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
₩5,560.00
-180.00
-3.24%
₩4,273.65
₩5,380.00
₩5,640.00
₩5,270.00
₩5,390.00
2026-10-26
₩5,490.00
+760.00
+13.84%
₩4,416.63
₩6,250.00
₩6,340.00
₩5,470.00
₩5,560.00
2026-10-23
₩4,230.00
+125.00
+2.96%
₩3,879.57
₩4,355.00
₩5,490.00
₩4,210.00
₩5,490.00
2026-10-22
₩4,400.00
+10.00
+0.23%
₩3,768.22
₩4,410.00
₩4,465.00
₩4,140.00
₩4,230.00
2026-10-21
₩4,350.00
+30.00
+0.69%
₩3,759.67
₩4,380.00
₩4,420.00
₩4,275.00
₩4,400.00
2026-10-20
₩4,410.00
+0.00
+0.00%
₩3,733.92
₩4,410.00
₩4,415.00
₩4,290.00
₩4,350.00
2026-10-19
₩4,230.00
-45.00
-1.06%
₩3,733.92
₩4,185.00
₩4,430.00
₩4,155.00
₩4,410.00
2026-10-16
₩4,300.00
-50.00
-1.16%
₩3,774.07
₩4,250.00
₩4,305.00
₩4,160.00
₩4,230.00
2026-10-15
₩4,390.00
-5.00
-0.11%
₩3,818.47
₩4,385.00
₩4,385.00
₩4,135.00
₩4,300.00
2026-10-14
₩4,340.00
+5.00
+0.12%
₩3,822.82
₩4,345.00
₩4,515.00
₩4,340.00
₩4,390.00
2026-10-13
₩4,240.00
-5.00
-0.12%
₩3,818.43
₩4,235.00
₩4,345.00
₩4,185.00
₩4,340.00
2026-10-12
₩4,295.00
-15.00
-0.35%
₩3,822.93
₩4,280.00
₩4,400.00
₩4,230.00
₩4,240.00
2026-10-08
₩4,185.00
-55.00
-1.31%
₩3,836.33
₩4,130.00
₩4,305.00
₩4,100.00
₩4,295.00
2026-10-07
₩3,960.00
-35.00
-0.88%
₩3,887.42
₩3,925.00
₩4,550.00
₩3,925.00
₩4,185.00
2026-10-06
₩4,135.00
+15.00
+0.36%
₩3,922.09
₩4,150.00
₩4,155.00
₩3,950.00
₩3,960.00
2026-10-02
₩4,175.00
-10.00
-0.24%
₩3,907.91
₩4,165.00
₩4,170.00
₩4,115.00
₩4,135.00
2026-10-01
₩4,400.00
-40.00
-0.91%
₩3,917.29
₩4,360.00
₩4,360.00
₩4,070.00
₩4,175.00
2026-09-30
₩4,430.00
-10.00
-0.23%
₩3,953.23
₩4,420.00
₩4,465.00
₩4,340.00
₩4,400.00
2026-09-29
₩4,385.00
+0.00
+0.00%
₩3,962.17
₩4,385.00
₩4,440.00
₩4,290.00
₩4,430.00
2026-09-28
₩4,285.00
+15.00
+0.35%
₩3,962.17
₩4,300.00
₩4,470.00
₩4,250.00
₩4,385.00
2026-09-23
₩4,250.00
+55.00
+1.29%
₩3,948.35
₩4,305.00
₩4,350.00
₩4,200.00
₩4,285.00
2026-09-22
₩4,305.00
+0.00
+0.00%
₩3,897.91
₩4,305.00
₩4,360.00
₩4,250.00
₩4,250.00
2026-09-21
₩4,390.00
+10.00
+0.23%
₩3,897.91
₩4,400.00
₩4,460.00
₩4,300.00
₩4,305.00
2026-09-18
₩4,525.00
-60.00
-1.33%
₩3,889.05
₩4,465.00
₩4,495.00
₩4,350.00
₩4,390.00
2026-09-17
₩4,035.00
+85.00
+2.11%
₩3,941.31
₩4,120.00
₩4,625.00
₩4,110.00
₩4,525.00
2026-09-16
₩3,915.00
+25.00
+0.64%
₩3,860.00
₩3,940.00
₩4,070.00
₩3,935.00
₩4,035.00
2026-09-15
₩3,915.00
+0.00
+0.00%
₩3,835.51
₩3,915.00
₩3,935.00
₩3,875.00
₩3,915.00
2026-09-14
₩3,935.00
-15.00
-0.38%
₩3,835.51
₩3,920.00
₩3,935.00
₩3,870.00
₩3,915.00
2026-09-11
₩3,930.00
-20.00
-0.51%
₩3,850.18
₩3,910.00
₩3,945.00
₩3,850.00
₩3,935.00
2026-09-10
₩3,900.00
+10.00
+0.26%
₩3,869.88
₩3,910.00
₩3,945.00
₩3,860.00
₩3,930.00
2026-09-09
₩3,865.00
-5.00
-0.13%
₩3,859.98
₩3,860.00
₩3,920.00
₩3,845.00
₩3,900.00
2026-09-08
₩3,880.00
-5.00
-0.13%
₩3,864.98
₩3,875.00
₩3,915.00
₩3,845.00
₩3,865.00
2026-09-07
₩3,900.00
