YardDogs -
Whether you're talking to investors, tenants, brokers, or your own team, a few sharp stats can go a long way toward sealing the deal.
So we pulled together 5 IOS stats worth quoting — and why they matter.
IOS STATS
5 IOS Stats Worth Quoting
1. Market Size: $300+ Billion
The U.S. IOS market is estimated to be worth over $300 billion and growing — larger than the self-storage sector (~$60B).

2. Historic Cap Rate Premium: 50–100 bps
IOS has historically traded at a 50–100 basis point cap rate premium over traditional industrial.
Why? Smaller deal sizes, fragmented ownership, and limited data. But as the space matures, that premium may narrow — and early movers could benefit.
3. National Vacancy Rate: 4.2%
National IOS vacancy hovers around 4.2%, compared to 6.6% for traditional warehouse space.
Good IOS sites don’t sit long — and rents have steadily increased year over year.
4. Fragmented Ownership: <10% by Institutions
Institutions own less than 10% of all IOS properties.

What inning are we in? It’s early in the ballgame — we’re still making our first trip through the lineup.
5. Share of the Alternatives Market: 2%
IOS makes up 2% of the alternatives universe — roughly the same as Cold Storage and Life Sciences combined.
Keep these stats in your back pocket and lead the conversation.
New to IOS?
Start with our guide: What is Industrial Outdoor Storage?
Got Deals
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Disclaimer: The authors of IOS YardDogs are not finance or tax experts. We love big yards, small buildings. This email is for educational uses and is not financial / investment advice. Please conduct independent research and consult with industry professionals before making financial or investment decisions. Our content, which may contain affiliate links, is subjective and not to be used as the only basis for such decisions. We are not responsible for any losses from relying on this information.