00:02You're listening to AI Prism from Seoul Economic Daily.
00:30It's up more than 100 percent since September 1st, and EcoPro BM gained 11.4 percent today on a solid
00:37-state battery materials deal with Samsung SDI.
00:40Meanwhile, individual stock volatility halts jumped 34 percent last month as Korea's new after-hours trading session went live.
00:48It's Wednesday, October 7th.
00:50Let's look at what this means for retail investors in Korea.
00:54Kostak had been the market's laggard for months, while Kospi's big semiconductor names carried the rally on their own.
01:00That's flipping as AI-driven demand for chip packaging and testing spreads to smaller equipment and materials makers that supply
01:07Samsung and SK Hynix.
01:10At the same time, Korea's longer trading day is exposing how thin after-hours liquidity still is, which is why
01:16price swings are triggering more circuit breakers than before.
01:19Here's what the numbers show.
01:20Kostak closed at 919.92, up 2.98 percent or 26.63 points, after rising in 11 of the last
01:2913 sessions for a combined 14.02 percent gain.
01:33Seven back-end chip names, including SFA Semiconductor, up 100.17 percent, and Hanyang Digitech, up 79.51 percent, averaged
01:44a 54.86 percent gain since September 1st.
01:47Foreign investors bought $111 billion, or about $83 million, of Kostak shares on October 6th, reversing a $1.47 trillion,
01:58or $1.09 billion, outflow in September.
02:02Individual stock volatility halts hit 13,236 last month, up 33.8 percent from August, while ETF and ETN halts
02:13fell 67.1 percent to 533, the lowest monthly count this year.
02:18The divide traces back to September 14th, when Korea's new after-hours session added a volatility-prone window that ETPs
02:26are excluded from.
02:28So what does this mean for retail investors in Korea?
02:31Earlier we said this Kostak move came with real buying, not just momentum chasing.
02:36Here's what that actually means for you.
02:38The rotation into chip equipment and battery material names is backed by institutional flow data, though a market this volatile
02:45can reverse as fast as it rallied.
02:47Watch three things – whether foreign Kostak buying extends past this week's pace, whether volatility halts keep climbing as the
02:55after-hours session matures, and what Samsung's board decides about retiring more preferred shares at its late October meeting.
03:02That's today's AI Prism Retail Investors. This episode was produced with AI Assistants based on Seoul Economic Daily reporting and
03:11reviewed by a human editor.
03:13AI Prism is a Juan Ifra Award-winning series. We'll be back tomorrow.
03:17You've been listening to AI Prism from Seoul Economic Daily.