+15.00
+0.38%
₩3,869.97
₩3,915.00
₩3,940.00
₩3,875.00
₩3,880.00
2026-09-04
₩3,835.00
+15.00
+0.39%
₩3,855.14
₩3,850.00
₩3,900.00
₩3,850.00
₩3,900.00
2026-09-03
₩3,885.00
+0.00
+0.00%
₩3,840.12
₩3,885.00
₩3,905.00
₩3,830.00
₩3,835.00
2026-09-02
₩3,915.00
-60.00
-1.53%
₩3,840.12
₩3,855.00
₩3,915.00
₩3,830.00
₩3,885.00
2026-09-01
₩3,895.00
+0.00
+0.00%
₩3,899.89
₩3,895.00
₩3,915.00
₩3,850.00
₩3,915.00
2026-08-31
₩3,905.00
+15.00
+0.38%
₩3,899.89
₩3,920.00
₩3,920.00
₩3,840.00
₩3,895.00
2026-08-28
₩3,840.00
-20.00
-0.52%
₩3,884.96
₩3,820.00
₩3,960.00
₩3,805.00
₩3,905.00
2026-08-27
₩3,770.00
+30.00
+0.80%
₩3,905.30
₩3,800.00
₩3,840.00
₩3,760.00
₩3,840.00
2026-08-26
₩3,810.00
+275.00
+7.22%
₩3,874.47
₩4,085.00
₩4,445.00
₩3,740.00
₩3,770.00
2026-08-25
₩3,780.00
+0.00
+0.00%
₩3,613.65
₩3,780.00
₩3,825.00
₩3,720.00
₩3,810.00
2026-08-24
₩3,825.00
-15.00
-0.39%
₩3,613.65
₩3,810.00
₩3,815.00
₩3,725.00
₩3,780.00
2026-08-21
₩3,885.00
-30.00
-0.77%
₩3,627.87
₩3,855.00
₩3,885.00
₩3,785.00
₩3,825.00
2026-08-20
₩3,770.00
+0.00
+0.00%
₩3,656.10
₩3,770.00
₩3,885.00
₩3,770.00
₩3,885.00
2026-08-19
₩3,860.00
-65.00
-1.68%
₩3,656.10
₩3,795.00
₩3,815.00
₩3,750.00
₩3,770.00
2026-08-18
₩3,890.00
-30.00
-0.77%
₩3,718.73
₩3,860.00
₩3,880.00
₩3,800.00
₩3,860.00
2026-08-14
₩3,900.00
+0.00
+0.00%
₩3,747.63
₩3,900.00
₩3,920.00
₩3,800.00
₩3,890.00
2026-08-13
₩3,955.00
-5.00
-0.13%
₩3,747.63
₩3,950.00
₩3,990.00
₩3,865.00
₩3,900.00
2026-08-12
₩3,955.00
-20.00
-0.51%
₩3,752.37
₩3,935.00
₩3,975.00
₩3,920.00
₩3,955.00
2026-08-11
₩3,910.00
+35.00
+0.90%
₩3,771.44
₩3,945.00
₩3,980.00
₩3,915.00
₩3,955.00
2026-08-10
₩3,815.00
+35.00
+0.92%
₩3,737.98
₩3,850.00
₩3,915.00
₩3,835.00
₩3,910.00
2026-08-07
₩3,795.00
+0.00
+0.00%
₩3,704.00
₩3,795.00
₩3,850.00
₩3,785.00
₩3,815.00
2026-08-06
₩3,850.00
-35.00
-0.91%
₩3,704.00
₩3,815.00
₩3,845.00
₩3,745.00
₩3,795.00
2026-08-05
₩3,805.00
+10.00
+0.26%
₩3,737.98
₩3,815.00
₩3,890.00
₩3,805.00
₩3,850.00
2026-08-04
₩3,715.00
+20.00
+0.54%
₩3,728.18
₩3,735.00
₩3,810.00
₩3,685.00
₩3,805.00
2026-08-03
₩3,780.00
+0.00
+0.00%
₩3,708.22
₩3,780.00
₩3,850.00
₩3,675.00
₩3,715.00
2026-07-31
₩3,795.00
+50.00
+1.32%
₩3,708.22
₩3,845.00
₩3,870.00
₩3,700.00
₩3,780.00
2026-07-30
₩3,810.00
-150.00
-3.94%
₩3,660.00
₩3,660.00
₩3,830.00
₩3,660.00
₩3,795.00
📈 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
₩3,810.00
₩3,708.22
-101.78
-2.67%
2026-08
₩3,708.22
₩3,899.89
+191.67
+5.17%
2026-09
₩3,899.89
₩3,953.23
+53.34
+1.37%
2026-10
₩3,953.23
₩4,273.65
+320.42
+8.11%
📅 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
Not enough historical data yet for this ticker to compute an overnight/intraday split.
🎯 Best Strategy Backtest
See which saved strategy has the best real backtested win-rate on 003780, 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.