Share of voice

What share of voice means

Share of voice, usually abbreviated as SOV, is the percentage of measured attention that belongs to one brand within a defined competitive set, channel, geography, and period.

The measured unit can be:

• Brand mentions
• Social posts
• Comments
• Advertising impressions
• Advertising spend
• Creator content
• Media coverage

The numerator and denominator must use the same unit. Mention-based SOV cannot be compared directly with impression-based SOV, for example.

The basic formula is:

Share of voice = brand volume ÷ total volume for the competitive set × 100

If a brand generated 35,000 mentions and all monitored brands generated 100,000 mentions, the brand's share of voice was 35%.

Defining the denominator

The denominator determines what the result means. A valid SOV calculation requires four explicit boundaries:

1. Competitive set: The brands included in the comparison.
2. Surface or channel: The sources being measured, such as organic social posts, paid ads, or creator partnerships.
3. Market: The relevant geography, language, product category, or customer segment.
4. Time window: The week, month, quarter, or other period covered.

A statement such as “Brand A has 35% share of voice” is incomplete unless those boundaries are known. The same brand might have 35% SOV among five direct competitors on European social media but only 8% across the wider global beauty category.

A focused set of direct competitors usually produces a more actionable measure than a broad list of loosely related companies. The list should also remain stable when comparing periods. Adding or removing a large competitor can change every brand's SOV even when their underlying volumes do not change.

Worked example

Suppose a team monitors five mid-cap beauty brands operating in Europe. It counts qualifying brand mentions across the same social and editorial sources in two consecutive quarters.

For Q1 2026:

35,000 ÷ 100,000 × 100 = 35% SOV

The brand gained 7 percentage points of share of voice, moving from 28% to 35%. Its absolute mention volume increased by 56.25%, while total category volume increased by 25%.

This distinction is the main reason to use SOV. Absolute volume shows that the brand received more attention. Share of voice shows that it also grew faster than the monitored competitive set.

If both the brand and the category had doubled, the brand's absolute volume would have risen sharply while its SOV remained unchanged. In that case, the brand would have benefited from category growth without gaining relative attention.

When to use share of voice

SOV is useful when the question is comparative:

• Did a campaign increase the brand's visibility relative to competitors?
• Is the brand gaining or losing attention over time?
• Did a product launch expand the brand's presence, or did the whole category rise together?
• Is a gain concentrated in organic coverage, paid advertising, or creator activity?
• Which competitors account for most of the category conversation?

Weekly or monthly tracking is often useful for active campaigns. Quarterly tracking can provide a steadier view in categories with lower conversation volume. The reporting interval should be long enough to avoid drawing conclusions from isolated spikes.

How to interpret it

A rising SOV means the brand accounts for a larger proportion of the measured activity. It does not, by itself, show that the attention was favorable, persuasive, or commercially valuable.

A brand can gain SOV because of a successful launch, a large paid campaign, extensive creator coverage, or a reputational crisis. SOV should therefore be read alongside measures such as sentiment, engagement, reach, conversion, and the balance between organic and paid activity.

Percentage points and percent change should not be confused. A move from 28% to 35% is a gain of 7 percentage points. Relative to the original 28%, it is a 25% increase in SOV.

Measurement cautions

A reliable SOV comparison depends on consistent data collection. Common sources of distortion include:

• Changing the competitor list between periods
• Comparing different channels or geographic markets
• Mixing mentions, impressions, and spend in one calculation
• Including duplicate or irrelevant mentions for some brands but not others
• Treating missing platform data as zero activity
• Comparing unique posts in one period with total brand mentions in another

The counting rule must also be explicit. If one post names two monitored brands, a mention-based system may count one mention for each brand. That is valid when applied consistently, but the denominator then represents total brand mentions rather than unique posts.

SOV should not be confused with advertising impression share. Some advertising platforms calculate impression share against the impressions an advertiser was eligible to receive, not the summed impressions of a fixed competitor set. The metrics may answer related questions, but their denominators are different.

How Sentia uses it

Sentia calculates share of voice within a monitor using the competitor list defined by the user. It applies the same selected period and measurement basis to the focal brand and its competitors.

SOV can be split by surface, including organic posts, paid ads, and creator partnerships. This makes a change easier to diagnose. For example, a 7 percentage-point gain may reflect broader organic conversation, increased advertising activity, additional creator coverage, or a combination of those sources.

Related concepts

• EMV
• Calibration
• Cohort benchmarking
• Organic vs paid mention