reveals how much of the advertising "pie" your brand owns compared to competitors, helping you understand your overall market presence and position.

2. Setting budgets and goals: By analyzing your SOV in the context of your market share and growth objectives, you can determine if you‘re investing enough in advertising to achieve your goals.

3. Optimizing channel mix: Calculating SOV by channel empowers you to identify which channels are over- or under-performing in terms of driving brand visibility, so you can optimize your media mix.

4. Competitor monitoring: Tracking competitor SOV over time helps you spot threats and opportunities to gain or defend market share.

As Les Binet and Peter Field write in their seminal book "The Long and Short of It":

"SOV is a key metric for brand growth. If your SOV is higher than your market share, you are likely to gain share; if it is lower, you are likely to lose share."

History and Evolution of SOV

The concept of SOV dates back to the early days of advertising, when brands primarily competed for share of print, radio and TV audiences. In the 1960s and 70s, marketing mix modeling emerged as a way to measure the impact of advertising on sales, with SOV as a key input.

In the 1990s, as cable TV and the internet fragmented audiences, brands began calculating SOV within more specific audience segments and media vehicles. The rise of search engines and social media in the 2000s added new dimensions to SOV, with metrics like share of search and share of voice on social becoming increasingly important.

Today, SOV is a multi-faceted metric encompassing paid, earned and owned media across a wide range of channels. While the basic formula remains the same, the data sources and use cases for SOV have evolved considerably.

How to Calculate Share of Voice

The basic formula for calculating SOV is:

(Your Brand‘s Advertising Metric / Total Market Advertising Metric) X 100 = Your Brand‘s SOV

Traditionally, advertising spend was the primary "metric" used in SOV calculations. But with the rise of digital media, many brands now use advertising impressions as an alternative or complement to spend.

Here‘s a step-by-step process for calculating SOV:

1. Define your target market and competitive set
2. Determine your calculation metric(s) – spend, impressions, or both
3. Gather advertising data for your brand
4. Estimate total market advertising data
5. Divide your brand by the total market and multiply by 100 to get SOV percentage

For example, let‘s say your brand generated 25 million paid search impressions last quarter, and you estimate based on third-party research that there were 500 million total paid search impressions in your category.

Your SOV calculation would be: (25,000,000 / 500,000,000) x 100 = 5%

It‘s important to note that in most cases, brands will calculate SOV across multiple channels (e.g. TV, radio, search, social, display, etc.) and aggregate them for a total SOV figure. Blending data from different sources and formats can be challenging, which is why many brands rely on marketing intelligence platforms or agencies to help with SOV analysis.

SOV Use Cases and Examples

So what does SOV look like in practice? Here are a few examples of how leading brands have used SOV to inform and optimize their marketing strategies:

Coca-Cola: Defending Market Share with SOV

As a global brand with a massive advertising budget, Coca-Cola closely tracks its SOV across markets to ensure it is maintaining its dominant market position. In a keynote at a marketing conference, a Coca-Cola executive shared:

"We constantly monitor our share of voice compared to our key competitor, and aim to maintain at least a 2:1 ratio. If we see our SOV dip below that level in a particular market, it‘s a trigger for us to ramp up investment and defend our position."

Airbnb: Optimizing Channel Mix with SOV

As a digital-first brand, Airbnb relies heavily on search and social advertising to drive growth and compete with well-established hotel chains. By analyzing SOV data across channels, the Airbnb team uncovered an opportunity to gain share in paid search. As former Airbnb CMO Jonathan Mildenhall recounts:

"We found that we were significantly under-invested in Google Ads compared to our competition, with only a 5% SOV despite being the category leader. We quickly scaled up our search investment and were able to capture 25% of the impressions within two quarters."

