Today, ChatGPT suddenly feels like it's cheating??

When I point out some reports are changed and omitted, it's right. It fell for it. Sneaking past like that...ㅋㅋㅋ

🇰🇷 Korea Stock Market Closing Briefing — September 21, 2026

Market Character: Semiconductor-led + Institutional Real Buying + Foreigner Futures Strong Buying + OI Increase
Key Judgment: Attempt to resume the uptrend, but confirmation of foreigner real and market breadth is still needed

① Today's Market at a Glance

★ Today's Key Combination

KOSPI↑ + K200↑↑ + Futures↑ + Large-scale foreign buying of futures + OI↑ + Basis(+) + VKOSPI↓

Looking only at the derivatives market, there is a structure confirming a fairly good rise since September.

However:

Foreigners Spot -1,602 billion ↔ Foreigners Futures +1 trillion 1,471 billion

There is a gap.

This part is the key to interpreting today's market.

② Today's Market Quantitative Score (Market Quant Score)

★ 78 / 100 — Upside Advantage

Macro Quant Score

68 / 100

The strengthening of the Korean won and stable oil prices are positive, but the fact that the yield on the US 10-year Treasury note exceeded 5% again during trading in the US market is a burden. On the other hand, US semiconductor stocks were strong, with Nvidia +1.34%, Broadcom +2.97%, AMD +2.70%, and Micron +3.92%. This trend has been linked to domestic semiconductors. ShinAilbo

③ Foreigners & Institutions' Net Buying

KOSPI Official Closing

Although there are differences in aggregation by publicly available data, the direction is consistent with individuals and foreigners selling / institutions and other corporations buying.

★ Key Points Not to Miss in Today's Supply and Demand

Foreigners were net buyers during the session but switched to net selling just before the market close.

Therefore, describing today's KOSPI rise as:

"Return of foreign investors in the spot market"

is not accurate.

Rather, it is more appropriate to view today as:

"A day when institutions and other corporations bought spot positions while foreigners secured strong upside exposure in the derivatives market."

④ KOSPI200 Futures + OI + Basis + Program

Futures Market

Futures by Investor

Today's key focus is the derivatives market.

Price↑ + OI↑ + Foreigners Futures↑

This combination typically increases the likelihood of new long position building (Long Build).

However, OI represents the total market OI.

Therefore, we cannot definitively conclude that foreigners directly created an OI increase of +556.

Position Characteristics

★ Intraday → Closing

Futures dropped to 1,109.90 before recovering to 1,115.10.

OI increased compared to the previous day.

Therefore, we believe this rise is attributed to new long position rebuilding in the afternoon, rather than simply short covering.

⑤ Options Market

Today's HTS amount based on:

The combination of foreigners is important.

Futures +1.147 trillion + Call net buying

Therefore, the direction of the derivatives market itself is upward.

Confirmed Strike Prices

Put 1,050

• Price about 70.45

• OI 1,462

• Previous day -20

Put 1,090

• Price about 28.55

• OI 169

• Previous day +2

Since complete data for each strike price is not available, PCR (Put/Call Ratio) remains unconfirmed.

⑥ Semiconductor and Major Stock Trends

Today's market is essentially a 7,000 recovery made by semiconductors.

Samsung Electronics surged +4.98%, and SK Square also showed strength in the 4% range. The rally extended to semiconductor materials, parts, and equipment stocks. On the other hand, some secondary batteries such as LG Energy Solution weakened.

Semiconductor Internal Structure

Large Caps
→ Samsung Electronics · SK Hynix

↓

Holding Company/High Beta
→ SK Square

↓

Equipment
→ Wonik IPS · Ioteqnix, etc.

↓

Materials·Parts

Buying spread.

★ This is a much better structure than just one stock, Samsung Electronics, raising the index.

⑦ Fixed 12 Sectors Quantitative Score

8 ★ Top 15 Sectors for Today & Key Stock Signals

★ Today's Rotation Core

The semiconductor-centered surge of the previous trading day expanded today:

Large-cap semiconductors → Semiconductor equipment → Semiconductor materials & parts

.

However, there were more declining stocks than rising stocks in the overall KOSPI. Therefore, it is judged as a market where internal semiconductor expansion is stronger than overall market expansion. KB's Thoughts

🔥 New Leading Sector Judgment

Rather than definitively establishing a new sector as the leading force in just one day:

🔥 Reinforcement of Existing Semiconductor & AI Leadership

is an appropriate judgment.

⑨ KOSPI/KOSPI200 Technical Structure

KOSPI started at 6,938.34 → reached 7,027.58 during trading → closed at 7,007.72. Etoday

Structure

Recovery of 6,900
→ Breakthrough of 7,000
→ Closing price above 7,000

.

This is technically positive.

However, what's more important is whether 7,000 can be converted into a support line in the future.

Technical Evaluation

⑩ Elliott/Neely + Wyckoff + Volume Concentration Zone + Spot/Futures/OI + RS + Market Condition

A. Elliott Wave

The primary scenario currently is:

Completion of Corrective Wave → Resumption of Upward Impulse Wave

.

