The South Korean won strengthened sharply against the U.S. dollar on Friday, reversing a recent trend of weakness as foreign investors returned to net buying in local equities.

The currency's move marks a shift in sentiment after the won had faced persistent pressure from overseas sellers earlier in the week.

The currency has depreciated nearly 6% against the dollar over a broader timeframe, making the recent rebound significant for traders monitoring emerging market flows.

The won's appreciation was driven by renewed demand for Korean stocks from foreign funds, which helped stabilize the currency after it had weakened to 1,468.5 won per dollar on Monday.

The influx of foreign capital provided a counterweight to the selling pressure that had weighed on the currency in recent sessions.

This development follows a period of volatility for the won, which had firmed to 1,474.3 won per dollar on Tuesday before retreating.

The currency has depreciated nearly 6% against the dollar over a broader timeframe, making the recent rebound significant for traders monitoring emerging market flows.