KOSPI 3/4 Close (Locked)
5,093.54
-12.06% d/d | S1 + S5 cross-validation
What to Buy Now in the Domestic Market Rebound Section on March 5th
Short-term (2-6 weeks) tactical allocation report. Only cross-validated (2 independent sources) data is locked as Canonical.
KOSDAQ 3/4 Close (Locked)
978.44
-14.00% d/d | S2 + S5 cross-validation
KOSPI 3/5 19:28 (Provisional)
5,684.16
+11.60% | Single source (S1), excluding lock
Samsung 3/4 Close (Locked)
172,200
-11.74% d/d | S3 + S5 cross-validation
SK Hynix 3/4 Close (Locked)
849,000
-9.58% d/d | S4 + S5 cross-validation
Weighted Desk Score
+63 / OW
Macro20 Industry15 Indicator20 Technical15 Product20 News10
Executive Summary
I. Summary of Conclusions
- Position Direction: OW (Overweight) based on short-term tactics. However, entry in installments is a prerequisite as it is a transition period to a volatility regime.
- Priority Purchase: 1st priority SK Hynix, 2nd priority Samsung Electronics. The rationale is that in the rebound phase on 3/5 after the plunge on 3/4, large semiconductor stocks showed recovery elasticity exceeding the index beta.
- Risk Management: 40% of total tactical funds are maintained as cash buffer. Automatic reduction if stop-loss rules (individual -6%, portfolio -4%) are violated.
Market Context
II. Market Context (Macro + Industry)
Regime Judgment: FACT After the continuous sharp declines of 3/3 (-7.24%) and 3/4 (-12.06%), a rebound was confirmed in the early part of 3/5 (S1, S5, S6). This is closer to the first wave of beta rebound after a liquidity shock rather than a trend recovery.
Industry Priority: INFERENCE Large semiconductor stocks lead in the early stages of the index rebound. After the drop based on the closing price on 3/4 (Samsung -11.74%, SK -9.58%), a +5% gap-up in the early part of 3/5, and an increase in the recovery width based on intraday/delayed quotes (S3, S4, S5, S6).
Macro Constraints: FACT The KRW/USD exchange rate on 3/4 remained weak at 1,476.2 won (S5), so chasing the rebound requires immediate reduction of risky assets in the section where the exchange rate worsens again.
Signal Stack
III. Signal Stack (Indicator + Technical + Business/Product)
Macro & Rates DeskNeutral / Medium
Rationale: Exchange rate burden (weak Korean won) remains. Macro confirmation of continued rebound is still insufficient.
Invalidation: Immediate withdrawal of OW in case of further surge in KRW/USD (re-acceleration of risk-off).
Industry DeskBullish / High
Rationale: The relative strength recovery of large semiconductor stocks is the fastest after the sharp decline.
Invalidation: Failure of the semiconductor leader to rebound (re-departure from the previous day's closing price).
Indicator DeskBullish / Medium
Rationale: Expansion of KOSPI/KOSDAQ simultaneous oversold rebound range (around +7~8% during 3/5 trading).
Invalidation: When the rebound range is reduced and the trading volume decreases sharply at the same time.
Technical & Flow DeskBullish / Medium
Rationale: The activation of the 09:06 buy-side sidecar is a signal of short-term supply and demand reversal (S6).
Invalidation: When the KOSPI falls below the early 5,250s (near the opening price on 3/5).
Business/Product DeskBullish / Medium
Rationale: Large memory stocks are at the center of earnings leverage in the domestic semiconductor chain.
Invalidation: If the industry/price signal is not confirmed for a long time, it will be reduced for trading only.
News & Catalyst DeskNeutral / Medium
Rationale: The rebound news flow is strong, but news of structural risk resolution is limited.
Invalidation: Immediate defensive conversion when negative news about policy/external variables reignites.
| Desk | Weight | Signal | Score | Evidence Tag |
|---|---|---|---|---|
| Macro | 20 | Neutral | 0 | FACT |
| Industry | 15 | Bullish | +15 | FACT |
| Indicators | 20 | Bullish | +20 | FACT |
| Technical/Flow | 15 | Bullish | +8 | INFERENCE |
| Business/Product | 20 | Bullish | +20 | NARRATIVE |
| News/Catalyst | 10 | Neutral | 0 | FACT |
| Total | 100 | OW Bias | +63 | - |
Catalyst Timeline
IV. Catalyst Timeline & News Risk Map
| Time (KST) | Event | Market Impact | Type | Source |
|---|---|---|---|---|
| 2026-03-03 Close | KOSPI Plunge | 5,791.91 / -7.24% | FACT | S1,S5 |
| 2026-03-04 Close | KOSPI·KOSDAQ Plunge, Semiconductor Giants Fall Together | KOSPI -12.06%, KOSDAQ -14.00% | FACT | S1,S2,S5 |
| 2026-03-05 09:06 | buy-side sidecar triggered (KOSPI200 futures) | +10.84% to 844.00 | FACT | S6 |
| 2026-03-05 09:20 | Opening Rebound | KOSPI 5,250.92 (+3.09%) | FACT | S7 |
| 2026-03-05 11:20 | Rebound Expansion | KOSPI +7.50%, KOSDAQ +8.06% | FACT | S8 |
| 2026-03-05 19:15-19:28 | High-Beta Recovery Based on Delayed Quotes | KOSPI +11.60%, KOSDAQ +8.44% | FACT | S1,S2 (single-source provisional) |
Policy/Regulatory Risk
Responsiveness policies to rapidly changing markets contribute to short-term stability, but if news of policy absence comes out, rebound confidence may plummet.
