This weekly newsletter pulls together summaries of the top ten most-read Insights across Equity Derivatives on Smartkarma.
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1. Samsung Elec (005930 KS): Volatility Falls as 2x ETF Trading Activity Slumps
- Samsung Electronics (005930 KS) gained 9.8% in September MTD and its 2x Leveraged Index rose 18.3%, but redemptions limited AUM growth to 15%.
- Units declined across every long-leveraged ETF, while the inverse product added 10% more units despite losing 20.2%.
- Annualised 21-day volatility fell from approximately 135% to 42%, coinciding with regulatory restrictions and a collapse in leveraged ETF flows and turnover.
2. Nikkei 225 (NKY INDEX): Tactical Outlook Post Index Rebalance (Pullback Forecast)
- The Nikkei 225 (NKY INDEX) has been trending up for 3 weeks (including this week), our model flagged it as ‘overbought’. Wall Street/Tokyo brokerages maintain medium-to-long-term bullish trajectories
- Index rebalance will be official from October 1st: added Capcom, Kokusai Electric, and JX Advanced Metals, removing Archion, Konica Minolta, and Kanadevia.
- The price-weighted index has been tilted further toward semiconductors, advanced manufacturing, tech growth, driving institutional flows into chip suppliers. Higher yields and potential further rate hikes present persistent headwind risk.
3. Northern Star (NST AU) Tactical Upside Post-Gold Fields Takeover Rejection
- Northern Star Resources (NST AU) rejected the unsolicited, non-binding takeover proposal from Gold Fields Ltd (GFI SJ) as opportunistic and inadequate, but sweetened or hostile follow-up bids are expected.
- What happens next may influence Northern Star Resources price depending on which scenario play out (there are 5 scenarios, check our MARKET CONTEXT paragraph for details).
- Stock sentiment is neutral-to-bullish short-term, driven by potential M&A floor/sweetened bids from Gold Fields and elevated gold prices, our model sees potential upside from here.
4. SK Hynix (000660 KS) -5% Drop: Tactical Positioning Beyond the Noise
- Panic set in on Monday as SK Hynix (000660 KS) fell -5.05%. The stock has been decelerating in the last few weeks, as discussed here, so this is not surprising.
- Bypassing narrative commentary on the sell-off, we focus strictly on tactical execution and portfolio positioning.
- Our model’s support price zones have been updated since our latest SK Hynix insight so here is a fresh view: how much can SK Hynix fall and where to buy?
5. WEEKLY Tactical Recap | Asymmetric Setup: KS200, CATL, Samsung Electronics, Tokyo Electron, SK Hynix
- WEEKLY tactical global macro recap/analysis for several markets and stocks we track, grouped by sector.
- We apply our quantitative models to each instrument’s trend, to determine which stocks/markets are just starting a trend, are in the middle of it, or are about to end it.
- Most overbought: KS200, META, Samsung Electronics, Tokyo Electron, SK Hynix, Komatsu, Nikkei 225, Hitachi Most oversold: Contemporary Amperex Technology, S&P/ASX200, Bharti Airtel, ICICI Bank, Zijin Mining Group Company
6. Options Weekly: Calls Dominate, but Pockets of Fear Emerge
- Bullish call positioning defined the week of September 21.
- Extreme low put-call ratios hit several names across autos, utilities, and financials.
- Yet bearish hedging surged in equal measure elsewhere – earnings-linked put buying and sector-level stress signals kept the week far from one-directional.
7. EQD | Hong Kong October 2026 Monthly Covered Call Report
- Top Hong Kong Stock Exchange listed covered call candidates for the month of October.
- The top 10 provide an average ~7.42% premium with a potential ~8.82% upside P&L if exercised.
- Investors with a neutral 1-month view on the underlying can seek to generate income.
