"Yield Curve Expansion Leads to Improved Net Interest Margins"

As the yield curve between short- and long-term interest rates in Japan is expanding noticeably, analysts in the securities industry suggest that investment approaches focused on Japanese bank stocks are effective.


Go Kyungbeom, a researcher at Yuanta Securities, stated, "Currently, the elevated interest rates are leading to an expansion in net interest margins and improvements in net profits for Japanese banks, which is why attention is turning to Japanese bank stocks." He further explained, "As the spread between short- and long-term rates widens, the gap between lending and funding rates also increases, improving net interest margins. Thus, bank stocks tend to move in tandem with the yield curve."


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Due to concerns about fiscal soundness, the yield curves in major economies—including the United States, Europe, and Japan—are widening. As a result, financial stocks have risen; notably, Japanese financial stocks saw the most significant gains. Yields on Japan's 10-year government bonds have risen to as high as 3.0%, marking the highest level in 30 years.


Go Kyungbeom pointed to several factors that are reflected in the long-term interest rates: Japan's government debt-to-GDP ratio is the highest among major countries at 192.8%; the Takaichi administration's expansionary fiscal policies have led to greater pressure to issue government bonds; and the weakening yen has contributed to heightened inflationary pressures.


He added that rising interest rates have indeed resulted in net profit growth for Japan's three major banks. "As Japan exits a prolonged ultra-low interest rate environment, loan repricing is underway and higher interest rates are leading to wider net interest margins, which in turn are boosting net profits for the three mega banks," he said. "Ultimately, regardless of whether the yield curve widens further, the process of normalizing interest rates and expanding net interest margins is driving net profit growth, making investment in Japanese bank stocks a viable approach."



Among notable exchange-traded funds (ETFs), he highlighted the 'NEXT FUNDS TOPIX Banks ETF (1615 JP)', which targets the banking sector within the TOPIX index; Japan's three major banks comprise as much as 67.2% of the fund. Go Kyungbeom added, "With the Bank of Japan increasingly likely to raise benchmark rates and normalize monetary policy, interest rates are expected to continue rising. This elevated rate environment should further expand net interest margins and support improved net profits for Japanese banks."


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