Big Tech, Chip Stocks Slide Again As Trump Moves To Blockade Strait Of Hormuz After Failed Peace Talks With Iran

Micron shares declined 2%; SNDK gained after the news about the stock securing a place in the Nasdaq-100 index.
Stock market numbers are displayed as traders work on the floor of the New York Stock Exchange. (Photo by Michael M. Santiago/Getty Images)
Stock market numbers are displayed as traders work on the floor of the New York Stock Exchange. (Photo by Michael M. Santiago/Getty Images)
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Yuvraj Malik·Stocktwits
Published Apr 13, 2026   |   5:52 AM EDT
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  • Major tech stocks declined in Monday’s premarket sessions after a change in posture in Iran-war talks.
  • Peace talks between the two sides in Pakistan failed, and the U.S. has said it will blockade the Strait of Hormuz starting Monday.
  • Meta and Amazon declined 1.4%. Apple, Tesla, and Microsoft were down under 1%. 

Big Tech and major semiconductor stocks fell in early premarket trading on Monday, after the talks between the U.S. and Iran to end the war failed and the U.S. said it would move to blockade the Strait of Hormuz.

Micron led the decline, falling nearly 2%, while shares of Nvidia, Intel, Advanced Micro Devices, and Taiwan Semiconductor Manufacturing were down 0.8% to 1.4%.

In the Magnificent Seven group, Meta and Amazon declined 1.4%. Apple, Tesla, and Microsoft were down by 1% or more. SanDisk was in the green, up 1.8%, after Friday’s announcement about the stock being picked to join the Nasdaq-100 index on April 20.

The new threat from the U.S. set up a risky new showdown that could draw American forces into a prolonged struggle to control the strategic chokepoint while compounding the global economic damage caused by the conflict.

U.S. stock futures tumbled early Monday, while oil rose 6.7% to $102. 

U.S.’s Renewed Offensive

U.S. Central Command said enforcement of the maritime restrictions would begin at 10 am ET on Monday, targeting the shipping of Iranian exports without applying to all traffic through the waterway. 

U.S. President Donald Trump said the action would be “very effective,” while also warning that Washington could resume limited strikes if Iran resisted the move, The Wall Street Journal noted.

If the stock moves carry over to the regular session, companies stand to lose part of the gain they managed in the latter part of last week after a temporary ceasefire between the U.S. and Iran lifted global markets and brought oil prices lower.

Retail’s View Holds Steady On Big Names

On Stocktwits, the retail sentiment for NVDA and MU remained ‘bearish,’ and remained ‘neutral’ for META, GOOGL and MSFT. The sentiment for AAPL dropped to ‘bullish’ from ‘extremely bullish.’

“NVDA market is too smart and over the roller coaster ride at this point. The dip was bought. Long term holders are holding and traders won’t be able to dampen the trend up anymore.  This dips a little PM and rallies up during open,” forecast a user.

For updates and corrections, email newsroom[at]stocktwits[dot]com.

 

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