Last 59 trading days. "Overnight" = today's Open vs the PRIOR day's Close
(the same move plotted as the pink dotted line on the chart) — each day's own Open→Close
move is not counted here. Overnight $/% is what you'd have earned holding only from close
to next open; Cum. Index is the running compounded value shown on the chart's pink line.
Date
Prior Close
Overnight $
Overnight %
Cum. Index
Open
High
Low
Close
2026-10-27
₩826.00
+39.00
+4.72%
₩1,982.42
₩865.00
₩899.00
₩785.00
₩830.00
2026-10-26
₩698.00
+9.00
+1.29%
₩1,893.04
₩707.00
₩896.00
₩704.00
₩826.00
2026-10-23
₩741.00
+0.00
+0.00%
₩1,868.94
₩741.00
₩809.00
₩680.00
₩698.00
2026-10-22
₩834.00
+22.00
+2.64%
₩1,868.94
₩856.00
₩858.00
₩735.00
₩741.00
2026-10-21
₩864.00
+16.00
+1.85%
₩1,820.90
₩880.00
₩908.00
₩825.00
₩834.00
2026-10-20
₩983.00
+16.00
+1.63%
₩1,787.80
₩999.00
₩1,050.00
₩861.00
₩864.00
2026-10-19
₩1,049.00
+86.00
+8.20%
₩1,759.16
₩1,135.00
₩1,198.00
₩970.00
₩983.00
2026-10-16
₩807.00
+24.00
+2.97%
₩1,625.87
₩831.00
₩1,049.00
₩829.00
₩1,049.00
2026-10-15
₩773.00
+79.00
+10.22%
₩1,578.91
₩852.00
₩937.00
₩762.00
₩807.00
2026-10-14
₩665.00
+4.00
+0.60%
₩1,432.51
₩669.00
₩864.00
₩669.00
₩773.00
2026-10-13
₩555.00
+1.00
+0.18%
₩1,423.95
₩556.00
₩721.00
₩545.00
₩665.00
2026-10-12
₩610.00
+0.00
+0.00%
₩1,421.39
₩610.00
₩610.00
₩550.00
₩555.00
2026-10-08
₩665.00
-6.00
-0.90%
₩1,421.39
₩659.00
₩710.00
₩604.00
₩610.00
2026-10-07
₩579.00
+6.00
+1.04%
₩1,434.33
₩585.00
₩752.00
₩585.00
₩665.00
2026-10-06
₩617.00
-5.00
-0.81%
₩1,419.62
₩612.00
₩673.00
₩575.00
₩579.00
2026-10-02
₩685.00
+8.00
+1.17%
₩1,431.21
₩693.00
₩725.00
₩603.00
₩617.00
2026-10-01
₩800.00
-8.00
-1.00%
₩1,414.69
₩792.00
₩800.00
₩574.00
₩685.00
2026-09-30
₩711.00
+7.00
+0.98%
₩1,428.98
₩718.00
₩820.00
₩678.00
₩800.00
2026-09-29
₩890.00
+5.00
+0.56%
₩1,415.05
₩895.00
₩899.00
₩701.00
₩711.00
2026-09-28
₩965.00
-2.00
-0.21%
₩1,407.15
₩963.00
₩965.00
₩861.00
₩890.00
2026-09-23
₩1,131.00
-144.00
-12.73%
₩1,410.07
₩987.00
₩1,047.00
₩802.00
₩965.00
2026-09-22
₩1,131.00
+0.00
+0.00%
₩1,615.79
₩1,131.00
₩1,131.00
₩1,131.00
₩1,131.00
2026-09-21
₩1,145.00
-9.00
-0.79%
₩1,615.79
₩1,136.00
₩1,193.00
₩1,123.00
₩1,131.00
2026-09-18
₩1,079.00
+21.00
+1.95%
₩1,628.59
₩1,100.00
₩1,155.00
₩1,078.00
₩1,145.00
2026-09-17
₩1,070.00
+1.00
+0.09%
₩1,597.50
₩1,071.00
₩1,290.00
₩1,071.00
₩1,079.00
2026-09-16
₩1,135.00
-8.00
-0.70%
₩1,596.01
₩1,127.00
₩1,134.00
₩1,068.00
₩1,070.00
2026-09-15
₩1,130.00
+10.00
+0.88%
₩1,607.34
₩1,140.00
₩1,151.00
₩1,100.00
₩1,135.00
2026-09-14
₩1,250.00
+0.00
+0.00%
₩1,593.24
₩1,250.00
₩1,253.00
₩1,123.00
₩1,130.00
2026-09-11
₩1,258.00
+0.00
+0.00%
₩1,593.24
₩1,258.00
₩1,265.00
₩1,194.00
₩1,250.00
2026-09-10
₩1,327.00
+1.00
+0.08%
₩1,593.24
₩1,328.00
₩1,333.00
₩1,247.00
₩1,258.00
2026-09-09
₩1,299.00
-16.00
-1.23%
₩1,592.04
₩1,283.00
₩1,372.00
₩1,275.00
₩1,327.00
2026-09-08
₩1,294.00
+2.00
+0.15%
₩1,611.89
₩1,296.00
₩1,353.00
₩1,285.00
₩1,299.00
2026-09-07
₩1,307.00
+7.00
+0.54%
₩1,609.41
₩1,314.00
₩1,375.00
₩1,240.00
₩1,294.00
2026-09-04
₩1,301.00
+0.00
+0.00%
₩1,600.83
₩1,301.00
₩1,335.00
₩1,281.00
₩1,307.00
2026-09-03
₩1,315.00
-2.00
-0.15%
₩1,600.83
₩1,313.00
₩1,320.00
₩1,250.00
₩1,301.00
2026-09-02
₩1,370.00
+1.00
+0.07%
₩1,603.27
₩1,371.00
₩1,376.00
₩1,299.00
₩1,315.00
2026-09-01
₩1,426.00
+0.00
+0.00%
₩1,602.10
₩1,426.00
₩1,429.00
₩1,348.00
₩1,370.00
2026-08-31
₩1,497.00
+0.00
+0.00%
₩1,602.10
₩1,497.00
₩1,497.00
₩1,395.00
₩1,426.00
2026-08-28
₩1,521.00
+0.00
+0.00%
₩1,602.10
₩1,521.00
₩1,530.00
₩1,480.00
₩1,497.00
2026-08-27
₩1,402.00
