The majority-American owned venture operating the new app revised the algorithm originally developed by China-based ByteDance.
Appropriators introduced a short-term funding bill that would extend operations to Dec. 4.
Iran retaliated with attacks on Middle East nations hosting U.S. military assets.
The sell-off in tech stocks came despite cooling inflation at both the retail and wholesale levels, which eased fears of an Federal Reserve interest rate hike.

The Trump administration argued it was allowed to fire the FEMA official under Article II of the U.S. Constitution.
Darline Nordone Graham was sworn in as Lindsey Graham’s replacement on July 14.
The current system gives many students no fixed departure date. The new rule says that after four years, a student must apply for an extension.
The social media platform offered to deactivate problem accounts and has already done so in some cases, the mayor said.
Many of the most affordable college towns were in the Midwest and South, Redfin found.
The Trump administration had sought to implement a six-figure fee for H-1B visa applications, but a federal judge blocked the move.
The president made comments about U.S. operations against Iran during a speech on Thursday evening.
The interactive map and linked press releases centralize the volume of recent litigation and immigration-related arrests in one place.
The defense portion includes $21 billion to replace munitions and restock supplies and $17.3 billion for operational costs.
The chikungunya virus can cause symptoms including fever, muscle pain, nausea, fatigue, and a rash, officials say.
Earlier this week, Trump said that the address will concern voter integrity and related matters.
A call from a mother concerned about her son’s anti-government conspiracy theories turned into a national terror probe.
The U.S. president said a U.S. citizen who had been wrongfully detained in Iran since December 2024 has been released and is safely out of the country.
‘With transnational repression on the rise, it is critical that we take strong action to investigate and prosecute bad actors,’ Sen. Adam Schiff said.
Dr. Erica Schwartz said that she will stand up for what is right.