On Tuesday, the markets plummeted after Italy was overcome by political turmoil, and the euro declined. Oil prices in the U.S. slid based on reports that Saudi Arabia could pump more crude into the market to help offset production losses from Venezuela.

Shares of Walt Disney (DIS) - Get Report  dropped as box office sales for "Solo: A Star Wars Story" were below expectations at the North American box office in its opening weekend.

China was reportedly prepared to approve Qualcomm's (QCOM) - Get Report  planned $44 billion acquisition of NXP Semiconductors (NXPI) - Get Report  .

Earnings reports are expected after Tuesday's market close from HP Inc. (HPQ) - Get Report  and Salesforce.com (CRM) - Get Report .

Here are three top takes from the columnists of Real Money and Real Money Pro, our premium sites for Wall Street professionals and active investors: 

Jim Cramer: Stocks That Do Well In a Declining Rate Environment Are Back

"They're back!" writes TheStreet's Jim Cramer, "The stocks that do well in a declining rate environment have come roaring back and the crash of oil will only accelerate the move. It's incredible, what stocks get bought at this moment almost seem literally etched in stone. It's the same group of stocks that starred when rates were first on the way down. There are almost no changed whatsoever. I guess these managers doing the buying feel that the money will be taken away if the declining rate playbook isn't adhered to." 

(See Part Two of Jim Cramer's "Stocks That Do Well In a Declining Rate Environment Are Back.")

Short Weeks Are Always Long

Real Money columnist Stephen Guilfoyle says, "This week is no different. For one, this Friday brings the month of June. That means that another 'Jobs Day' is upon us, not to mention that before we get there, we'll run through data on home prices, consumer level inflation, and a revision to Q2 economic growth. There's a lot more than that."

Guilfoyle also looks at the financial sector, Disney's "Star Wars" series, and the sustained growth story that is Splunk (SPLK) - Get Report .

Market Randomness and How Traders Should Deal With It

"As I have said many times, the market is intent on making the most people possible look foolish at any given moment. This is especially true for market timers, who have a notoriously bad record in predicting outcomes. The best chance you have to get on the right side of the market is to examine the price action, determine the trend and go with the high probabilities of human behavior repeating," says RealMoney Pro columnist Robert Lang.