Reconstructed first-round book from the research data, not a scrape of today's website. Public portfolio pages over-report winners, and this graph has the same public-data bias. Investor edges are essentially Crunchbase through late 2015, plus Y Combinator.
Research book · 3-year follow-on
Longbow Capital vs Kairos
Not ranked
Whole-book follow-on hit rate 20.0% (1 of 5 labeled deals). 95% Wilson interval 3.6%–62.4%. Vintage-weighted base rate 42.2%. This is not a fund return.
Not ranked. A book needs at least 15 labeled deals with a vintage base rate. This one has 5.
Vs same-vintage base rate
-22.2 pp
20.0% on 5 deals vs 42.2%
Vs median VC book
-33.8 pp
20.0% on 5 deals vs 53.8%
Vs top-quartile VC
-49.8 pp
20.0% on 5 deals vs 69.8%
Vs Y Combinator
-41.8 pp
20.0% on 5 deals vs 61.8%
Ranked when at least 15 labeled deals have a vintage base rate. Rank is the average-rank percentile of shrunk excess (20 pseudo-deals at that book's vintage base rate) among eligible VC books that clear the same minimum. 100 is best. The whole book is never compared to Kairos's top-50 hit rate.
What Kairos would have said
Scores are the model’s percentile at each company’s first observed funding event, not at a later round. That matches this fund’s entry only when the fund was in the first-round syndicate. A deal is flagged when its percentile clears that vintage’s top-50 cutoff. The whole book is not compared to the top-50 hit rate.
Deals with a score
5
Mean model percentile
42
Flagged deals
0no labeled flagged deals
Five-year exit, secondary
Five-year exit labels are observable mainly for 2005–2010. A missing later exit is not counted as a failure. This panel is not the ranking.
Hit rate 0.0% (0 of 5). 95% Wilson interval 0.0%–43.4%.
Vs exit base rate
-11.8 pp
0.0% on 5 deals vs 11.8%
Vs median VC exit book
—
No overlapping vintages
Vs top-quartile exit book
—
No overlapping vintages
Companies
5 labeled follow-on deals, 0 matched without an observable label (dropped, not counted as failures).
| Company | Vintage | Follow-on | Kairos percentile | Flagged |
|---|---|---|---|---|
| BioCeramic Therapeuticsbioceramictherapeutics.com | 2010 | No | 55 | — |
| PolyThericspolytherics.com | 2007 | Yes | 44 | — |
| Biotronics3Dbiotronics3d.com | 2008 | No | 41 | — |
| Domainexdomainex.co.uk | 2008 | No | 40 | — |
| RepRegenrepregen.com | 2010 | No | 32 | — |