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- US stocks opened lower on Friday to cap off a volatile week.
- The S&P 500 is on course for its worst week since December.
- OIl prices jumped as Russia cut production over sanctions.
US stocks opened lower on Friday, with major indices set to cap off a volatile week with more losses.
The S&P 500 was on course for its worst week since December, and investors are seeking cover after a string of disappointing earnings reports. Shares of ride sharing company Lyft sank more than 30% after an earnings miss.
Elsewhere, Russia said it will cut oil production by 500,000 barrels a day, beginning in March, in response to a Western price cap effort.