+2.00
+0.14%
₩1,602.10
₩1,404.00
₩1,650.00
₩1,400.00
₩1,521.00
2026-08-26
₩1,464.00
+81.00
+5.53%
₩1,599.82
₩1,545.00
₩1,545.00
₩1,391.00
₩1,402.00
2026-08-25
₩1,435.00
-1.00
-0.07%
₩1,515.95
₩1,434.00
₩1,480.00
₩1,329.00
₩1,464.00
2026-08-24
₩1,502.00
+13.00
+0.87%
₩1,517.00
₩1,515.00
₩1,575.00
₩1,411.00
₩1,435.00
2026-08-21
₩1,641.00
+0.00
+0.00%
₩1,503.99
₩1,641.00
₩1,642.00
₩1,492.00
₩1,502.00
2026-08-20
₩1,690.00
+0.00
+0.00%
₩1,503.99
₩1,690.00
₩1,730.00
₩1,610.00
₩1,641.00
2026-08-19
₩1,721.00
-17.00
-0.99%
₩1,503.99
₩1,704.00
₩1,738.00
₩1,659.00
₩1,690.00
2026-08-18
₩1,746.00
+5.00
+0.29%
₩1,518.99
₩1,751.00
₩1,755.00
₩1,694.00
₩1,721.00
2026-08-14
₩1,890.00
-11.00
-0.58%
₩1,514.65
₩1,879.00
₩1,885.00
₩1,735.00
₩1,746.00
2026-08-13
₩1,833.00
+53.00
+2.89%
₩1,523.52
₩1,886.00
₩1,915.00
₩1,725.00
₩1,890.00
2026-08-12
₩1,780.00
+1.00
+0.06%
₩1,480.71
₩1,781.00
₩1,860.00
₩1,764.00
₩1,833.00
2026-08-11
₩1,803.00
+0.00
+0.00%
₩1,479.87
₩1,803.00
₩1,819.00
₩1,741.00
₩1,780.00
2026-08-10
₩1,780.00
+0.00
+0.00%
₩1,479.87
₩1,780.00
₩1,817.00
₩1,753.00
₩1,803.00
2026-08-07
₩1,737.00
+21.00
+1.21%
₩1,479.87
₩1,758.00
₩1,877.00
₩1,704.00
₩1,780.00
2026-08-06
₩1,753.00
+0.00
+0.00%
₩1,462.20
₩1,753.00
₩1,770.00
₩1,690.00
₩1,737.00
2026-08-05
₩1,737.00
+3.00
+0.17%
₩1,462.20
₩1,740.00
₩1,840.00
₩1,700.00
₩1,753.00
2026-08-04
₩1,520.00
+4.00
+0.26%
₩1,459.68
₩1,524.00
₩1,790.00
₩1,524.00
₩1,737.00
2026-08-03
₩1,509.00
+45.00
+2.98%
₩1,455.84
₩1,554.00
₩1,709.00
₩1,502.00
₩1,520.00
2026-07-31
₩1,464.00
+50.00
+3.42%
₩1,413.69
₩1,514.00
₩1,612.00
₩1,466.00
₩1,509.00
2026-07-30
₩1,500.00
-133.00
-8.87%
₩1,367.00
₩1,367.00
₩1,528.00
₩1,357.00
₩1,464.00
📈 Overnight % Gain Trend
Cumulative overnight-only return, indexed to 0% on 2026-07-29
(same window as the chart overlay and table above, just plotted as % instead of $).
🗓️ Overnight End-of-Month PnL
One checkpoint per calendar month (value at the last trading day seen that month) from the
same overnight-only cumulative series above. The first and last
month shown may be partial if the data window doesn't start/end on a month boundary.
Month
Start Value
End Value
PnL $
PnL %
2026-07
₩1,500.00
₩1,413.69
-86.31
-5.75%
2026-08
₩1,413.69
₩1,602.10
+188.41
+13.33%
2026-09
₩1,602.10
₩1,428.98
-173.12
-10.81%
2026-10
₩1,428.98
₩1,982.42
+553.43
+38.73%
📅 Seasonality — Adjusted Close by Year
Each line is one calendar year's adjusted close price (split- and dividend-adjusted, so a stock split does not show as a
crash), or the % change from that year's first trading day in "% from Jan 1" mode, aligned by month/day so the same point in the calendar lines
up across years. Most recent year is drawn thicker. Click a year in the legend to hide/show it.
🌙 Overnight vs. Intraday Return
Overnight (close→next open) Intraday (open→close)
From 2010-01-04 to 2026-10-23 (4,102 trading days), $1 invested
overnight-only would now be worth $159.41;
$1 invested intraday-only would be worth $0.00.
009190's historical return has leaned mostly on the overnight session.
This reflects a statistical pattern in past prices, not a trading strategy or investment advice —
it ignores transaction costs and slippage.
🎯 Best Strategy Backtest
See which saved strategy has the best real backtested win-rate on 009190, with buy/sell triggers plotted right on the chart.
Watch an animated paper-trading replay of buying each lower-Bollinger-band touch and selling at the upper band on this stock, with your own capital and look-back, and the profit and loss building up as it plays.