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Difference between penetration rate and market share?

Market penetration Market share
New answer on Aug 21, 2021
2 Answers
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Anonymous A asked on Aug 21, 2021

Hi, 

I would like to know what is the difference between penetration rate and market share?

Thank you.

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Agrim
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updated an answer on Aug 21, 2021
BCG Dubai Project Leader | Learn to think like a Consultant | Free personalised prep plan | 6+ years in Consulting

Some more context would have been helpful. However, basic definition of the items can be the following. I have taken the example of COVID vaccines to make it easier to understand.

  • Market Penetration: How much percentage of vaccine eligible people have actually got a vaccine. In other words - what is the ‘penetration’ of COVID vaccines in the market.
  • Market Share: How much percentage people got the Pfizer vaccine, Astra-Zeneca vaccine, J&J vaccine etc. In other words - what is the market share of each vaccine.

This diagram below illustrates this concept.

PL Q diagram.png

(edited)

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Ian
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replied on Aug 21, 2021
#1 BCG coach | MBB | Tier 2 | Digital, Tech, Platinion | 100% personal success rate (8/8) | 95% candidate success rate

Hi there,

Think of penetration rate as the “macro” or big picture view. Of all the people who could use the product (i.e. the TAM), it's the % of people actually using it. This represents missed (or potential) opportunity.

Market share is of that captured market (TAM times penetration rate), what % do you specifically get? All competitors' market share should add up to the current market size.

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Agrim

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