https://www.insurerbrain.com/w/index.php?action=history&feed=atom&title=Definition%3AProportional_reinsurance 2026-04-29T01:28:52Z Revision history for this page on the wiki MediaWiki 1.43.8 https://www.insurerbrain.com/w/index.php?title=Definition:Proportional_reinsurance&diff=7053&oldid=prev 2026-03-10T05:07:40Z

<p>Bot: Creating new article from JSON</p> <p><b>New page</b></p><div>📊 &#039;&#039;&#039;Proportional reinsurance&#039;&#039;&#039; is a [[Definition:Reinsurance | reinsurance]] arrangement in which the [[Definition:Ceding company | ceding company]] and the [[Definition:Reinsurer | reinsurer]] share [[Definition:Premium | premiums]] and [[Definition:Loss | losses]] according to a predetermined percentage or defined proportion. Unlike [[Definition:Non-proportional reinsurance | non-proportional reinsurance]], where the reinsurer responds only after losses exceed a specified threshold, proportional treaties embed the reinsurer in every risk from the first dollar, creating a tightly aligned economic relationship between the two parties. The two primary structures are [[Definition:Quota share | quota share]] and [[Definition:Surplus share | surplus share]] treaties, each offering different degrees of flexibility in how risk is divided.<br /> <br /> 🔄 Under a typical proportional treaty, the ceding insurer transfers an agreed share of each policy&#039;s premium to the reinsurer, who in return assumes the same share of every covered loss. The reinsurer also pays the cedent a [[Definition:Ceding commission | ceding commission]] to compensate for [[Definition:Acquisition cost | acquisition costs]] and administrative expenses. Because the reinsurer&#039;s fortunes mirror the cedent&#039;s book of business on a pro-rata basis, proportional treaties encourage close collaboration on [[Definition:Underwriting | underwriting]] standards, [[Definition:Pricing | pricing]] adequacy, and [[Definition:Portfolio management | portfolio]] composition — the reinsurer has a direct financial interest in the quality of every risk written.<br /> <br /> 💡 For primary [[Definition:Insurance carrier | carriers]], proportional reinsurance serves as a powerful tool for managing [[Definition:Solvency | solvency]] ratios, smoothing earnings volatility, and expanding [[Definition:Underwriting capacity | underwriting capacity]] without raising additional [[Definition:Capital | capital]]. Newer or smaller insurers frequently rely on quota share treaties to enter lines of business they could not support on their own balance sheet, while [[Definition:Surplus share | surplus share]] arrangements let more established companies retain profitable smaller risks and cede only the larger exposures. Regulators and [[Definition:Rating agency | rating agencies]] scrutinize these structures closely because the degree of risk transfer directly affects the cedent&#039;s reported [[Definition:Reserve | reserves]] and capital adequacy.<br /> <br /> &#039;&#039;&#039;Related concepts&#039;&#039;&#039;<br /> {{Div col|colwidth=20em}}<br /> * [[Definition:Quota share]]<br /> * [[Definition:Surplus share]]<br /> * [[Definition:Non-proportional reinsurance]]<br /> * [[Definition:Ceding commission]]<br /> * [[Definition:Reinsurance treaty]]<br /> * [[Definition:Retrocession]]<br /> {{Div col end}}</div>

PlumBot