Confirmation conditions:

Maintaining 7,000 → Breaking through 7,030~7,050

Afterward:

7,100 → 7,150

expansion becomes possible.

Conversely, if 7,000 is re-entered and rapidly drops to 6,940, the upward impulse wave hypothesis weakens.

B. Neely Wave

After a surge like today's, further surges are less likely than:

Upward → Price Compression → Re-Breakthrough

.

Therefore, KOSPI:

6,950~7,030

K200 Futures:

1,109~1,120

If the price moves sideways for 2~4 trading days while OI is maintained, it can be judged as a Time Correction (Time Correction) rather than a price adjustment.

C. Wyckoff

Current:

Re-accumulation → Sign of Strength Candidate

.

The next ideal structure is:

Breakthrough 7,000
→ Pressure
→ Support 6,980~7,000
→ Decrease in trading volume
→ Rebound

.

In this case, the possibility of a Last Point of Support (LPS) is high.

D. Volume Profile

Today's HTS K200 futures standard:

Point of Control (POC)

1,111~1,113

The closing price 1,115.10 is above the Point of Control.

Therefore, buyers are currently at an advantage.

Above 1,113 → Retest 1,117.4

Conversely:

Below 1,109 → 1,105

Price movement may accelerate.

E. Comprehensive Analysis of Spot ↔ Futures ↔ OI ↔ Options

Today's key structure:

Foreigners Spot -1,602 billion won
↔
Foreigners Futures +1 trillion 1,471 billion won
+
OI +556
+
Call +1.2 billion won
+
Basis +2.94

.

따라서:

현물에서는 공격적이지 않지만 파생에서는 상승 노출을 크게 늘린 구조

입니다.

이것이 오늘 상승을 100% 강세로 평가하지 않는 이유입니다.

F. 시장국면(Regime)

위험선호 회복(Risk-On Recovery) + 상승 추세 재개 시도

하지만 아직:

광범위 위험선호(Broad Risk-On)는 아님

입니다.

반도체 집중도가 높고 외국인 현물 매수가 확인되지 않았기 때문입니다.

G. 종합 시나리오

★ 가장 중요한 확인 조합

외국인 현물 매수 + 외국인 선물 매수 + 가격↑ + OI↑

이 네 가지가 동시에 나오면 현재 55%인 상승 시나리오를 65~70% 수준까지 높일 근거가 생깁니다.

⑪ 다음 거래일 핵심 지지·저항

★ Most Important Price Tomorrow

K200 Futures 1,109~1,113

is.

⑫ Risks to Watch Out For

① Foreigner Net Selling: Futures +1.15 trillion won, but spot selling -160.2 billion won. If this gap doesn't close, the upward momentum will weaken. MoneyToday

② Market Volatility: Index +1.65%, but the rise is not widespread. Dependence on large semiconductor companies is high.

③ US Treasury Yields: The US 10-year yield broke through 5% during trading, putting pressure on growth stock valuations. MoneyToday

④ VKOSPI: 42.99 fell, but the absolute level is still very high.

⑤ Position Adjustment Before Holidays: Consider that futures and spot trading may be affected by position adjustments ahead of the Chuseok holiday. KB's Thoughts

⑬ Final Market Dashboard

⑭ Today's Key Conclusions

Today, KOSPI recovering to 7,000 is less important than the structure of the derivatives market.

The key connection is:

KOSPI +1.65% → K200 +2.01% → Futures +2.07% → Foreigner Futures +1,147.1 billion won → OI +556 → Basis +2.94 → Foreigner Call Net Buying

.

Therefore, we place more weight on the possibility that new buying positions (Long Build) were partly accompanied by short position covering (Short Covering).

However, today's most important weakness is also clear.

Foreigners sold -160.2 billion won in cash.

Institutions and other corporations received cash, while foreigners massively bought futures. Therefore, it is still premature to conclude that "foreign capital has fully returned to the Korean market."

Furthermore, the core of KOSPI's recovery to 7,000 today was semiconductors. Samsung Electronics surged +4.98%, and the rally spread to semiconductor equipment, but it did not reach all market stocks. Herald Economy

★ Next Trading Day Confirmation Order

K200 Futures 1,109~1,113 Defense
→ Foreigners Maintain Futures Net Buying
→ Foreigners Switch to Spot Net Buying
→ OI Maintenance/Increase
→ Breakthrough of 1,117.4
→ Relative Strength (RS) Expansion Outside Semiconductors

This is the order.

Among these, if foreigners switch back to buying in the spot market Price↑ + OI↑ + Foreigners Spot & Futures Simultaneous Buyingare created, then today's rise is interpreted as the beginning of a new upward wave rather than just a rebound.

Conversely, if 1,109 Breakout + Foreigners Switch to Futures Net Selling + Price Drop Despite OI Increase appears, the possibility of building new short positions (New Short) should be raised immediately.

Final Judgment: Upward Advantage — However, a Market Where Derivatives Are One Step Ahead of Spot