Apple is leasing a small fleet of cars from rental company Hertz Global Holdings to test self-driving technology, Bloomberg reported on Monday.
Hertz shares were up 13.5 per cent at $10.82, while shares of Apple were slightly down.
Apple is renting Lexus RX450h sport-utility vehicles from Hertz's Donlen fleet-management unit, according to the Bloomberg report, citing documents released recently by the California Department of Motor Vehicles.
The iPhone maker is concentrating on technology for self-driving cars, Chief Executive Tim Cook said earlier this month in an interview with Bloomberg.
Hertz declined to comment, while Apple did not immediately respond to a request for comment.
Alphabet Inc's self-driving car unit Waymo announced a similar partnership with Avis Budget Group, earlier on Monday, to offer fleet support and maintenance services for its fleet of autonomous vehicles.