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
₩213,000.00
+9000.00
+4.23%
₩256,325.36
₩222,000.00
₩225,500.00
₩220,000.00
₩222,000.00
2026-10-26
₩215,500.00
-2000.00
-0.93%
₩245,933.79
₩213,500.00
₩216,000.00
₩211,500.00
₩213,000.00
2026-10-23
₩214,500.00
-8500.00
-3.96%
₩248,237.62
₩206,000.00
₩215,500.00
₩203,500.00
₩215,500.00
2026-10-22
₩223,500.00
-2000.00
-0.89%
₩258,480.44
₩221,500.00
₩226,000.00
₩212,000.00
₩214,500.00
2026-10-21
₩211,500.00
+5500.00
+2.60%
₩260,814.35
₩217,000.00
₩228,000.00
₩217,000.00
₩223,500.00
2026-10-20
₩218,000.00
+1500.00
+0.69%
₩254,203.84
₩219,500.00
₩219,500.00
₩208,750.00
₩211,500.00
2026-10-19
₩215,500.00
-8500.00
-3.94%
₩252,466.69
₩207,000.00
₩219,500.00
₩206,500.00
₩218,000.00
2026-10-16
₩210,000.00
+5000.00
+2.38%
₩262,833.68
₩215,000.00
₩222,500.00
₩210,500.00
₩215,500.00
2026-10-15
₩232,000.00
-15500.00
-6.68%
₩256,721.27
₩216,500.00
₩221,500.00
₩204,500.00
₩210,000.00
2026-10-14
₩232,000.00
+1500.00
+0.65%
₩275,100.85
₩233,500.00
₩241,500.00
₩230,000.00
₩232,000.00
2026-10-13
₩250,500.00
-9000.00
-3.59%
₩273,333.61
₩241,500.00
₩244,000.00
₩228,000.00
₩232,000.00
2026-10-12
₩262,000.00
-2000.00
-0.76%
₩283,519.95
₩260,000.00
₩262,500.00
₩249,500.00
₩250,500.00
2026-10-08
₩268,500.00
+1000.00
+0.37%
₩285,700.87
₩269,500.00
₩270,000.00
₩262,000.00
₩262,000.00
2026-10-07
₩272,000.00
-2500.00
-0.92%
₩284,640.76
₩269,500.00
₩279,500.00
₩268,500.00
₩268,500.00
2026-10-06
₩276,000.00
+2500.00
+0.91%
₩287,281.21
₩278,500.00
₩279,000.00
₩270,000.00
₩272,000.00
2026-10-02
₩276,000.00
-2500.00
-0.91%
₩284,702.39
₩273,500.00
₩277,000.00
₩271,500.00
₩276,000.00
2026-10-01
₩268,500.00
-2000.00
-0.74%
₩287,304.78
₩266,500.00
₩276,000.00
₩264,500.00
₩276,000.00
2026-09-30
₩272,500.00
+2000.00
+0.73%
₩289,460.92
₩274,500.00
₩276,000.00
₩267,500.00
₩268,500.00
2026-09-29
₩270,000.00
-4000.00
-1.48%
₩287,351.91
₩266,000.00
₩276,000.00
₩266,000.00
₩272,500.00
2026-09-28
₩285,500.00
-1000.00
-0.35%
₩291,672.99
₩284,500.00
₩285,500.00
₩270,000.00
₩270,000.00
2026-09-23
₩276,500.00
+8000.00
+2.89%
₩292,698.21
₩284,500.00
₩285,500.00
₩281,000.00
₩285,500.00
2026-09-22
₩274,000.00
+9000.00
+3.28%
₩284,467.68
₩283,000.00
₩283,500.00
₩274,500.00
₩276,500.00
2026-09-21
₩261,000.00
+3000.00
+1.15%
₩275,421.00
₩264,000.00
₩275,000.00
₩263,500.00
₩274,000.00
2026-09-18
₩252,500.00
+8500.00
+3.37%
₩272,291.22
₩261,000.00
₩262,000.00
₩257,500.00
₩261,000.00
2026-09-17
₩253,500.00
+3500.00
+1.38%
₩263,423.50
₩257,000.00
₩259,000.00
₩251,500.00
₩252,500.00
2026-09-16
₩248,500.00
-500.00
-0.20%
₩259,836.02
₩248,000.00
₩254,000.00
₩247,500.00
₩253,500.00
2026-09-15
₩249,000.00
-1000.00
-0.40%
₩260,359.88
₩248,000.00
₩252,000.00
₩246,000.00
₩248,500.00
2026-09-14
₩259,500.00
-10000.00
-3.85%
₩261,409.72
₩249,500.00
₩254,500.00
₩248,500.00
₩249,000.00
2026-09-11
₩269,000.00
-11000.00
-4.09%
₩271,887.06
₩258,000.00
₩261,500.00
₩256,500.00
₩259,500.00
2026-09-10
₩269,500.00
-500.00
-0.19%
₩283,479.15
₩269,000.00
₩270,500.00
₩263,500.00
₩269,000.00
2026-09-09
₩269,500.00
+0.00
+0.00%
₩284,006.06
₩269,500.00
₩275,000.00
₩267,500.00
₩269,500.00
2026-09-08
₩270,000.00
+2000.00
+0.74%
₩284,006.06
₩272,000.00
₩279,000.00
₩269,000.00
₩269,500.00
2026-09-07
