Samsung's Q3 profit jumped 783% to a record W107.4tr. Samsung Electronics, the group's flagship, is the world's largest IT company and chipmaker by revenue — that's where the swing factor sits. A reco

What happened: Samsung Electronics estimated third-quarter operating profit rose 782.5 percent from a year earlier to a record 107.4 trillion won, its fourth straight quarterly profit record, on booming memory demand. Key numbers: Operating profit 107.4 trillion won ($80 billion), up 782.5 percent on-year. Revenue 195 trillion won, up 126.6 percent. Why it matters: Samsung is the first tech company to top 100 trillion won in quarterly operating profit, but rising memory costs are squeezing smartphones, TVs and appliances, and a stronger won cut dollar-denominated chip sales.

Samsung Electronics estimated third-quarter operating profit rose 782.5 percent from a year earlier to a record 107.4 trillion won, its fourth straight quarterly profit record, on booming memory demand.

Samsung is the first tech company to top 100 trillion won in quarterly operating profit, but rising memory costs are squeezing smartphones, TVs and appliances, and a stronger won cut dollar-denominated chip sales.