The Dow Jones came off its record breaking run on Monday and drugs firm Allergan PLC (NYSE:AGN) was in focus after the bell, adding 0.38% in extended deals.
Looking ahead for fiscal 2018, it is forecasting continued cost cuts and an US$0.84 loss per share. Shares lost about 20% last year but are up more than 4% so far in the new year.
Elsewhere, Urban Outfitters Inc (NASDAQ:URBN) shares shed 2.22% after the bell at US$32.99 after it reported festive sales, which disappointed the market.
The firm saw year-over-year same-store sales fall about 1% and double-digit sales in the direct-to-consumer channel that was offset by negative sales in-stores.
Meanwhile, data storage firm Seagate Technology PLC (NASDAQ:STX) added 2.72% after the bell to US$47.25 after it posted second quarter financial guidance, which beat analyst expectations.
The group also announced the completion of a long-term supply deal with Toshiba.
Ohio-based A. Schulman Inc (NASDAQ:SHLM) shot up 5.66% after the bell to US$41.10 as the plastics maker reported first quarter financial results that included 12% growth in net sales year-over-year.