Economic calendar: April's ADP report in the spotlight

• European stock markets seen opening higher

• ADP report for April expected to show 810k increase in employment

• PayPal, Uber and General Motors among today's earnings reporters

European stock markets are seen opening higher after Janet Yellen backtracked on her interest rates comments and endorse Fed's independence. German DAX futures trade just slightly below 15,000 pts mark, hinting at around 100 points bullish price gap at cash session open.

While today's economic calendar is dominated by revisions of services PMIs for April, there are also a few readings that may move the markets. ADP report for April is a key release of the day and will serve as a final hint ahead of Friday's NFP report release. It is expected to show a strong jobs growth of 810k. Apart from that, traders will also focus on US services ISM, DOE report on oil inventories and Wall Street earnings.

8:15 am BST - Spain, services PMI for April. Expected: 49.8. Previous: 48.1

8:45 am BST - Italy, services PMI for April. Expected: 50.0. Previous: 48.6

8:50 am BST - France, services PMI for April (final). First release: 50.4

8:55 am BST - Germany, services PMI for April (final). First release: 50.1

9:00 am BST - Euro area, services PMI for April (final). First release: 50.3

1:15 pm BST - US, ADP report for April. Expected: 810k. Previous: 517k

2:45 pm BST - US, services PMI for April (final). First release: 63.1

3:00 pm BST - US, services ISM for April. Expected: 64.3 Previous: 63.7

3:30 pm BST - DOE report on oil inventories.

• Oil inventories. Expected: -2.2 mb

• Gasoline inventories. Expected: -0.6 mb

• Distillate inventories. Expected: -1.0 mb

Central bankers' speeches

• 2:30 pm BST - Fed Evans

• 3:00 pm BST - ECB Lane

• 4:00 pm BST - Fed Rosengren

• 5:00 pm BST - Fed Mester

Wall Street earnings

• Amerisourcebergen (ABC.US) - before market open

• Barrick Gold (GOLD.US) - before market open

• Booking Holdings (BKNG.US) - after market close

• Etsy (ETSY.US) - after market close

• General Motors (GM.US) - before market open

• Hilton Worldwide (HLT.US) - before market open

• Marathon Oil (MRO.US) - after market close

• PayPal (PYPL.US) - after market close

• Uber Technologies (UBER.US) - after market close