Samsung reports Q4 revenue down 3.8% YoY to ~$51B, vs. ~$52.1B est., and operating profit down 34.57% YoY to ~$2.1B, vs. ~$2.6B est. (Sheila Chiang/CNBC)

Sheila Chiang / CNBC:
Samsung reports Q4 revenue down 3.8% YoY to ~$51B, vs. ~$52.1B est., and operating profit down 34.57% YoY to ~$2.1B, vs. ~$2.6B est.  —  - Samsung on Wednesday reported a 34.57% drop in operating profit in the fourth quarter from a year ago, in line with its guidance issued earlier this month.