Analysts say the partial U.S.-China trade deal doesn't touch on thorny issues plaguing both sides, and warn talks could break down again.World Economyread more
"The Champagne should probably be kept on ice, at least until the two presidents put pen to paper," said state-owned media China Daily.Traderead more
Economists polled by Reuters had expected Chinese exports denominated in the U.S. dollar to fall by 3% and imports to decline by 5.2% in September, compared to a year ago.China Economyread more
The U.K. and EU are gearing up for what could be the busiest week in British politics since June 2016.Europe Politicsread more
The U.S. had plans to hike duties on at least $250 billion in Chinese goods to 30% from 25% on Tuesday. Despite the partial trade deal, some banks on Sunday wrote that tariff...Marketsread more
The industry has pulled in $322 billion over the past six months, the fastest pace since the second half of 2008.Marketsread more
A technical recession occurs when there are two consecutive quarters of economic contraction.Asia Economyread more
"Deepfakes" are being used to depict people in fake videos they did not actually appear in, and can potentially affect elections, diplomacy and how markets move, experts say.Technologyread more
Chinese President Xi Jinping warned on Sunday that any attempt to divide China will be crushed.China Politicsread more
Syria's Kurds said Syrian government forces agreed Sunday to help them fend off Turkey's invasion.World Newsread more
U.S. President Donald Trump said that both sides reached a "very substantial phase one deal" that will address intellectual property and financial services concerns and...Asia Marketsread more
At the end of the day, CNBC's knows investors are only human.
That's why the "Mad Money" host has come up with a set of investing rules to help guide them through the emotion and the fallibility that can come with being involved in stocks.
One of Cramer's most important rules has to do with buying stocks.
"This is a real important one: Never buy a stock all at once," Cramer said. "I can't stress it enough: Do not, under any circumstances, buy all at once."
Plenty of Wall Street brokers and advisors prefer not to deal with partial orders or buying a stock gradually over time. They like to go in big and make a statement with their purchases.
"From where I stand, that's all wrong — 100% wrong," the "Mad Money" host said. "What I want you to do is stage your buys. Stage your sells. The term we use on Wall Street is, 'Work your orders.' Try to get the best price over time, and not necessarily in one day. Maybe multiple days."
Cramer remembers how he learned this lesson when he started as a money manager. He wanted to prove how smart he was, so he bought 50,000 shares of Caterpillar's stock.
Looking back, Cramer saw that as a really dumb bet.
"All I can say is that I was one arrogant son of a gun. I was arrogant, and I was wrong," he said. "I should've been buying CAT in increments of 5,000 shares."
This strategy would've insured that Cramer got the stock he wanted at the best price he could get, instead of going in big and hoping Caterpillar wouldn't immediately go down.
Today, Cramer runs his charitable trust the same way: Whenever he chooses a new name to buy, he buys 500 shares at a time, or less, over the course of a few days.
"When you buy all at once, you're basically declaring that the stock absolutely won't go any lower," the "Mad Money" host said. "Don't you think that's crazy when I say it? No one has that kind of insight. Buying gradually, in stages, is all about recognizing that our judgment is fallible."
Buying shares of a stock shouldn't be about making a statement, he added. If you resist the arrogance and buy slowly, you'll be more organized, less emotional and better off as an investor.
"Humility beats hubris every time," Cramer said. "If you take your time, you're much less likely to end up with a large quantity of broken merchandise."