The trade war between the United States and China has lasted for more than one year — and a resolution is nowhere in sight.World Economyread more
The Fed is expected to cut rates Wednesday, but it is unlikely to tell markets what they want to hear on future rate cuts.Market Insiderread more
Pelosi said Trump should not have tried to address China's trade practices in a way that opened Americans up to financial pain.Politicsread more
Investors await the Fed's latest decision on monetary policy, set to be released on Wednesday stateside. The U.S. central bank is widely expected to cut rates by 25 basis...Asia Marketsread more
TransferWise posted an annual net profit of £10.3 million on revenues of £179 million.Technologyread more
Live the high life with a night's stay at Highclere Castle, the iconic stately home made famous by Downton Abbey.Spendread more
Large banking institutions face the risk of failure if interest rates in Europe continue to stay negative, warns the global chief economist of the Economist Intelligence Unit.Banksread more
The fallout from two fatal crashes of Boeing 737 Max planes has ensnared the manufacturer's most-loyal customer: Southwest Airlines. The carrier has canceled thousands of...Airlinesread more
Brent crude oil jumped the most in history in the previous session after attacks on Saudi's oil industry disrupted the kingdom's production.Marketsread more
In the survey, conducted after the third in the Democratic Party's series of debate, the former vice president draws 31% compared to 25% for the Massachusetts senator. At 14%,...2020 Electionsread more
Stocks rose slightly on Tuesday, but gains were capped as the Federal Reserve kicked off a two-day monetary policy meeting.US Marketsread more
Apple shares traded up above 1.7 percent following the tweet. (Get the latest quote here.)
Apple declined to comment on the news.
Icahn will be on CNBC's "Halftime Report" Thursday at 12 p.m. ET.
Icahn also took to Twitter to say that it was just over a year since his firm announced its large position in Apple, and that the stock is up 50.6 percent since then.
Icahn has previously pushed for Apple to engage in stock more buybacks, and trumpeted its pipeline of new products.
Apple analyst Brian Blair, managing director of Rosenblatt Securities, told CNBC on Thursday that he believes Icahn is going to suggest a breakup.
"I think it's going to suggest that Apple break off this iTunes side of the business, along with Beats, and create a media platform," he said.
Blair added: "I think he's [Icahn] going to say, 'Take Jimmy Iovine, take Dr. Dre, separate this iTunes unit and use you're cash to really build out a media empire. Start maybe acquiring content, using the iRadio and this Beats streaming platform to create a separate but relevant business that can really help Apple grow, maybe even into the TV business."
Read MoreApple: We're notshutting down Beats
The main reason Apple bought Beats is because iTunes is on the decline because of Spotify and other music streaming services, he said.
The Icahn letter also could have something to do with Apple Pay, Blair said.
"He [Icahn] was obviously spot on with eBay spinning off the PayPal side of the business, so he has some great views about unlocking shareholder value," he said.
Icahn could have something to say about Apple becoming a credit card-type company in the long-term, he said.