In simple terms
The essentials
Insurance — Reinsurance is part of Financial Services. Start with the points below: they show what can make these companies' results stronger or weaker. You do not need to read every chart.
1Rate versus Risk
2Capital Supply
3Catastrophe Modeling
More detail
Reinsurance sits one layer above primary insurance, absorbing peak risk and smoothing industry capacity. It is a wholesale balance-sheet business where pricing, attachment points, retrocession access, and catastrophe modeling matter far more than brand recognition. Investors usually watch whether reinsurers are being paid enough for tail risk and whether capital is entering the market too quickly after profitable years.
Real Numbers
Insurance — Reinsurance at a glance
Dedicated capital
Dedicated reinsurance capital at January 1 2025 according to Guy Carpenter.
$607B
Expected ROE
Projected average reinsurer ROE in Guy Carpenter's January 2025 renewal commentary.
17.3%
Premium growth
Swiss Re says reinsurance premiums grew at roughly 7% CAGR over the past decade.
7% CAGR
Traditional capital
Swiss Re estimate of global traditional reinsurance capital in 2025.
~$500B
What can change the picture
Things worth watching
A reinsurer can grow quickly in a hard market, but the key question is whether pricing actually clears the true tail-risk hurdle.
Alternative capital, retrocession, and new entrants can compress pricing before underlying risk is fully normalized.
The quality of model assumptions and portfolio construction drives whether headline combined ratios are durable.
How the business works
Reinsurance sells capacity exactly where the system becomes least comfortable
$607B
Dedicated capital
Dedicated reinsurance capital at January 1 2025 according to Guy Carpenter.
17.3%
Expected ROE
Projected average reinsurer ROE in Guy Carpenter's January 2025 renewal commentary.
7% CAGR
Premium growth
Swiss Re says reinsurance premiums grew at roughly 7% CAGR over the past decade.
~$500B
Traditional capital
Swiss Re estimate of global traditional reinsurance capital in 2025.
Layer 1
Portfolio intake
Primary carriers cede blocks of catastrophe, specialty, casualty, or life risk.
Layer 2
Treaty pricing
The reinsurer prices attachment points, limits, terms, and reinstatements against modeled loss distributions.
Layer 3
Retrocession and capital structuring
Part of the risk can be laid off again through retrocession or capital-markets structures.
Layer 4
Loss absorption
When events hit, the reinsurer provides the balance-sheet shock absorber for the rest of the chain.
Explore the sector
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