Exchange Rates and Art Prices

⁰¹Exchange rates and art prices interact because the art market often sells in one currency to buyers who hold another. A painting offered in London is sold in sterling, one in New York in US dollars, one in Hong Kong in Hong Kong dollars and one in Paris in euros, while the bidders may be based anywhere.

⁰²Each overseas bidder is therefore making two decisions at once: how much the work is worth to them, and what that amount costs in their own currency. When rates move, the second part of the decision changes even if the first does not.

⁰¹A weaker local currency makes a sale cheaper for overseas buyers, and a stronger one makes it dearer. That can encourage or discourage foreign bidding at the margin, and it is sometimes cited in commentary on a particular season's results.

⁰²Not every currency floats freely against every other. The Hong Kong dollar, for example, is linked to the US dollar, so a dollar-based bidder in a Hong Kong sale faces little of the movement that a bidder converting from sterling or euros might face. The relevant question is always the rate between the sale currency and the currency the bidder actually holds.

⁰³The effect should not be overstated. Wealth, sentiment, the quality of works on offer and the depth of competition for a specific lot usually matter more than currency. A sharp currency move can tip decisions for some bidders; it rarely explains a whole market on its own.

⁰⁴Timing adds risk. The bid is made in the sale currency, but payment is due later, and the rate can move in between. Buyers also face conversion costs from their bank or payment provider. Conditions of sale at the major houses generally make the sale currency binding, with any converted figures shown in the saleroom or online offered for guidance only.

⁰⁵Sellers face the mirror image. Proceeds are paid in the sale currency, so a consignor based elsewhere carries currency risk from the sale date until the funds are converted, alongside the settlement timing set out in the consignment terms.

⁰¹Houses report lot results in the currency of the sale. When they publish totals across salerooms, or when databases, indices and annual reports combine results from several countries, the figures have to be converted into a single currency, often the US dollar.

⁰²There is no single convention for doing that. A conversion might use the rate on the sale date, an average rate for the period or the rate on the day the figure was compiled. Each is defensible, and each produces a different number. Two sources reporting the same sale can disagree without either being wrong.

⁰³Market-wide reports usually explain their conversion method in a methodology note. That note is worth reading whenever figures from different sources are placed side by side.

⁰¹Converted prices can create apparent movements that are really exchange-rate effects. The common versions are easy to spot once named.

⁰²The safer practice is to compare results in the currency in which they were sold, then consider currency separately as a factor, rather than converting everything first and reading the converted series as a price trend.

⁰¹For a bidder, the useful discipline is to set a maximum in the sale currency after allowing for the buyer's premium, taxes, shipping and conversion costs. A limit fixed only in the home currency can be exceeded without anyone noticing if the rate moves during the sale period.

⁰²Bidding online or by telephone from abroad makes this easy to overlook, because converted figures on screen can feel like the price. They are an aid, not the contract.

⁰³Some buyers manage currency exposure through their bank's foreign-exchange services when a large payment is expected. Whether that is appropriate depends on individual circumstances and is a question for a qualified financial adviser, not something a catalogue or an article can settle.

⁰⁴For a seller with a choice of sale location, currency is one factor alongside where the most likely buyers are, which saleroom is strong in the category and how the proceeds will be used. Currency expectations are a weak basis for that choice on their own, since rates can move between consignment and sale.

⁰¹A converted price is a translation, not a new piece of evidence. It shows what the original result amounts to in another currency at a chosen rate. It does not show that the work became more or less valuable, and it does not show what a buyer in that currency actually paid.

⁰²Reading art prices across borders therefore begins with the original figure, its currency and its date. Everything added afterwards should be visible and explained, so the reader can separate the market signal from the arithmetic.

⁰³The same applies to indices and market totals expressed in a single currency. Part of any change they report may be currency rather than art, and the better reports separate the two, or at least say which currency effects might be at work.