HubSpot: Tracking Competitor Moves with SOV

As a leading marketing software brand, HubSpot uses SOV data to stay on top of competitor moves and inform its own advertising strategy. In a blog post, HubSpot‘s VP of Marketing writes:

"Every quarter, we analyze our paid SOV across key channels compared to our top 5 competitors. If we see a competitor significantly ramping up their SOV, it‘s often a leading indicator that they‘re about to make a big product announcement or strategic move. We use this insight to adjust our own advertising and PR plans accordingly."

These examples illustrate just a few of the many ways SOV can be used to drive marketing strategy and decision-making.

Industry Benchmarks for SOV

One of the most common questions marketers have about SOV is "what‘s a good benchmark for my brand and industry?" The truth is, SOV benchmarks vary widely depending on factors like market size, competition, marketing maturity and budget.

That said, here are some general SOV benchmarks by channel based on data from Nielsen, Kantar, and eMarketer:

Channel	Avg. SOV for Category Leaders	Avg. SOV for Challengers
TV	25-40%	10-20%
Radio	20-30%	5-15%
Paid Search	40-60%	10-30%
Display Advertising	10-20%	5-10%
Social Media Advertising	20-40%	10-20%

Keep in mind these are rough averages and will not apply to every brand and category. It‘s important to benchmark your SOV against your direct competitors and adjust based on your unique marketing goals and challenges.

The Impact of Technology and AI on SOV

As technology continues to transform the advertising landscape, it is also reshaping how brands approach SOV measurement and optimization. The rise of programmatic advertising, AI-powered ad platforms, and unified marketing measurement are all having a profound impact.

On one hand, programmatic and AI tools are making it easier than ever to track and optimize SOV in real-time. Brands can now adjust bids, budgets and targeting on the fly based on real-time SOV data. As Niel Robertson writes in AdExchanger:

"AI-optimized bidding and dynamic creative can help brands maintain SOV supremacy, even in the most competitive auctions. The algorithms are constantly learning and adjusting to ensure maximum share of voice at the most efficient cost."

On the other hand, the proliferation of digital touchpoints and the need for cross-channel measurement are making SOV more complex and challenging to unify into a single view. Many brands are turning to marketing intelligence platforms and data clean rooms to build comprehensive, privacy-safe views of SOV across paid, earned and owned channels.

SOV and Omnichannel Measurement

To fully leverage the power of SOV, it‘s critical to analyze it in the context of other key marketing metrics like reach, frequency, conversions, and ROI. After all, having a high SOV is less meaningful if it‘s not reaching your target audience or driving business outcomes.

The most sophisticated marketers are using SOV as part of broader, omnichannel measurement programs that provide a unified view of performance across channels and tactics. By combining SOV with other metrics, you can get a 360-degree view of questions like:

• Is my high SOV translating into high reach and frequency with my target audience?
• Are my high-SOV channels driving lower-funnel metrics like site traffic and conversions?
• What‘s the optimal balance of SOV, reach and frequency to maximize ROI?

Answering these questions requires a robust marketing measurement infrastructure that can ingest data from multiple sources, stitch user journeys across channels, and provide actionable insights. Many brands are using marketing mix modeling and multi-touch attribution alongside SOV analysis to get the full picture.

Tips for Presenting SOV Data

Once you‘ve calculated your SOV, the next step is to communicate it effectively to stakeholders. Here are a few tips for presenting SOV data in a way that drives alignment and action:

1. Keep it simple: SOV can be a complex metric, especially when blending data across channels. Use clear, simple visualizations and language to communicate key takeaways.

2. Show change over time: SOV is most powerful when tracked and compared over time. Use trended graphs and charts to show how your SOV is evolving compared to competitors.

3. Provide competitive context: Always show your SOV in the context of competitors and the broader market. Use benchmarks and indexes to show how you stack up.

4. Connect to business outcomes: Help stakeholders understand the impact of SOV by connecting it to metrics like sales, market share and brand health.

5. Recommend actions: Move beyond simply reporting on SOV to recommending actions and next steps. Use scenarios and simulations to show how different investment levels could impact SOV and business outcomes.

