"Leveraging the old script" is not a good idea! SK Hynix (SKHY.US) ADR arbitrage faces increased difficulty, with historical data missing and high volatility being the biggest obstacles.

Arbitrage traders planning to trade the newly issued American Depositary Receipts (ADR) of SK hynix (SKHY.US) are reviewing their past experiences in operating Taiwan Semiconductor Manufacturing Co., Ltd. Sponsored ADR ADR arbitrage trades. However, many market participants argue that the comparability between the two is actually very limited. Taiwan Semiconductor Manufacturing Co., Ltd. Sponsored ADR ADR has a trading history of several decades, and investors typically have a clear understanding of the premium they would usually maintain compared to the local stocks. However, as SK hynix ADR will start trading for the first time on Friday, arbitrage investors lack a historical benchmark and cannot judge what level of premium is normal, and it is even more difficult to determine whether the current price difference is attractive or already overstretched. The challenge does not only come from the lack of historical price data. SK hynix has become one of the most volatile large-cap stocks in Asia in recent years. With investors continuing to pour into artificial intelligence (AI) related storage chip concept stocks, and leveraged products linked to the stock, its price often experiences single-day fluctuations far beyond the market average. This severe volatility further increases the so-called "price difference risk," where the price movements between ADR and the stock listed in Seoul, South Korea, may deviate significantly from the direction arbitrage traders originally bet on. Alex Au, Managing Director of Alphalex Capital Management HK Ltd., who has been engaged in Taiwan Semiconductor Manufacturing Co., Ltd. Sponsored ADR ADR arbitrage trading for many years, said, "As SK hynix has higher volatility, the price difference risk is significantly greater. Therefore, investors seeking to achieve premium returns from arbitrage ADRs will inevitably demand higher rates of return." Furthermore, another uncertain factor is how much of SK hynix's common stock listed in Korea can be converted into American Depositary Receipts (ADR). According to a regulatory filing submitted by SK hynix on July 6, holders of ADRs can cancel the ADR and exchange for the corresponding number of common shares listed in Seoul, South Korea. However, investors may not be able to convert these common shares back into ADRs in the future, as this conversion process may require approval from relevant Korean regulatory agencies and other departments. In contrast, the market has had years of trading experience with the partially interchangeable ADR mechanism of Taiwan Semiconductor Manufacturing Co., Ltd. Sponsored ADR. While the premium of Taiwan Semiconductor Manufacturing Co., Ltd. Sponsored ADR ADR compared to local stocks in Taiwan has expanded at times due to the AI boom, investors can still judge when the premium has become too high based on historical patterns, and eventually return to normal levels (mean reversion). According to compiled data, over the past month, the average premium of Taiwan Semiconductor Manufacturing Co., Ltd. Sponsored ADR ADR over local stocks in Taiwan is approximately 16%. This price difference has generally shown mean reversion characteristics over the long term, making it one of the most popular relative value arbitrage trades globally until the current AI investment craze breaks this pattern. At present, various institutional investors have significantly different forecasts for the premium that SK hynix ADR may experience in its initial listing, ranging from about 5% to over 30%, highlighting the significant uncertainty in the market before its official listing. According to a report sent to institutional clients, Morgan Stanley's sales and trading department estimated on Wednesday that the initial premium for SK hynix ADR would be around 5% to 10%; if this ADR is included in major US stock indices or traded exchange-traded funds (ETFs) in the future, there is further room for the premium to expand. Independent special events analyst and Smartkarma platform contributor Travis Lundy said, "Before it has been trading for a while and forms a mature market, no one can accurately judge how much of a premium it should maintain daily." He added, "Historical experience suggests that this type of ADR premium may indeed rise very high, but it usually does not stay at very high levels for long."