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
₩292,000.00
+8500.00
+2.91%
₩314,964.53
₩300,500.00
₩307,000.00
₩298,500.00
₩301,000.00
2026-10-26
₩288,000.00
-4500.00
-1.56%
₩306,055.38
₩283,500.00
₩296,500.00
₩283,500.00
₩292,000.00
2026-10-23
₩288,500.00
-6000.00
-2.08%
₩310,913.40
₩282,500.00
₩288,500.00
₩273,500.00
₩288,000.00
2026-10-22
₩290,000.00
-2500.00
-0.86%
₩317,516.87
₩287,500.00
₩299,000.00
₩283,500.00
₩288,500.00
2026-10-21
₩275,000.00
+3500.00
+1.27%
₩320,277.89
₩278,500.00
₩293,500.00
₩275,000.00
₩290,000.00
2026-10-20
₩285,000.00
-4500.00
-1.58%
₩316,252.85
₩280,500.00
₩283,500.00
₩269,000.00
₩275,000.00
2026-10-19
₩286,500.00
-3500.00
-1.22%
₩321,326.43
₩283,000.00
₩285,000.00
₩272,500.00
₩285,000.00
2026-10-16
₩267,500.00
+17000.00
+6.36%
₩325,300.43
₩284,500.00
₩293,500.00
₩275,000.00
₩286,500.00
2026-10-15
₩291,500.00
-11500.00
-3.95%
₩305,862.44
₩280,000.00
₩282,500.00
₩262,000.00
₩267,500.00
2026-10-14
₩300,000.00
+500.00
+0.17%
₩318,424.65
₩300,500.00
₩304,000.00
₩286,000.00
₩291,500.00
2026-10-13
₩314,500.00
-10000.00
-3.18%
₩317,894.83
₩304,500.00
₩305,500.00
₩288,000.00
₩300,000.00
2026-10-12
₩317,500.00
+1500.00
+0.47%
₩328,334.72
₩319,000.00
₩321,000.00
₩308,000.00
₩314,500.00
2026-10-08
₩336,000.00
-4000.00
-1.19%
₩326,790.83
₩332,000.00
₩333,500.00
₩317,500.00
₩317,500.00
2026-10-07
₩342,000.00
-2000.00
-0.58%
₩330,728.07
₩340,000.00
₩351,000.00
₩335,000.00
₩336,000.00
2026-10-06
₩346,000.00
+7500.00
+2.17%
₩332,673.53
₩353,500.00
₩353,500.00
₩340,000.00
₩342,000.00
2026-10-02
₩347,000.00
-4500.00
-1.30%
₩325,615.39
₩342,500.00
₩347,000.00
₩338,000.00
₩346,000.00
2026-10-01
₩341,500.00
-2500.00
-0.73%
₩329,893.55
₩339,000.00
₩347,000.00
₩336,500.00
₩347,000.00
2026-09-30
₩345,000.00
+3000.00
+0.87%
₩332,326.39
₩348,000.00
₩353,500.00
₩340,000.00
₩341,500.00
2026-09-29
₩345,500.00
-2000.00
-0.58%
₩329,461.51
₩343,500.00
₩349,000.00
₩340,500.00
₩345,000.00
2026-09-28
₩367,000.00
-500.00
-0.14%
₩331,379.77
₩366,500.00
₩366,500.00
₩344,000.00
₩345,500.00
2026-09-23
₩367,000.00
+7000.00
+1.91%
₩331,831.86
₩374,000.00
₩379,500.00
₩365,000.00
₩367,000.00
2026-09-22
₩367,500.00
+15000.00
+4.08%
₩325,621.10
₩382,500.00
₩385,500.00
₩361,000.00
₩367,000.00
2026-09-21
₩351,000.00
+2000.00
+0.57%
₩312,851.65
₩353,000.00
₩369,000.00
₩352,500.00
₩367,500.00
2026-09-18
₩355,500.00
+9500.00
+2.67%
₩311,079.12
₩365,000.00
₩365,000.00
₩351,000.00
₩351,000.00
2026-09-17
₩353,500.00
+3500.00
+0.99%
₩302,982.54
₩357,000.00
₩363,000.00
₩352,000.00
₩355,500.00
2026-09-16
₩347,000.00
-4500.00
-1.30%
₩300,012.12
₩342,500.00
₩355,500.00
₩342,000.00
₩353,500.00
2026-09-15
₩358,500.00
-7000.00
-1.95%
₩303,953.88
₩351,500.00
₩357,500.00
₩344,500.00
₩347,000.00
2026-09-14
₩367,000.00
-13000.00
-3.54%
₩310,007.02
₩354,000.00
₩361,000.00
₩347,000.00
₩358,500.00
2026-09-11
₩379,500.00
-16000.00
-4.22%
₩321,391.46
₩363,500.00
₩374,000.00
₩360,500.00
₩367,000.00
2026-09-10
₩376,000.00
-5500.00
-1.46%
₩335,537.99
₩370,500.00
₩383,000.00
₩361,000.00
₩379,500.00
2026-09-09
₩382,000.00
-500.00
-0.13%
₩340,518.98
₩381,500.00
₩385,000.00
₩375,000.00
₩376,000.00
2026-09-08
₩384,000.00
+2000.00
+0.52%
₩340,965.27
₩386,000.00
₩401,000.00
₩379,500.00
₩382,000.00
2026-09-07
₩367,000.00
