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The confirmed close is in — and it differs from the closing edition — Korea Market After-Hours, Aug 26, 2026

The exchange’s confirmed close is 6,808.21 for KOSPI (+0.97%) and 826.87 for KOSDAQ (-0.03%), verified against two sources.The closing edition carried provisional values, noting at the time that the sources disagreed and might be reconciled. They were.After the close, on the alternative trading syst

The Silmari
A daily data newsletter on the Korean stock market — silmari, ‘a clue: the loose end that unravels the knot’
⑤ After-Hours 18:002026.08.26 Wed · No. 23Sentiment — neutral (composite 0.389)
⑤ After-Hours · published 18:00 KST · after the regular session · Note: flow figures are preliminary as published just after the close; the exchange’s confirmed figures appear in that day’s Final Edition (20:00 KST).
01 · VerdictRegular session confirmed (2-source reconciliation)

verdict at evening

The Confirmed FigureThe final value as settled and published by the exchange.This is the figure that goes on the record, so where it differs from a provisional one it must be restated. close is in — and it differs from the closing edition

The exchange’s confirmed close is 6,808.21 for KOSPI (+0.97%) and 826.87 for KOSDAQ (-0.03%), verified against two sources.The closing edition carried Provisional FigureA value that has not been finalised and may change later.Just after the close the sources can disagree, so carrying an unconfirmed figure leaves the next edition out of step. values, noting at the time that the sources disagreed and might be reconciled. They were.After the close, on the alternative trading system Nextrade, an alternative trading systemA second venue where Korean shares trade outside the Korea Exchange.It trades before and after the regular session, so it gauges volume and direction outside those hours., 339 names are up against 232 down, as of 17:25 on a Delayed QuoteA price published after a set interval rather than in real time.It is not the current price but one from twenty minutes earlier, so the timestamp must be stated with it..

Key points
01Confirmed close: KOSPI +0.97% and KOSDAQ -0.03%. KOSPI was revised downward from the provisional figure in the closing edition.
02NXT turnover came to 122,493 hundred million won, with 339 names up, 232 down and 35 unchanged. Outside the regular session, risers outnumber fallers.
03SK hynix leads NXT turnover at 31,111 hundred million won (+0.42%), followed by Samsung Electronics at 24,460 (+1.36%). Their moves differ slightly from the regular-session close.
04Both forecasts placed this morning remain inside their 70%% bands on the confirmed close.
02 · NXTNXT intraday — 20-minute delay · as of 17:25 KST

Evening disclosures —Short sellingSelling borrowed shares first, betting the price will fall.A rising balance means more money is betting on a decline.balance

A window on whether the regular session’s move carried into the evening alternative venue

Risers outnumbered fallers outside the session

On NXT as of 17:25 (20-minute delay), 339 names were up, 232 down and 35 unchanged, on turnover of 122,493 hundred million won.At the top of turnover are SK hynix at +0.42% (31,111 hundred million won), Samsung Electronics at +1.36% (24,460) and Doosan Enerbility at +5.95% (5,275).Hanmi Pharmaceutical is at +4.39% and Samsung Electro-Mechanics at -2.64%.NXT figures are not the Korea Exchange regular session and come on a 20-minute delay, so they can differ from the regular-session close.

03 · Gap risksRisk → same condition in the past → outcome distribution

Tomorrow morninggap risks 4names

A window naming in advance what could shake tomorrow’s opening price

Carrying an unconfirmed figure leaves the next day out of step

ADR

Warning score total: 3

signal 2 points

Short-interest surge

Warning score total: 3

signal 1 point

Selling acceleration

Warning score total: 3

signal 0 points

Sentiment 90+

Warning score total: 3

signal 0 points

05 · Principleas of 18:25 KST on 2026-08-26

Evening Trading Principles

A window recording the trading principles to hold to on the evening of a crash day

What today taught — a figure marked provisional actually changed

The closing edition carried the KOSPI close as provisional, noting that the sources disagreed and might be reconciled. When the confirmed figure arrived, it had indeed changed.Had it been carried without that note, the two editions would have stood with numbers that did not match — it is better to say a figure is unconfirmed while it is.Flows are still provisional too: retail stands at -22,414 hundred million won on KOSPI, institutions at +7,594 and investment firms at +7,685, and these may change once the exchange confirms them.

Sources: Korea Exchange · NXT · own measurements · regular session confirmed 15:30 KST · The Silmari editorial desk.
This edition organises and explains publicly available market data. It is not investment advice. Predictions and their scores are preserved without revision — the judgement is yours.