Liquidity Gap Risk
Rebounds after continuous sharp declines leave a liquidity gap. If the gap between the opening and closing prices widens, there is a risk of increased losses from chasing purchases.
FX Shock Risk
If the Korean won weakens again, foreign investors may resume reducing their exposure to risky assets, making beta long positions vulnerable.
Trader Persona Action Plan
V. Trader Execution Plan (Base / Bull / Bear)
Base
Assumption: Rebound continues but volatility remains high
KOSPI zone: 5,450-5,750
Action: SK Hynix 35%, Samsung Electronics 25%, Cash 40%
Risk: Reduce 1/2 if individual -6% or index falls below 5,250
Bull
Assumption: Rebound expands into trend reversal
KOSPI zone: 5,750 settles higher
Action: Reduce cash from 40% -> 20%, increase semiconductor weighting
Risk: Immediately return to Base if intraday sharp decline (>4%) recurs
Bear
Assumption: Re-decline after short covering ends
KOSPI zone: 5,250 falls below
Action: Stop new purchases, reduce 50-70% of holdings
Risk: Slippage increases due to lack of liquidity in a sharp decline
| Pick | Rationale | Entry (Model, not fact) | Target (Model) | Stop (Hard) | Sizing |
|---|---|---|---|---|---|
| SK하이닉스 | Superior recovery elasticity after sharp decline. Beta leader with +21.20% delayed quote on 3/5 (S4). | 980,000-1,010,000 | 1,120,000 | 940,000 | 35% |
| Samsung Electronics | Index core beta. Confirmed rebound (+13.53%) on 3/5 after sharp decline (-11.74%) on 3/4 (S3, S5). | 188,000-193,000 | 205,000 | 183,000 | 25% |
The above Entry/Target/Stop is an execution band based on INFERENCE, and is a model value for risk management, not factual data.
Risk Controls
VI. Portfolio Risk Control and Invalidation Triggers
Critical
Withdraw OW if KOSPI closes below 5,250, switch to defensive at the opening price the next day.
High
Reduce semiconductor weighting by 50% if KRW/USD surges again and foreign net selling occur simultaneously.
Medium
Stop new entries if rebound trading volume decreases sharply and the gap between intraday high and closing price widens.
Data Source Dashboard
VII. Data Source Dashboard
| Metric | Count | Status | Note |
|---|---|---|---|
| Core Quantitative Indicators (Total) | 10 | Tracked | Index/Large Cap/Event Figures |
| 2-Source Cross-Validation Completed | 5 | Pass | Reflect Canonical LOCKED |
| Single Source Provisional Value | 5 | Flagged | 3/5 Intraday/After-Hours Figures, Excluding Lock |
| Mismatch Cases | 2 | Logged | Resolved/Classified in Reconciliation Log |
| Unresolved Conflicts | 0 | Clear | No Impact on Decision Making |
Appendix
VIII. Appendix
A. Canonical Data Table (LOCKED)
| Metric | Value | Timestamp | Unit | Source A | Source B | Lock |
|---|---|---|---|---|---|---|
| KOSPI close | 5,791.91 (-7.24%) | 2026-03-03 close | index pts | S1 | S5 | LOCKED |
| KOSPI close | 5,093.54 (-12.06%) | 2026-03-04 close | index pts | S1 | S5 | LOCKED |
| KOSDAQ close | 978.44 (-14.00%) | 2026-03-04 close | index pts | S2 | S5 | LOCKED |
| Samsung close | 172,200 (-11.74%) | 2026-03-04 close | KRW | S3 | S5 | LOCKED |
| SK Hynix close | 849,000 (-9.58%) | 2026-03-04 close | KRW | S4 | S5 | LOCKED |
Locked at 2026-03-05 20:05 KST. Lock rule: Only includes cases where two independent sources match or where the possibility of time-difference interpretation is specified.
B. Reconciliation Log
| Metric | source_a | source_b | delta | resolution |
|---|---|---|---|---|
| KOSPI 2026-03-04 close | S5 article partial context value: 5,094.54 | S1/S5 text·table: 5,093.54 | 1.00 pt | Judged as typo/context mismatch, adopted 5,093.54. |
| 3/5 Rebound Rate Interpretation | S7/ |