Take context from the input text and decide on the accurate relationship between 'Arabtec' and 'Dubai' from the options provided.
Options: operator, headquarters location, industry, original broadcaster

* Stock up 150 pct since resuming trade in June * Accounted for 45 pct of Dubai's June trading volume * Follows last year's bubble in Arabtec shares * Shows institutions still not influencing trade * Dubai more modestly valued than during Arabtec debacle By Olzhas Auyezov DUBAI, July 23 (Reuters) - A surge in shares of Amlak Finance since they returned to Dubai's stock market last month has raised concerns about a new wave of unbridled speculation on one of the region's biggest exchanges.
headquarters location