Williams Superyacht Intelligence — Market Index & Valuation Calculator

Independent hedonic price index and valuation calculator for the 24m+ professionally brokered superyacht market. Published by Andrew Williams, marine surveyor with 38 years of industry experience and an MBA from Warwick Business School.

Superyacht Valuation Calculator

Estimate the market value of a superyacht using a hedonic regression model calibrated against 307 motor yacht listings and 59 sailing yacht listings across seven major brokerages. The motor model achieves R²=0.916 — comparable to published residential property indices. Inputs: LOA, year built, and builder tier. Output: asking price estimate with ±1 standard deviation range and estimated transaction price.

WSMI — Williams Superyacht Market Intelligence Index

The inaugural Q1 2026 edition establishes a baseline index of 100.0 across all size bands and both motor and sail segments. Dataset covers 366 listings from Burgess Yachts, Camper & Nicholsons, Edmiston, Fraser Yachts, Y.CO, Denison Yachting, and Moran Yacht & Ship. Total survey fleet value: motor €6.60bn + sail €0.64bn = €7.24bn asking.

Key Model Findings — Q1 2026

Superyacht Depreciation Analysis

Empirical depreciation curves derived from the hedonic model show approximately 7.4% annual value loss from new, decelerating with age. Both ultra-premium and mid-tier builder segments follow identical depreciation trajectories — the builder premium is applied as a multiplier at point of sale, not as a depreciation rate modifier. Full depreciation charts available at williamsyachtintelligence.com/depreciation.

About

Williams Superyacht Intelligence is operated by Andrew Williams. Andrew holds 38 years of marine industry experience, 26 of which are in the superyacht sector. He is a Cayman Islands Shipping Registry surveyor and an ICOMIA representative at the International Maritime Organization (IMO). His original hedonic regression model for the superyacht market was developed in a 2007 Warwick Business School MBA dissertation and published in The Yacht Report (Issue 115, 2010).

The WSMI platform operates independently of all brokerages. For professional use. Full methodology and downloadable Q1 2026 report available at williamsyachtintelligence.com.