His company's main product was cognac "Medicinal", which competed with French alternatives in the Austro-Hungarian monarchy and German Empire territory.

Stock eventually came to own a network of distilleries, bottling plants and ageing facilities in Italy, Austria, Poland, Hungary and Croatia.

In 2012, the Stock Spirits Group completed acquisition of Slovak company Imperator Ltd located in Drietoma, Slovakia.

[6] In the same year Stock acquired the Novel Ferm, an ethanol manufacturing business located near Rostock in North Eastern Germany.

[8] On 12 August 2021, Stock Spirits' board of directors accepted a £767 million takeover bid by private equity firm CVC Capital Partners, whereby shareholders would receive 377p per share.