Share of voice (SOV) measures how much of the total media conversation about your sector features your brand compared to competitors. When calculated consistently, it is one of the most useful metrics in PR measurement. When calculated poorly, it produces numbers that mislead leadership and undermine credibility. This guide covers the exact calculation method, quality weighting, and the common errors UK comms teams make.
The Basic Calculation
Share of voice = (Your brand mentions / Total mentions for all brands in the set) x 100
If your monitoring platform captures 200 total mentions across your brand and four competitors in a given month, and 48 of those are about your brand, your raw share of voice is 24%.
This basic calculation is a starting point, but it treats a BBC News feature and a syndicated wire story on a low-traffic content aggregator as equal. They are not.
Step 1: Fix the Competitor Set
Pick three to six competitors. More than six creates noise and makes the chart hard to read. Fewer than three limits the analytical value.
Selection criteria:
- Direct competitors that your leadership compares against commercially
- Narrative competitors that compete for the same media attention, even if they are in adjacent markets
- Optionally, one aspirational benchmark -- an organisation that represents best-in-class communications in your sector
Example for a UK insurer: Direct competitors might be Aviva, Legal & General, and Zurich. An aspirational benchmark could be Admiral (consistently strong consumer trust messaging). A narrative competitor might be a large fintech entering insurance.
Lock the set for at least one quarter. If you change the competitor set month to month, trend analysis is meaningless.
Step 2: Define Inclusion Rules
Document exactly what counts toward SOV:
- Source types: Specify which outlet categories are included (national press, trade press, broadcast, regional, digital). Exclude social media unless you track it as a separate SOV metric.
- Geography: UK-only, or including international coverage? Most UK corporate programmes track UK SOV separately from global.
- Content types: Include news articles, features, and opinion columns. Exclude press release syndication, job listings, and company directory entries. In Meltwater and Cision, you can filter by content type.
- Time window: Use calendar months or quarters. Compare like with like -- do not compare a three-week December period against a full January.
Write these rules down and append them to your reporting methodology. When someone questions the numbers in six months, the documented rules are your defence.
Step 3: Add Quality Weighting
Quality weighting is the single most important improvement you can make to SOV reporting. Without it, a brand that generates 50 syndicated wire stories outscores a brand that lands a front-page FT feature and a BBC News interview.
Three-Tier Weighting Model
| Tier | UK examples | Weight multiplier | |---|---|---| | Tier 1 | BBC, Sky News, FT, Guardian, Times, Telegraph, Daily Mail | 3x | | Tier 2 | Trade titles (Insurance Times, Citywire, PR Week, The Grocer, Health Service Journal), major regionals (Evening Standard, Scotsman) | 2x | | Tier 3 | Smaller regionals, niche digital, low-reach aggregators | 1x |
Quality-weighted SOV = (Sum of weighted mentions for your brand) / (Sum of weighted mentions for all brands) x 100
Worked example:
Your brand in one month:
- 3 Tier 1 mentions (3 x 3 = 9 weighted points)
- 8 Tier 2 mentions (8 x 2 = 16 weighted points)
- 12 Tier 3 mentions (12 x 1 = 12 weighted points)
- Total: 37 weighted points
Total for all brands in the set: 152 weighted points
Quality-weighted SOV = (37 / 152) x 100 = 24.3%
Compare this against the raw SOV: if your raw count was 23 out of 145 total mentions = 15.9%. The quality weighting shows you are performing better in high-influence outlets than raw volume suggests.
Most platforms support this. In Meltwater, use custom tags or source groups to assign tiers. In Signal AI, use source-level metadata. In Cision, set up outlet groups in the analytics module.
Step 4: Normalise for Outliers
Certain events can distort SOV temporarily:
- A competitor crisis floods the data with negative coverage -- their SOV spikes, but that is not a communications success
- Your own crisis inflates your SOV while sentiment is negative
- A single wire story syndicated across 30 sites inflates Tier 3 volume
Mitigations:
- Exclude crisis periods from routine reporting and analyse them separately
- Enable deduplication in your monitoring platform to collapse wire story copies
- Report sentiment alongside SOV so that high-volume negative coverage is flagged, not celebrated
Step 5: Report With Narrative
The number alone is not useful. Always accompany SOV reporting with a short narrative.
Format for leadership:
This month: Our quality-weighted share of voice was 26%, up from 22% last month. The increase was driven by FT and Times coverage of our Q3 results and a BBC interview with our CEO on consumer duty. Competitor X dropped from 31% to 24% following reduced media activity post-restructuring. Action: Sustain results-period visibility with a follow-up data study pitching to trade titles.
Common Mistake: The Moving Goalposts
A UK financial services team reported SOV monthly but changed the competitor set three times in six months (adding new entrants, removing acquired firms, and switching between UK-only and global scope). When the CCO asked "are we gaining or losing share of voice?" nobody could give a credible answer because the baseline had shifted with every change. The fix: lock the competitor set for a quarter, document any changes with a clear rationale, and show a restated comparison when the set changes so trends remain readable.
Reporting Cadence
- Monthly to the comms team: Full SOV data with quality weighting, sentiment overlay, and narrative
- Quarterly to leadership: One-page summary with quality-weighted SOV, trend direction, top competitors, and recommended actions
- Ad hoc after major campaigns or crises: SOV comparison pre/post event to quantify impact
Integration With Other Metrics
SOV is most powerful when paired with:
- Message pull-through: High SOV with low message pull-through means you are visible but not shaping the narrative
- Sentiment trend: High SOV with rising negative sentiment is a warning sign, not a win
- Business proxy: Track whether SOV gains correlate with website traffic from earned media, inbound enquiries, or recruitment applications
Together, these four metrics give leadership a complete picture of competitive media positioning.
FAQ
How often should share of voice be reported?
Monthly or quarterly is usually enough for strategic decisions.
Should we include paid media?
Only if you can clearly separate it from earned coverage and keep the methodology consistent.
How many competitors should we include?
Three to six is a practical range for reliable comparisons.
Is share of voice the same as market share?
No. It measures visibility and narrative presence, not sales or revenue.