Taiwan's stock market opened down hard Thursday, a bad start for investors as oil prices and the US selloff spill over.

• The index opened lower and quickly widened its losses, dropping more than 400 points and slipping under the 47,000 mark.
• The trigger came from Wall Street, where all three main US indices closed down for a third straight day.
• Oil pushed past $100 a barrel as the US-Iran conflict heats up, while Apple's stock fell and US government bond yields rose.
• Taiwan's biggest names all opened in the red, including TSMC, MediaTek and Foxconn.

Outlook: Unless the oil spike and the US selloff ease, Taiwan's market is likely to stay under pressure in the coming sessions.