Quarterly indices: Market insights

Since 2002, Troostwijk has been developing annual and quarterly indices specifically for the insurance industry. These indices are compiled based on multiple independent information sources and provide an objective and representative picture of market developments. The figures are generally applicable and not linked to a specific property type or industry.

With the Troostwijk Index Newsletter, you receive the latest quarterly indices free of charge, well before their official publication. After a one-time registration, you may also use the indices without requiring attribution. This provides you with timely, reliable market data to make informed decisions.

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Indices 1st quarter 2026

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Business inventory
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Business building/office
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Residential construction
Terms of UseAlle quarterly indices

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Terms of Use

  • If you have not completed the Troostwijk Index form, please state the source. Reproduction for personal or internal use is permitted.
  • When determining the quarterly indices, Troostwijk uses various information channels and sources. An average index figure is obtained from these sources.
  • The quarterly indices Troostwijk provides are general figures and not related to a specific type of real estate or industry.
  • The content of the website and the quarterly indices have been compiled with the utmost care.
  • The content is regularly checked and updated. However, Troostwijk cannot be held liable for the accuracy, completeness, or currency of the website or the quarterly indices.
  • In particular, Troostwijk cannot be held liable for any damage or consequences arising from the direct or indirect use of the website’s content.

Stay informed about market developments in the insurance industry and be the first to receive the latest Troostwijk index figures via the Index Newsletter. 

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