Today’s Calls
Samsung Electronics +4.13% Leads; Defense Names Retreat — Wednesday Opens With Mixed Signals
Tuesday, August 11 (2026) closed with Samsung Electronics up 4.13% to ₩239,500 and SK hynix edging 0.35% higher to ₩1,425,000, while the defense and shipbuilding cluster — Korea Aerospace Industries, Hanwha Ocean, Hyundai Rotem, Hanwha Systems — gave back between 5.57% and 12.07%.Wednesday’s open arrives with overnight US equity futures slightly negative (S&P 500 futures −0.28%, Nasdaq 100 futures −0.36%), while Nikkei CME futures added 0.49%; Japan’s cash market was closed Monday for Mountain Day.
Today’s Calls
Where the day’s calls are placed by number — grading starts with the Early Session edition
Today’s five calls — KOSPI +0.5–1.5%, Samsung Electronics +1–2%
Five calls go on the record at 07:30 KST today — KOSPI higher +0.5–1.5% (P1), KOSDAQ flat −0.3 to +0.5% (P2), Samsung Electronics +1–2% (P3), SK hynix +1.5–2.5% (P4), and Jusung Engineering flat-to-lower −2 to +2% (P5).Scoring begins with the Morning Session edition (10:00 KST) once the market opens; final verdicts run in tonight’s Final edition. We do not grade before the open.Yesterday (August 11) finished 0 hits, 1 partial and 4 misses: the KOSPI closed +0.73% against a call for a decline (✗), the KOSDAQ +0.39% earned partial credit (△), and SK hynix +0.35%, Hanwha Aerospace −4.69% and Alteogen −5.89% all missed.
No brokerage reports were published in today’s data feed; the single-name calls above relied solely on quantitative regime statistics and prior-day momentum patterns.
The world overnight — how the US session ended
A window on what happened in the US market overnight
SOX +0.87%, S&P 500 −0.32%, Nasdaq −0.60% on August 11 — Chips Diverge From Broad Market
On August 11 (2026), the S&P 500 closed at 7,728.20 (−0.32%), the Nasdaq at 26,445.45 (−0.60%), and the SOX semiconductor index at 12,098.47 (+0.87%).The Wall Street directional scoreboard stands at 15/28 (54% hit rate, 3-day horizon) across nine broker desks; in the 2026 YTD sample, Korean equities followed a positive SOX print with a KOSPI gain in approximately 39 of 139 total sessions where either market led, though the categories overlap — direct SOX→KOSPI next-day probability is not separately tabulated in the available data.
Korea–U.S. mutual following — overnight grading
A window on which market followed which
SOX Rose 0.87% on Aug 11 — In 2026 YTD, Korean Equities Followed US Chips in 39 of 139 Sessions
The SOX Philadelphia Semiconductor Index rose 0.87% on August 11 (2026), while overnight S&P 500 futures are −0.28% and Nasdaq 100 futures are −0.36% as of 05:00 KST on August 12.In the 2026 YTD sample of 139 sessions, Korean equities followed the US direction in 39 cases, US markets followed Korea in 30, both moved together in 46, and neither tracked the other in 24.
The accumulated 2026 data show Korea-follows-US occurring in roughly 28% of sessions (39/139), meaning a positive SOX print does not mechanically translate into a KOSPI gain on the following day.With overnight US index futures mildly negative and the SOX reading positive, the cross-signal is mixed — historical split-signal sessions in this regime do not cluster toward either outcome in the available data.
Overnight SOX ↔ same-day KOSPI in the same direction (|SOX| ≥ 0.5%) = Korea following · same-day KOSPI ↔ that night’s SOX in the same direction (|KOSPI| ≥ 0.5%) = the U.S. following
Night window —EWYofficial indicator
A window on what overnight futures foreshadow for the next day’s open
S&P 500 Futures −0.28%, Nasdaq 100 Futures −0.36%, Nikkei CME +0.49% at 05:00 KST
As of 05:00 KST on Wednesday, August 12 (2026), overnight US and Nikkei futures show: S&P 500 futures (ES) −0.28% at 7,753.25, Nasdaq 100 futures (NQ) −0.36% at 29,646.75, and Nikkei CME futures (yen-denominated) +0.49% at 67,195 — these are CME-linked proxies, not the Korea 200 night futures, and carry up to ±1 hour timing approximation.The mixed signal (broad US futures negative, chip-adjacent Nikkei futures positive) does not have a clean historical precedent in the tabulated cross-follow data; in the 2026 YTD, split-signal sessions (Korea following US in 39 of 139) show no dominant directional outcome recorded in the available data.