Setting Up an Ongoing SOV Measurement Program

Tracking SOV should not be a one-time exercise. The most effective marketers are continuously monitoring and optimizing SOV as part of an ongoing measurement program. Here are the key steps to setting up an ongoing SOV measurement program:

1. Define your data sources: Identify the key data sources you‘ll need to calculate SOV across channels, including media monitoring, web analytics, social listening, and market research.

2. Establish data partnerships: Build relationships with agencies, ad platforms and measurement providers to ensure you have access to the data you need on an ongoing basis.

3. Create a data infrastructure: Invest in tools and platforms to automate data collection, integration and analysis. Many brands are using marketing intelligence platforms to unify SOV data in a single source of truth.

4. Set up dashboards and alerts: Build dashboards and set up alerts to monitor SOV trends and anomalies in real-time. Share insights with key stakeholders on a regular basis.

5. Integrate with planning and optimization: Use SOV insights to inform media planning and optimization. Set targets and hold teams accountable for maintaining or growing SOV over time.

6. Continuously evolve and innovate: Stay on top of emerging trends and technologies that could impact SOV measurement, like privacy regulations, walled gardens, and new ad formats. Continuously test and innovate to stay ahead of the curve.

Expert Perspectives on the Future of SOV

To get a sense of where SOV is heading in the future, we reached out to some of the leading experts and thought leaders in marketing measurement for their take:

According to Ewan McIntyre, VP Analyst at Gartner:

"Share of voice will remain an important metric for marketers, but the way it‘s calculated and used will continue to evolve. As walled gardens like Amazon, Google and Facebook consume a larger share of ad spend, marketers will need new ways to measure SOV within these closed ecosystems. At the same time, the rise of retail media networks and connected TV will create new opportunities to track SOV at a more granular level."

Katie Ryan, Senior Partner at Kantar, adds:

"The future of SOV is about moving beyond just paid media to measure share of experience across the entire customer journey. Brands need to think about how they stack up in terms of share of search, share of social conversation, share of shelf, and share of culture. Progressive marketers are using advanced analytics and AI to build predictive models that link these different ‘shares‘ to growth outcomes."

And as Kristi Argyilan, Head of WarnerMedia Ad Lab, puts it:

"In a world of on-demand, ad-free content, traditional measures of SOV are becoming less relevant. Brands need to focus on capturing attention and driving engagement, not just bombarding audiences with ads. That means creating experiences that people actually want to spend time with, whether it‘s through branded content, influencer partnerships, or interactive ad formats."

Conclusion and Next Steps

Share of voice is a powerful metric for understanding your brand‘s advertising presence and performance relative to competitors. But it‘s not enough to simply calculate SOV as a one-time exercise. The most effective marketers are continuously monitoring and optimizing SOV as part of an ongoing, omnichannel measurement program.

To get started with SOV measurement, follow these steps:

1. Align with stakeholders on the business questions you‘re trying to answer with SOV
2. Identify the channels, data sources and metrics you‘ll need to calculate SOV
3. Build a data infrastructure to automate SOV calculation and reporting
4. Establish benchmarks and targets for SOV based on your industry and goals
5. Integrate SOV insights into planning and optimization processes
6. Monitor and adjust your SOV strategy based on results and market trends

Remember, SOV is just one piece of the puzzle when it comes to marketing measurement. To get the full picture, combine SOV with other metrics like reach, frequency, engagement and ROI, and strive to build a truly omnichannel view of performance.

Need additional guidance on SOV and marketing measurement? Check out these resources:

• Gartner‘s Market Guide for Marketing Measurement and Optimization Solutions
• Kantar‘s Media Reactions Report on Global Ad Equity
• Nielsen‘s Annual Marketing Report on ROI and Measurement Trends
• The ARF‘s Guide to Unified Marketing Measurement

With the right tools, processes and mindset, any brand can harness the power of SOV to drive better marketing results. So what are you waiting for? Start measuring and mastering SOV today!