South Korea's Seoul Composite Index fell intraday today after earlier rising over 2%.

On June 22, the CEO of a South Korean exchange said that regulators are expected to step up oversight of leveraged ETFs when necessary, FX168 reported.

June 22 – Bitmine Immersion Technologies, Inc. today announced its board of directors has approved a cash dividend of $0.1056 per share on its 9.50% A Series Perpetual Preferred Stock. The preferred shares trade on the New York Stock Exchange under the ticker symbol "BMNP." The dividend will be paid in cash in line with the terms outlined in the A Series Preferred Stock Certificate of Designation. The scheduled payment date is July 10, 2026. Shareholders of record as of the close of business on June 30, 2026, will be eligible to receive this dividend. As previously disclosed, Bitmine’s A Series Perpetual Preferred Stock (ticker: BMNP) is structured to pay dividends on a weekly basis.

June 22 – Iran’s Tasnim News Agency reported that the agreement reached during the first round of Iran-U.S. negotiations held in Switzerland includes five key points.

June 22: The Kobeissi Letter reported that assets under management (AUM) for the Hong Kong-listed SK Hynix 2x Leveraged Long ETF have hit a record high of $13 billion. The fund’s AUM has surged more than three times over the past two months, making it the second-largest product among roughly 250 listed ETFs in Hong Kong. It now represents about 13% of Hong Kong’s domestic ETF market total assets, earning it the title of the fastest-growing ETF by asset scale in Asia and a fourth-place global ranking. Launched in October 2025, the fund is less than eight months old. Additionally, GF Fund Management has lifted position limits for SK Hynix Leveraged Fund options to meet growing market demand.

June 22nd – According to BlockSec’s monitoring, the Taiko Network has suffered an attack leading to over $1.7 million in losses. Preliminary investigations point to the likely root cause: the exposure of Raiko’s SGX enclave signing key on GitHub. Raiko is Taiko’s multi-prover stack, used for verifying blocks on both Taiko and Ethereum, so the exposed SGX enclave key could directly compromise Taiko’s on-chain proof verification pathway. With the enclave signing key now publicly accessible, the SGX prover trust model may have been breached. The exposed key enables attackers to register SGX instances under their control. Once registered, these malicious instances can sign proof public inputs accepted by Taiko’s proof validator, allowing fraudulent state or signal proofs to pass validation. The attacker then leverages forged source signals to register fake bridging messages as "RETRIABLE", before calling the `retryMessage` function to trigger the ERC20Vault and release standard Layer 1 (L

On June 22, Samsung Electro-Mechanics kicked off mass production of packaging substrates for Qualcomm’s first data-center AI accelerator at its Busan factory. This marks an expansion of the two companies’ partnership, moving beyond their traditional collaboration in mobile and PC markets to now cover the data center sector. Samsung Electro-Mechanics recently began mass production of Flip Chip Ball Grid Array (FC-BGA) packaging substrates tailored for Qualcomm’s latest AI accelerator, the AI200. The AI200 is Qualcomm’s first AI accelerator built for data centers, unveiled last October, and it’s primarily designed for AI inference scenarios. The chip features Qualcomm’s self-developed Oryon CPU and Hexagon NPU, paired with low-power LPDDR5 memory to enhance energy efficiency. Qualcomm plans to launch the AI200 in the second half of this year, so Samsung Electro-Mechanics started mass production of the FC-BGA substrates early to align with the product’s rollout timeline. This developmen