New Delhi, June 23 -- SpaceX is heading for a fourth day of losses as investors grow worried about the company amid a broader sell-off in technology stocks. The stock fell about 3% to $150 in pre-market trading, putting it on track to slip below $2 trillion in market capitalization.

After a record $75 billion IPO last week and an initial rally in the stock, investor sentiment has started to weaken. Concerns are rising that enthusiasm around AI-related investments may have gone too far.

In total, SpaceX has shed more than $600 billion in value after falling for three straight sessions. Monday's 16% plunge in the stock erased about $400 billion, marking the second-largest one-day loss on record. Only Nvidia Corp.'s roughly $590 billion pl...