Nov 18 (Reuters) - A federal judge ruling that Meta

Platforms ( META ) does not hold an illegal social media

monopoly handed Big Tech its first decisive win against the

antitrust crackdown started in President Donald Trump's first

term.

Here are the statuses of the U.S. antitrust cases or probes

against some of the world's most valuable companies: Alphabet's

Google, Meta Platforms ( META ), Apple ( AAPL ),

Amazon ( AMZN ), Microsoft ( MSFT ) and Nvidia ( NVDA ).

GOOGLE

The internet juggernaut is fighting the U.S. Department of

Justice and state enforcers on two fronts. In one case, a judge

in Washington ruled the company will have to share data with

competitors to open up competition in online search and barred

Google from entering exclusive agreements that would prohibit

device makers from preinstalling rival products on new devices.

Google has already hired a former Obama official to represent it

in an appeals process which could take years.

The judge ruled, though, that Google would not have to sell its

popular Chrome browser and Android operating system.

While Google will likely get a reprieve from complying with the

ruling until the appeal is over, the search landscape has

already started to shift, with Google preemptively loosening its

deals with device makers and wireless carriers, and Apple ( AAPL ) saying

it plans to add search options fueled by artificial

intelligence.

Meanwhile, a final plea by Google to avoid a breakup of its

advertising technology business in a U.S. court has been moved

to November 21, the court said. U.S. District Court Judge Leonie

Brinkema in Alexandria, Virginia had ruled in April the company

holds two illegal ad tech monopolies, and she is now considering

what Google must do to restore competition.

META

The U.S. Federal Trade Commission sought to force Meta

to restructure or sell Instagram and WhatsApp in order to

restore competition among social media networks.

Meta argued at trial that buying companies that excelled in

new features instead of building competitor products was a valid

business strategy, and the FTC had ignored competitive pressure

from ByteDance's TikTok, Google's YouTube and Apple's ( AAPL ) messaging

app, among others.

U.S. District Judge James Boasberg said in the ruling that

the FTC had incorrectly excluded YouTube and TikTok from the

market where it challenged Meta's dominance.

AMAZON ( AMZN )

The online retail giant is battling the FTC and state

enforcers in Seattle, where the agency has sued Amazon ( AMZN ) accusing

it of using anti-competitive tactics to maintain dominance among

online superstores and marketplaces.

The FTC alleged Amazon.com ( AMZN ), which has 1 billion items in its

online superstore, was using an algorithm that pushed up prices

U.S. households paid by more than $1 billion. Amazon ( AMZN ) has said in

court papers it stopped using the program in 2019. Last year, a

judge largely rejected Amazon's ( AMZN ) bid to dismiss the case. The

trial is scheduled for February 2027.

APPLE ( AAPL )

The Justice Department and a coalition of states are suing

the maker of the world's most popular smartphone. They say Apple ( AAPL )

thwarts competition by restricting the makers of apps and

third-party devices -- such as smart watches, digital wallets

and messaging services -- to keep iPhone users locked in.

Apple's ( AAPL ) bid to dismiss the case was rejected in June. Deadlines

for both sides to exchange information in the case stretch into

early 2027, and no trial date has yet been set.

MICROSOFT ( MSFT )

The FTC in 2024 opened a probe into whether the software and

cloud computing heavyweight abused its market power in

productivity software by imposing punitive licensing terms to

prevent customers from moving their data to rival platforms. The

FTC has yet to file a case.

NVIDIA ( NVDA )

The Department of Justice launched an investigation into the

semiconductor company whose highly-sought after chips power

artificial intelligence applications and made it the first

company in the world to be worth $4 trillion, the Information

reported last year. No lawsuit has been filed.