Your marketing team says the brand had a strong quarter: more press, more social posts, a bigger search campaign. Leadership asks the obvious question, compared with whom? Share of voice answers it by putting your brand’s visibility next to your competitors’. It is one of the core measures in competitive intelligence, and it is most useful when you know which channels it covers and how to read it next to your brand tracking.
Key takeaways
- Share of voice is your brand’s share of the total visibility or conversation in a category, relative to the competitors you track.
- The formula is the same in every channel: your brand’s volume divided by the category total, times 100.
- It began as share of advertising spend; today teams also measure it for earned media, social mentions and search.
- Excess share of voice (your share minus your market share) is a widely used rule of thumb for whether a brand is positioned to grow.
- Read it alongside awareness and consideration to see whether visibility is turning into preference.
What does share of voice mean?
Share of voice (SOV) started in advertising, where it meant your brand’s share of all ad spend in a category. If the category spent $10 million on media and you spent $2 million, your SOV was 20%. Spend buys exposure, and exposure in a crowded category is relative.
The idea has since spread to every channel where brands compete for attention. Most definitions describe one channel only, usually social or search, but brand teams use several side by side, because a brand can lead in paid media and trail in earned conversation.
What are the types of share of voice?
Each type uses the same structure, your volume divided by the total for all tracked brands, but counts something different.
| Type | What it counts | Formula |
|---|---|---|
| Advertising | Media spend | Brand ad spend ÷ total category ad spend × 100 |
| Earned media | Press and editorial mentions | Brand media mentions ÷ total category mentions × 100 |
| Social | Posts or mentions naming the brand | Brand social mentions ÷ total category social mentions × 100 |
| Organic search | Visibility for a fixed set of category keywords | Brand’s estimated organic clicks ÷ total estimated clicks for all tracked brands × 100 |
| Paid search | Paid ad impressions on category keywords | Brand paid impressions ÷ total paid impressions for all tracked brands × 100 |
A close relative is share of search, which counts how often people search for your brand by name compared with competitors. SOV is mostly what brands put out; share of search is what people go looking for. When the two move together, visibility is creating interest.
How do you calculate share of voice?
The formula is SOV = brand volume ÷ total category volume × 100, where volume is spend, mentions, impressions or clicks depending on the channel. The total must include every brand in your competitor set, including your own.
Worked example: four brands, one quarter
The numbers below are illustrative. Four brands compete in a beverage category, and you count the social and media mentions of each over one quarter.
| Brand | Mentions | SOV | Market share | ESOV |
|---|---|---|---|---|
| Brand A | 4,800 | 40% | 46% | −6 points |
| Brand B | 3,600 | 30% | 24% | +6 points |
| Brand C | 2,160 | 18% | 16% | +2 points |
| Brand D | 1,440 | 12% | 14% | −2 points |
| Total | 12,000 | 100% | 100% |
The category total is 4,800 + 3,600 + 2,160 + 1,440 = 12,000 mentions. Brand A’s SOV is 4,800 ÷ 12,000 × 100 = 40%. Brand B’s is 3,600 ÷ 12,000 = 30%, Brand C’s 2,160 ÷ 12,000 = 18% and Brand D’s 1,440 ÷ 12,000 = 12%. The shares add to 100%, a quick check on the total.
What is excess share of voice?
Excess share of voice (ESOV) compares visibility with sales: ESOV = SOV − share of market. In the example, Brand A is the market leader at 46% but holds only 40% of the conversation, so its ESOV is 40 − 46 = −6 points. Brand B is the opposite: 30 − 24 = +6 points.
A widely cited rule of thumb in advertising is that brands with positive ESOV tend to grow market share over time, and brands with negative ESOV tend to lose it. Treat it as a guide, not a law. On this reading, Brand B is the one to watch, and Brand A is not defending its lead in the conversation.
What is sentiment-weighted SOV?
Raw SOV counts every mention the same, including complaints. Sentiment-weighted SOV counts only the positive part: positive SOV = brand positive mentions ÷ total positive mentions in the category × 100.
Continuing the example, suppose 30% of Brand A’s mentions are positive and 45% of Brand B’s, with 40% for Brands C and D. That gives positive mentions of 1,440, 1,620, 864 and 576, a total of 4,500.
| Brand | SOV | Positive mentions | Positive SOV |
|---|---|---|---|
| Brand A | 40% | 1,440 | 32% |
| Brand B | 30% | 1,620 | 36% |
| Brand C | 18% | 864 | 19.2% |
| Brand D | 12% | 576 | 12.8% |
Brand A leads on volume, but Brand B leads on positive conversation (1,620 ÷ 4,500 = 36%). A volume lead built on complaints is not a lead you want.
How do you measure SOV step by step?
- Fix the competitor set. Choose the brands your customers actually consider, and keep the list the same every period.
- Choose channels and define volume. Decide whether you count spend, mentions, impressions or clicks, and write the rule down.
- Set the period and sources. Use public and first-party sources only, such as published ads, press, public social posts and search data. Competitive intelligence should stay legal and ethical.
- Count, clean and classify. Remove duplicates and irrelevant mentions, such as a brand name that is also a common word, then code sentiment.
- Calculate and trend. Compute each brand’s share per channel, then compare it with the previous periods and with market share.
The competitor analysis framework helps you decide which rivals belong in step 1. For steps 4 and 5, you can track brand health, consideration, sentiment and competitors continuously so each period’s figures sit next to the last.
How does share of voice relate to brand tracking?
SOV tells you how loud you are. Brand tracking tells you whether anyone is listening. Put it next to the brand health tracking metrics from your survey: aided awareness, consideration and preference by brand and wave.
In multi-brand categories we often see the same pattern. A brand’s SOV rises for two quarters, but consideration does not move, which usually means the message is reaching people without giving them a reason to choose. When SOV and consideration rise together, the visibility is working.
What are the limits of SOV?
- Volume is not quality. A viral complaint and a glowing review count the same in raw SOV.
- Channel bias. Social mentions favor brands with young, online audiences; press favors brands with news. One channel rarely represents the market.
- The total depends on the set. Add or drop a competitor and every share changes, even if nothing happened in the market.
- It does not show cause. SOV can rise because a competitor went quiet, not because you did more.
What are the common mistakes?
- Reporting one channel as the whole SOV. Name the channel, or report several.
- Changing the competitor set mid-series. The trend breaks and looks like real movement.
- Counting irrelevant mentions. Brand names that are common words inflate volume unless you filter them.
- Ignoring sentiment. A crisis can make a brand the category leader in SOV for a month.
- Judging it without market share. Without ESOV you cannot tell whether 30% is strong or weak for that brand.
What should you do with your SOV numbers?
Start with one channel you can measure reliably each quarter, add market share to get ESOV, and put both next to your awareness and consideration data. Bring the results into a regular competitive intelligence report, and if you want that review to happen on a schedule, a competitive review run as a governed workflow with a person approving keeps it consistent from one quarter to the next.