+11000.00
+3.00%
₩339,198.61
₩378,000.00
₩385,000.00
₩368,500.00
₩384,000.00
2026-09-04
₩372,000.00
-500.00
-0.13%
₩329,327.75
₩371,500.00
₩372,000.00
₩352,500.00
₩367,000.00
2026-09-03
₩373,000.00
+10500.00
+2.82%
₩329,770.99
₩383,500.00
₩388,000.00
₩370,000.00
₩372,000.00
2026-09-02
₩390,500.00
-10500.00
-2.69%
₩320,742.06
₩380,000.00
₩398,000.00
₩372,500.00
₩373,000.00
2026-09-01
₩376,500.00
-2500.00
-0.66%
₩329,604.67
₩374,000.00
₩392,000.00
₩369,500.00
₩390,500.00
2026-08-31
₩375,000.00
-14000.00
-3.73%
₩331,807.91
₩361,000.00
₩378,500.00
₩356,500.00
₩376,500.00
2026-08-28
₩375,500.00
-5500.00
-1.46%
₩344,675.81
₩370,000.00
₩380,000.00
₩368,000.00
₩375,000.00
2026-08-27
₩387,500.00
+4000.00
+1.03%
₩349,799.37
₩391,500.00
₩393,500.00
₩370,500.00
₩375,500.00
2026-08-26
₩367,000.00
+5000.00
+1.36%
₩346,225.43
₩372,000.00
₩390,000.00
₩367,000.00
₩387,500.00
2026-08-25
₩364,500.00
+0.00
+0.00%
₩341,571.86
₩364,500.00
₩368,500.00
₩354,500.00
₩367,000.00
2026-08-24
₩395,500.00
-12500.00
-3.16%
₩341,571.86
₩383,000.00
₩383,500.00
₩359,500.00
₩364,500.00
2026-08-21
₩374,000.00
-4000.00
-1.07%
₩352,719.77
₩370,000.00
₩400,000.00
₩368,000.00
₩395,500.00
2026-08-20
₩347,000.00
+10000.00
+2.88%
₩356,532.95
₩357,000.00
₩377,500.00
₩349,000.00
₩374,000.00
2026-08-19
₩369,000.00
-25500.00
-6.91%
₩346,546.04
₩343,500.00
₩350,500.00
₩335,500.00
₩347,000.00
2026-08-18
₩369,000.00
+10000.00
+2.71%
₩372,272.16
₩379,000.00
₩383,500.00
₩363,000.00
₩369,000.00
2026-08-14
₩365,000.00
+4500.00
+1.23%
₩362,449.68
₩369,500.00
₩375,000.00
₩360,500.00
₩369,000.00
2026-08-13
₩357,500.00
+18000.00
+5.03%
₩358,035.54
₩375,500.00
₩380,000.00
₩360,000.00
₩365,000.00
2026-08-12
₩344,500.00
+3000.00
+0.87%
₩340,872.72
₩347,500.00
₩361,500.00
₩347,000.00
₩357,500.00
2026-08-11
₩336,000.00
-3500.00
-1.04%
₩337,929.93
₩332,500.00
₩349,500.00
₩328,000.00
₩344,500.00
2026-08-10
₩336,500.00
+5500.00
+1.63%
₩341,487.09
₩342,000.00
₩353,500.00
₩326,500.00
₩336,000.00
2026-08-07
₩334,000.00
-500.00
-0.15%
₩335,995.34
₩333,500.00
₩338,500.00
₩323,500.00
₩336,500.00
2026-08-06
₩347,500.00
-4500.00
-1.29%
₩336,499.08
₩343,000.00
₩349,500.00
₩322,000.00
₩334,000.00
2026-08-05
₩322,500.00
+16000.00
+4.96%
₩340,913.79
₩338,500.00
₩350,000.00
₩335,000.00
₩347,500.00
2026-08-04
₩329,000.00
+2000.00
+0.61%
₩324,799.70
₩331,000.00
₩332,500.00
₩312,000.00
₩322,500.00
2026-08-03
₩351,500.00
-4500.00
-1.28%
₩322,837.16
₩347,000.00
₩347,000.00
₩322,000.00
₩329,000.00
2026-07-31
₩294,000.00
+41000.00
+13.95%
₩327,023.81
₩335,000.00
₩357,500.00
₩321,000.00
₩351,500.00
2026-07-30
₩285,500.00
+1500.00
+0.53%
₩287,000.00
₩287,000.00
₩322,000.00
₩283,000.00
₩294,000.00
📈 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
₩285,500.00
₩327,023.81
+41523.81
+14.54%
2026-08
₩327,023.81
₩331,807.91
+4784.10
+1.46%
2026-09
₩331,807.91
₩332,326.39
+518.48
+0.16%
2026-10
₩332,326.39
₩314,964.53
-17361.86
-5.22%
📅 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 2014-12-18 to 2026-10-23 (2,897 trading days), $1 invested
overnight-only would now be worth $23.42;
$1 invested intraday-only would be worth $0.13.
028260'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 028260, 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.