Open rating

A state rating system that allows the insurer to use rates without prior approval. Also referred to as open competition.
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A system wherein the insurer is allowed by the state to use rates that were not previously approved.
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A type of rate regulation under which the regulator relies primarily upon competition to keep rates reasonable adequate, and not unfairly discriminatory.

Open Slip

A form of slip used to cover a merchant contractor with a large contract to fulfill by several shipments, the total value of which is known in advance. Each shipment is declared and policies issued until the insured value is exhausted.

Open Year

An underwriting year which is not closed under the system of fund accounting. Typically no contribution to profit is removed from an open year, but any identified deficiency is offset by the use of external funds.

Open year of account

A year of account of a syndicate which has not been closed by reinsurance to close. There are two types of open year of account; naturally open years of account and run-off accounts. Syndicates are required to keep each year of account open for a minimum of three years before it may be closed by reinsurance to close. In normal circumstances a syndicate will therefore have three naturally open years of account at any point in time: the third year of one year of account, the second year of the following year of account; and the first year of the next year of account. Thus in 2005 the 2003 year of account is in its third year, the 2004 year of account is in its second year and the 2005 year of account is in its first year. Where the liabilities attaching to a particular year of account of a syndicate (including any prior year of account closed into that year) cannot be quantified after three years then that year of account will be left open until such time as a reinsurance to close may be effected or all the liabilities attaching to that year of account are extinguished.

Operating Cash Flow

Measures the funds generated from insurance operations which includes the change in cash and invested assets attributed to underwriting activities, net investment income and federal income taxes. This measure excludes stockholder dividends, capital contributions, unrealized capital gains/losses and various non-insurance related transactions which affiliates. This test measures a company’s ability to meet current obligations through the internal generation of funds from insurance operations. Negative balances might indicate unprofitable underwriting results or low yielding assets.

Operating ratio

A ratio that monitors an insurer’s overall trading performance. It has three components: (a) the loss ratio, i.e. total losses and claims handling costs as a percentage of net premium income; (b) the expense ratio, i.e. underwriting expenses as a percentage of premium income; (c) investment income ratio, i.e. net investment income on funds contributed by policyholders as a percentage of net premium earned. The operating ratio is the result of deducting the investment income ratio from the sum of the loss ratio and expense ratio.
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The sum of the combined ratio plus investment income.