Pre-open08:00~09:00 — single-price auction (open/close)The single-price auction window (before the open and just before the close), where orders are pooled and matched at once.When large volume crowds into this window, a gap is created.forecast
A window on where the pre-open auction is pulling the opening price
Nikkei CME Futures +0.49% vs. S&P 500 Futures −0.28% — Chip vs. Broad Split Heads Into Wednesday Auction
When the simultaneous-bid auction opens at 08:30 KST, the gap direction will be shaped by the overnight split: Nikkei CME futures +0.49% pulling against S&P 500 futures −0.28% and Nasdaq 100 futures −0.36% — watch whether the chip complex (Samsung Electronics, SK hynix) opens in line with the positive SOX or tracks the softer broad-index futures.Defense and shipbuilding names fell sharply on Tuesday; whether that sector’s selling has exhausted itself or continues will be a secondary auction signal — prior rotation episodes in the 2026 regime showed a 3-day recovery rate of 70% (n=30), but Tuesday’s move does not match the rotation definition in the data exactly.
Previous-Day Review
A window that retraces what happened in the previous session
Samsung Electronics +4.13%, Korea Aerospace −12.07%: Tech Bid, Defense Sold on Tuesday
The Silmari Fear Gauge
A window measuring market anxiety through volatility, margin lending and short selling
Crash-Precursor Score Holds at 3 — ADR Signal Still Live, Short-Surge Counter at Zero
The composite crash-precursor score is 3 as of the August 11 (2026) close, driven by an ADR sub-signal of 2 (reference: US session ADR −16.7% as of July 28) and a selling-acceleration sub-signal of 1 (based on confirmed flow data through August 10).The short-surge sub-signal registers 0 (short positions current to August 10 on a T+2 disclosure basis), and the sentiment-90+ sub-signal is also 0 (gauge reading through August 11).
In the 2026 regime (current phase), short-surge events were followed five days later by an average KOSPI return of −1.76% across 99 cases, with a down-probability of 54% — against a regime baseline of +2.98%, implying an excess of −4.74 percentage points.In the 2025 transition period (111 cases), the same event averaged +1.35% with a 45% down-probability; in the 2018–2024 regime (150 cases), −0.11% with a 57% down-probability.
Today (Wednesday, August 12, 2026) carries no independently flagged trigger in the collected data — the elevated ADR sub-signal and selling-acceleration sub-signal remain live from prior sessions, but no new short-surge or sentiment-90+ trigger has been recorded. The judgment is each reader’s own.
The won — the signal is the speed of the move, not its direction
A window on the pressure the won-dollar rate puts on foreign flows
Won Quoted at 1,412.44 per Dollar on Aug 11, Up 0.39% on the Day
The won was quoted at 1,412.44 per dollar on August 11 (2026), up 0.39% on the day, while the dollar index (DXY) stood at 99.81, flat on the day.A won at this level (~1,412) represents a modest headwind for import-cost-sensitive names and a tailwind for exporters, though the EWY Korea ETF — a proxy for foreign investor appetite — rose 2.53% on August 11, suggesting dollar-denominated demand for Korean equities remained positive on that session.
The SilmariDecouplingWhen two markets that used to move together break apart and move separately.The wider the gap, the less any single index can tell you about the market.Gauge
A window on the pattern in the KOSPI–KOSDAQ decoupling
Jusung Engineering +12.15% Led KOSDAQ Volume at ₩519.0bn; Alteogen Shed 5.89% on ₩245.4bn Turnover
Warning
A window flagging in advance where today’s session calls for caution
Crash-Precursor Score 3: ADR Sub-Signal 2, Selling-Acceleration 1 — Short-Surge Counter Quiet
The crash-precursor score of 3 is held up by an ADR sub-signal of 2 (anchored to the −16.7% US-session ADR print from July 28) and a selling-acceleration sub-signal of 1 from confirmed August 7–10 flow data; these are inputs, not forecasts, and the score carries no defined action threshold in the published data.Recent short-surge events in Samsung Electronics (surge ×53.6 on July 27; ×8.8 on July 28) showed highly dispersed 5-day outcomes: −18.5% to +19.32% at three days, −5.71% to +9.09% at five days — the range is wide enough that the signal alone does not resolve direction.In the 2026 regime, rotation events (semiconductors −2%+ with defensives outperforming by 2pp+) were followed three days later by a KOSPI gain in 21 of 30 cases (up-probability 70%, average +1.92%); Tuesday’s sharp defense-sector selloff alongside chip gains is a partial inverse of that pattern and does not map cleanly to either historical bucket.