1. Markets steady after the debate

Democratic nominee Hillary Clinton appears to have edged out her Republican opponent Donald Trump in the first presidential debate, based on analysts' take on the market reaction.

Online betting companies shortened the odds on a Clinton win in the wake of the Monday night debate, leaving her as the clear favorite among bettors.

Traders are mostly expecting Democratic candidate Hillary Clinton to win the presidency and have not factored in the implications of a victory for Donald Trump. The idea of Trump in the White House is a worrying one for some investors who balk at his populist, unpredictable style.

U.S. stock futures are edging higher following the first presidential debate, suggesting investors thought Hillary Clinton put on a better performance than Donald Trump.

And the Mexican peso gained more than 2% against the USD. In recent weeks, the Mexican currency has been moving in the opposite direction to Trump's poll numbers.

2. Earnings and economics

Nike (NKE) will announce its earnings after the close Tuesday.

The Conference Board's August Consumer Confidence Index will be released at 14:00GMT.

Major British travel company Thomas Cook released a trading update Tuesday, showing a 4% drop in holiday bookings. The company said the decline was down to a huge drop in demand for holidays in Turkey.

European markets are dipping, after opening broadly higher.

Most Asian markets ended the session up. Japan's Nikkei initially dropped lower on a stronger yen, but recovered during the day and closed 0.8% up.

Chinese stocks also finished higher, after new data showed the strongest growth in industrial profits in almost three years.

The Dow Jones industrial average was down 0.9%, while the S&P 500 was down 0.9% and the Nasdaq was down 0.9%.

3. Oil in focus

All eyes will be on OPEC oil ministers meeting on the sidelines of an energy forum in Algeria. The oil cartel is trying to build consensus for a production cut to support prices. They've been trying to reach an agreement for the past year, with little success so far.

Crude oil futures are dropping 1.6% early on Tuesday, suggesting investors have little faith a deal can be done.

4. Stock market movers

Shares in Carnival Corp (CCL) are up 2.3% premarket, after the cruise operator raised its earnings guidance for the year. The cruise industry has been hit by the Zika virus outbreak in key destinations in central and south America. Carnival's stock has dropped 14.7% so far this year.

Deutsche Bank (DB) fell again on Tuesday to another record low. Investors are worried it may have to raise more funds to pay a huge U.S. fine for dealing in toxic mortgages before the global financial crisis.