Aurubis Filings Reveal How Much of BNP and Goldman Exposure Is Synthetic

Two European banks have disclosed sizeable positions in Aurubis, but the headline percentages tell only part of the story. BNP Paribas reported a total holding of 5.33% on October 30, while Goldman Sachs filed a reduced 6.53% on Friday — and in both cases, a large share of the exposure comes from financial instruments rather than directly held shares.

Why BNP's Filing Appeared at All

BNP Paribas attributed its disclosure to the non-application of the trading book exemption, not to any purchase of stock. The threshold crossing it reported took place on October 26. Of the 5.33% total, 2.93% stemmed from voting rights attached to shares, with the remaining 2.40% held through instruments. The French lender's equity component therefore outweighed its instrument position.

Goldman's Shifting Footprint

Goldman Sachs has filed a series of updates that trace a position moving in both directions. A filing dated October 29 showed the total climbing to 10.28% from a previously reported 9.10%, with the relevant threshold crossed on October 22. A subsequent disclosure published November 2 put the aggregate at 10.99%, of which 10.79% sat in instruments, again citing October 26 as the crossing date. That earlier filing had listed share-based voting rights of 0.20% alongside the 10.79% instrument figure.

Friday's notice brought the total down to 6.53%, split between 0.17% in voting rights from shares and 6.36% in instruments, with the threshold crossed on October 30. As with BNP, the bulk of Goldman's reported exposure is synthetic — meaning the aggregate figure cannot be read as a direct equity stake.

What Comes Next for Aurubis

The filings document differing snapshots of each bank's position at the dates specified, rather than a single continuous holding. Investors looking for the next hard data point from the copper producer will have to wait: Aurubis has scheduled publication of its annual financial report for December 2, 2026.