₩255,500.00
+11500.00
+4.50%
₩281,917.78
₩267,000.00
₩270,000.00
₩264,000.00
₩270,000.00
2026-09-04
₩250,000.00
+4000.00
+1.60%
₩269,775.25
₩254,000.00
₩259,000.00
₩252,500.00
₩255,500.00
2026-09-03
₩250,500.00
+3500.00
+1.40%
₩265,526.82
₩254,000.00
₩255,000.00
₩243,000.00
₩250,000.00
2026-09-02
₩261,000.00
-9000.00
-3.45%
₩261,867.99
₩252,000.00
₩255,500.00
₩249,500.00
₩250,500.00
2026-09-01
₩260,000.00
-3500.00
-1.35%
₩271,220.42
₩256,500.00
₩262,500.00
₩254,000.00
₩261,000.00
2026-08-31
₩257,000.00
-8000.00
-3.11%
₩274,921.28
₩249,000.00
₩260,000.00
₩246,000.00
₩260,000.00
2026-08-28
₩266,000.00
-3500.00
-1.32%
₩283,754.09
₩262,500.00
₩266,000.00
₩256,000.00
₩257,000.00
2026-08-27
₩261,500.00
+8500.00
+3.25%
₩287,537.48
₩270,000.00
₩271,000.00
₩262,500.00
₩266,000.00
2026-08-26
₩257,000.00
-500.00
-0.19%
₩278,485.38
₩256,500.00
₩266,500.00
₩255,500.00
₩261,500.00
2026-08-25
₩257,000.00
-8000.00
-3.11%
₩279,028.23
₩249,000.00
₩258,000.00
₩245,000.00
₩257,000.00
2026-08-24
₩281,500.00
-10000.00
-3.55%
₩287,992.99
₩271,500.00
₩272,000.00
₩255,000.00
₩257,000.00
2026-08-21
₩271,000.00
-4000.00
-1.48%
₩298,600.47
₩267,000.00
₩285,000.00
₩266,000.00
₩281,500.00
2026-08-20
₩247,500.00
+9500.00
+3.84%
₩303,073.89
₩257,000.00
₩273,000.00
₩252,500.00
₩271,000.00
2026-08-19
₩268,500.00
-17000.00
-6.33%
₩291,870.77
₩251,500.00
₩254,500.00
₩246,500.00
₩247,500.00
2026-08-18
₩274,500.00
+8500.00
+3.10%
₩311,599.61
₩283,000.00
₩288,000.00
₩265,000.00
₩268,500.00
2026-08-14
₩268,000.00
+7000.00
+2.61%
₩302,240.61
₩275,000.00
₩275,500.00
₩266,000.00
₩274,500.00
2026-08-13
₩255,500.00
+12000.00
+4.70%
₩294,547.21
₩267,500.00
₩271,000.00
₩262,500.00
₩268,000.00
2026-08-12
₩239,500.00
+4000.00
+1.67%
₩281,333.88
₩243,500.00
₩260,500.00
₩241,000.00
₩255,500.00
2026-08-11
₩230,000.00
-500.00
-0.22%
₩276,712.38
₩229,500.00
₩243,000.00
₩227,500.00
₩239,500.00
2026-08-10
₩231,000.00
+5000.00
+2.16%
₩277,315.23
₩236,000.00
₩238,500.00
₩228,500.00
₩230,000.00
2026-08-07
₩230,500.00
+4500.00
+1.95%
₩271,439.91
₩235,000.00
₩239,500.00
₩229,000.00
₩231,000.00
2026-08-06
₩246,000.00
-4500.00
-1.83%
₩266,242.13
₩241,500.00
₩246,000.00
₩228,000.00
₩230,500.00
2026-08-05
₩240,000.00
+14000.00
+5.83%
₩271,203.16
₩254,000.00
₩254,500.00
₩244,000.00
₩246,000.00
2026-08-04
₩239,500.00
+5000.00
+2.09%
₩256,254.95
₩244,500.00
₩244,500.00
₩228,000.00
₩240,000.00
2026-08-03
₩262,500.00
-14500.00
-5.52%
₩251,014.57
₩248,000.00
₩249,500.00
₩238,000.00
₩239,500.00
2026-07-31
₩207,000.00
+50000.00
+24.15%
₩265,690.82
₩257,000.00
₩267,000.00
₩243,000.00
₩262,500.00
2026-07-30
₩208,500.00
+5500.00
+2.64%
₩214,000.00
₩214,000.00
₩226,000.00
₩202,000.00
₩207,000.00
📈 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
₩208,500.00
₩265,690.82
+57190.82
+27.43%
2026-08
₩265,690.82
₩274,921.28
+9230.46
+3.47%
2026-09
₩274,921.28
₩289,460.92
+14539.64
+5.29%
2026-10
₩289,460.92
₩256,325.36
-33135.56
-11.45%
📅 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 (4,125 trading days), $1 invested
overnight-only would now be worth $80.56;
$1 invested intraday-only would be worth $0.23.
005930'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 005930, 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.