On April 17, 2026, BNK Busan Bank made headlines in South Korea’s financial sector by announcing the relaunch of its ‘BNK Index-Linked Time Deposit (ELD)’, a product that blends principal protection with the potential for market-linked returns. This marks the first time in nearly 15 years—since 2011—that the bank has offered such a product, aiming to attract investors seeking both security and the opportunity for higher yields than traditional fixed deposits.
The new product, as reported by SeoulWire, Newsis, and other local outlets, is designed for individuals who want to minimize risk while still participating in the upside of the KOSPI200, South Korea’s blue-chip stock index. The structure is straightforward: if the deposit is held to maturity, the principal is fully guaranteed. On top of that, investors can earn additional returns depending on how the KOSPI200 index performs over the contract period.
The offering comes in two flavors: the first, known as ‘BNK Index-Linked Time Deposit 1st (Rising Participation Type 1)’, provides a minimum annual yield of 2.5% and a maximum of 4.2%. The second, ‘BNK Index-Linked Time Deposit 2nd (Rising Participation Type 2)’, offers a minimum yield of 1.1% and a maximum that reaches up to 6.1% per annum. Both products use the KOSPI200 index as their underlying asset, and the final interest rate is determined by the index’s performance at the end of the 12-month contract.
What sets this product apart from many similar offerings is the absence of a so-called ‘knock-out’ condition. In the world of structured deposits, a knock-out clause often means that if the underlying index rises beyond a certain threshold, any further gains are capped, and the investor receives only a predetermined minimum rate. BNK Busan Bank’s new ELDs have no such cap, so if the KOSPI200 surges, investors can enjoy the full benefit of that growth—up to the product’s stated maximum yield.
“The index-linked time deposit is a product based on principal protection, with the potential for additional returns depending on market conditions,” said Jang In-ho, head of the personal customer group at BNK Busan Bank, in comments reported by Newsis and Industry News. “We will continue to introduce financial products that reflect the diverse investment needs of our customers.”
From the investor’s perspective, the appeal is clear. In an era of uncertain interest rates and market volatility, the promise of principal protection is a powerful draw. Traditional savings accounts and fixed deposits often offer modest yields, but this product provides a way to potentially earn more without exposing the investor’s original capital to loss—so long as the deposit is held to maturity.
However, as with any financial product, there are important caveats. While the principal is guaranteed at maturity, early withdrawal comes with a catch: fees may apply, and these could result in a partial loss of the original deposit. BNK Busan Bank has been careful to highlight this aspect, urging customers to consider their liquidity needs before committing. As explained in SeoulWire, “While the product guarantees the principal if held to maturity, early termination may incur fees resulting in partial principal loss.”
Accessibility is another central theme. The product is open to all investors, with no restrictions on who can subscribe. The minimum investment is set at 1,000,000 KRW (about $750 USD at current exchange rates), making it accessible to a broad swath of retail customers. The subscription period runs until May 6, 2026, but there’s a catch: each round of the product has a cap of 10 billion KRW (roughly $7.5 million), and the bank has stated that subscriptions may close early if the limit is reached. The contract period for each deposit is 12 months.
The relaunch of this ELD comes at a time when many South Korean savers are searching for alternatives to low-yielding deposit accounts, but remain wary of the risks associated with direct stock market investment. By linking returns to the KOSPI200 but ensuring capital safety (so long as the term is completed), BNK Busan Bank is positioning itself as a bridge between the conservative and the adventurous investor.
Financial experts note that the KOSPI200 is a widely recognized benchmark, comprising the top 200 companies listed on the Korea Exchange. Its performance is closely watched by both institutional and retail investors, and products tied to its movements have long been a staple of the structured deposit market in South Korea. However, the inclusion of a true no-knock-out structure, as seen in BNK Busan Bank’s latest product, is less common and could prove attractive in a market where volatility has been the norm rather than the exception.
For those unfamiliar with the term, a ‘knock-out’ clause in structured deposits is essentially a ceiling: if the index surpasses a certain level, the product stops accruing additional gains and may revert to paying only a minimum guaranteed rate. By removing this ceiling, BNK Busan Bank is allowing investors to benefit more fully from any sustained rally in the KOSPI200 during the 12-month term.
Jang In-ho, reflecting on the product’s reintroduction after such a long hiatus, said, “Even if the index falls or remains flat, customers can still receive the minimum guaranteed rate, making it suitable for those seeking both stability and profitability.” He added, “We hope that this long-awaited relaunch will provide real help to our customers’ asset management.” (SeoulWire, Industry News, Newsis)
While the product is not without its risks—namely, the potential for principal loss if withdrawn early—it represents a thoughtful response to the challenges facing modern savers. In a world where financial security and opportunity are often at odds, BNK Busan Bank’s index-linked time deposit is an attempt to offer a little bit of both. But as always, those considering such products are urged to read the fine print, weigh their own financial needs, and perhaps consult a trusted advisor before making a decision.
With the subscription window open but capped and the market watching for the next move in the KOSPI200, BNK Busan Bank’s latest offering is likely to spark interest among cautious optimists—those who want a taste of the market’s upside, but aren’t willing to gamble with their hard-earned savings.