10 things you need to know before the opening bell

Here is what you need to know.

We're already seeing the 'true tell' of the start of a bear market. Morgan Stanley's US equity strategists have identified early signs that the nine-year old bull market may be coming to a close.

Oil dives as the West hints at no further Syria strikes. West Texas Intermediate crude oil trades down 1.38% at $66.46 a barrel.

Ad giant WPP's chairman is out. Sir Martin Sorrell has left the advertising giant in the face of an internal investigation over allegations of misconduct and misuse of company assets.

The ECB wants Deutsche Bank to work out how much it would cost to quit investment banking. The calculations are said to be "routine" and don't necessarily signal a pending exit, Reuters says.

Rusal crashes after the US says more Russia sanctions are coming. The Russian aluminum maker plunged more than 20% Monday in Hong Kong after the US promised more sanctions against Russia for its supporting of the Syrian government's use of chemical weapons, the Financial Times says.

Goldman Sachs bought a money management app. The investment bank bought Clarity Money, a personal finance startup, to bolster its Marcus online lending business, Reuters reports citing a Goldman release. Terms were not disclosed.

Here are the US counties where more people are being born than dying. Madison County, Idaho saw the biggest population increase from natural change between 2016 and 2017, adding 25.3 people per 1,000, according to the US Census Bureau.

Stock markets around the world trade mixed. China's Shanghai Composite (-1.53%) was hit hard in Asia and Germany's DAX (+0.18%) leads in Europe. The S&P 500 is set to open up 0.58% near 2,672.

Earnings reporting remains light. Bank of America reports ahead of the opening bell and Netflix releases its quarterly results after markets close.

US economic data picks up. Empire Manufacturing and retail sales will both be released at 8:30 a.m. ET before the NAHB Housing Market Index crosses the wires at 10 a.m. ET. The US 10-year yield is up 3 basis points at 2.85%.