Pre-market price action and scheduled economic data that may have an impact on the global financial markets:

STOCKS – Shares in Europe were little changed after Qatar Energy Minister Mohammad bin Saleh al-Sada said the ministers agreed to freeze production. Chinese shares rallied the most in three months. S&P futures, pointing to a firmer opening as well for U.S. markets, which were shut on Monday for a holiday.

BONDS – Japanese bond yields fell as the Bank of Japan started implementing negative interest rates on Tuesday, with the 10-year yield dropping 4.5 basis points to 0.040 percent.

COMMODITIES – Oil prices rallied as news that top officials from the world’s biggest oil producers –Saudi Arabia, Russia, Venezuela and Qatar — spurred speculation of an eventual deal to tackle a massive supply glut.

CURRENCIES – The Japanese yen and euro strengthened during the overnight trading session.

ECONOMIC DATA – US Empire State Manufacturing Index and CAD Manufacturing Sales m/m due at 8:30 ET., German Constitutional Court Ruling (tentative).