The provided data for the TWD/KRW exchange rate on 2026-03-13 is largely incomplete, showing "NaN" for the current rate, daily change, and attribution metrics. However, the directional movement is clearly indicated: TWD/KRW went DOWN, signifying a stronger South Korean Won (KRW) relative to the New Taiwan Dollar (TWD) for this specific day. This means it now takes fewer KRW to purchase one TWD, or conversely, one TWD buys fewer KRW than the previous close. Since the daily change and attribution figures are unavailable, we cannot definitively state whether this was primarily driven by a major shift in South Korean economic data or Taiwanese fundamentals, though the net result favors the KRW.

Regarding the mid/long-term trends, all supporting metrics—including percentage change, absolute change, 1-week, 6-month, and 1-year high/low, volatility (SD), and efficiency (choppiness)—are also absent. In a complete dataset, we would look at these to understand the context. For instance, a high Volatility (SD) percentage over the last year, combined with a low Efficiency (Choppiness) score (closer to 0.0), would suggest the TWD/KRW pair has experienced significant, yet erratic, price swings over the past year, making any sustained trend difficult to establish, perhaps due to fluctuating interest rate differentials or divergent inflation outlooks between the Bank of Korea and the Central Bank of the Republic of China (Taiwan). A high Efficiency score (closer to 1.0) would imply a relatively clean, established trend, whether up or down, potentially reflecting consistent monetary policy divergence.

To provide concrete context, recent news impacting the KRW would be crucial. For example, any surprising announcements regarding South Korea's trade balance, major technological exports, or unexpected shifts in the Bank of Korea's stance on liquidity or policy rates relative to Taiwan's central bank would be the primary drivers for such a weakening in the TWD/KRW cross rate. Without this data, the analysis remains limited to the observed strengthening of the KRW on this specific date.