Event-Driven and Index Rebalance

Weekly Top Ten Event-Driven and Index Rebalance – Dec 28, 2025

By December 28, 2025 No Comments
This weekly newsletter pulls together summaries of the top ten most-read Insights across Event-Driven and Index Rebalance on Smartkarma.

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1. Taiyo Holdings (4626 JP): An Impending KKR Takeunder?

By Arun George, Global Equity Research Ltd

  • On 19 December, Bloomberg reported that KKR has emerged as a frontrunner to privatise Taiyo Holdings (4626 JP), but “the tender offer price may be lower than the current price.”
  • Since the first Bloomberg article on 27 May, Taiyo’s shares are up 84% vs. the median peers’ shares, which are up 62%. Therefore, the shares reflect some takeover premium.   
  • Based on the medium-term management plan, which is likely KKR’s base case, I estimate a tender offer of around JPY4,624, 1.2% below the last close.

2. Aimed Bio Set for KOSDAQ 150 Fast-Entry: Selvas AI Faces Exit

By Sanghyun Park, Clepsydra Capital

  • Aimed Bio (Dec 4 IPO) averages KRW 3.81tn mkt cap, 1.52tn free-float, clearing KOSDAQ 150 fast-entry hurdles vs #30 Pearl Abyss (2.40tn).
  • Selvas AI exits KOSDAQ 150; KRX announces Aimed Bio fast-entry after tomorrow’s close, effective next trading day post front-month KOSPI 200 futures expiry, March 13.
  • Aimed Bio faces ~0.3–0.4x DTV, Selvas AI ~1.0–1.2x DTV outflows; key alpha likely at fast-entry announcement, prompting a potential post-close setup tomorrow.

3. March KOSPI Size Rebalance: Sanity-Check for Front-Run Angles

By Sanghyun Park, Clepsydra Capital

  • LARGE stands at 99 post-HD Hyundai Mipo merger; March sees 5 into LARGE (including Samsung Epis), 4 to MID, with top movers comfortably above cutoff and MID gaps watchable.
  • Two points: any names riding carryover rally momentum and mid-cap flows rising on sector rotation; LARGE candidates are hitting a pause phase, while top MID movers show clear rebound.
  • Distortion risks should ease by T-1M; if sector rotation ramps, price action could occur earlier than usual—worth monitoring.

4. Doosan Corp To Sell 18.05% Stake in Doosan Robotics for 948 Billion Won

By Douglas Kim, Douglas Research Advisory

  • On 23 December, Doosan Corp (000150 KS) announced that it plans to sell an 18.05% stake (11.7 million shares) in Doosan Robotics (454910 KS) for 948 billion won.
  • It appears that the main purpose of sale is to secure adequate capital for Doosan Corp to acquire SK Siltron which is up for sale.
  • SK Siltron’s corporate value is estimated at around 5 trillion won, so the transaction size for the 70.6% stake up for sale is expected to 3-4 trillion won+.

5. Merger Arb Mondays (22 Dec) – Dongfeng, Jinke, ANE, ENN, Makino, Pacific Ind, Raksul, Toyota Ind

By Arun George, Global Equity Research Ltd


6. OCI Global’s Merger

By Triple S Special Situations Investing, TripleS Special Situation Investing

  • In what can only be described as a masterclass in public equity value destruction disguised as strategic transformation, OCI Global (Euronext: OCI) announced on December 9, 2025, a proposed merger with Orascom Construction.
  • This merger represents capitulation by independent directors and a betrayal of minority shareholders at an exchange ratio of 0.4634 Orascom Construction shares per OCI share, implying a valuation of approximately €3.73 per OCI share, prior to a 15% withholding tax. Post-tax, it is worth €3.17 on a stock trading at €3.00.
  • The deal delivers a cash-rich, debt-free liquidating balance sheet into the hands of a controlling shareholder at a deep discount while stranding minority shareholders in illiquid foreign-listed paper with tax leakage.

7. KT Treasury Burn: Flow Distortion & Sticky ADR Premium Trade Angle

By Sanghyun Park, Clepsydra Capital

  • Structural foreign-cap tightness blocks ADR issuance, disabling arb and making KT’s ADR premium sticky and persistently elevated, especially in high-vol premium expansion phases.
  • KT’s ADR premium ranged ~0–10% this year, trending higher when local shares sold off, then reversing lower as onshore prices turned up into year-end.
  • KT’s gradual treasury burn tied to foreign flows may distort onshore trading and cap upside, while ADR premiums stay structurally pinned, creating a clear window for underlying/ADR trades.

8. A/H Premium Tracker (Wk to 19 Dec 2025):  Hs Underperform Again, Beautiful Skew Behaving Badly

By Travis Lundy, Quiddity Advisors

  • Hs within the liquid AH pair universe UNDER-performed As on average by 0.87%. Beautiful Skew behaved BADLY. Spreads were a bit all over the place.
  • Quiddity H/A Portfolio performance slightly positive (+11-13bp). Low H/A “beta” helps. Stay the Beautiful Skew course.
  • The data tables below update daily in the Tools section of Smartkarma. The Southbound Flow Monitor and AH Pairs Monitor are both there – free for all SK readers.

9. Korea Small Cap Gem #51: Hanssem (Cancellation of 29.5% of Outstanding Shares)

By Douglas Kim, Douglas Research Advisory

  • After the market close on 22 December, Hanssem Co Ltd (009240 KS) announced that it will cancel all of its 6.933 million treasury shares (29.5% of outstanding shares).
  • The fact that this share cancellation is a whopping 29.5% of outstanding shares is likely to result in a sharply higher share price for Hanssem in the next several days. 
  • We believe that this massive treasury shares cancellation is likely to have a significantly positive impact on Hanssem’s share price in the next several days/weeks.

10. HK Connect SOUTHBOUND Flows (Wk To 19 Dec 2025) – Lower Activity, Net Buying, but High-Div SOEs Sold

By Travis Lundy, Quiddity Advisors

  • HK$82bn+/Day of gross SOUTHBOUND activity last week vs HK$90+bn the week before. Gross flows are winding down. Net rebounded to +HK$16bn.
  • Relatively high div low vol SOEs were net sold. Again. This is getting heavy. It matters because some have less international buying support (they are Trump military names).
  • The data tables below update daily in the Tools section of Smartkarma. The Southbound Flow Monitor and AH Pairs Monitor are both there – free – for all SK readers.