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
₩7,955.00
+30.00
+0.38%
₩7,915.64
₩7,985.00
₩8,020.00
₩7,965.00
₩7,970.00
2026-10-26
₩7,940.00
+10.00
+0.13%
₩7,885.90
₩7,950.00
₩7,980.00
₩7,930.00
₩7,955.00
2026-10-23
₩7,930.00
-5.00
-0.06%
₩7,875.98
₩7,925.00
₩7,940.00
₩7,910.00
₩7,940.00
2026-10-22
₩7,900.00
+0.00
+0.00%
₩7,880.95
₩7,900.00
₩8,000.00
₩7,900.00
₩7,930.00
2026-10-21
₩7,905.00
+5.00
+0.06%
₩7,880.95
₩7,910.00
₩7,980.00
₩7,880.00
₩7,900.00
2026-10-20
₩7,875.00
+0.00
+0.00%
₩7,875.97
₩7,875.00
₩7,960.00
₩7,840.00
₩7,905.00
2026-10-19
₩7,980.00
-65.00
-0.81%
₩7,875.97
₩7,915.00
₩7,960.00
₩7,765.00
₩7,875.00
2026-10-16
₩7,940.00
+10.00
+0.13%
₩7,940.65
₩7,950.00
₩8,010.00
₩7,940.00
₩7,980.00
2026-10-15
₩8,000.00
-50.00
-0.62%
₩7,930.66
₩7,950.00
₩8,000.00
₩7,900.00
₩7,940.00
2026-10-14
₩7,945.00
-15.00
-0.19%
₩7,980.54
₩7,930.00
₩8,005.00
₩7,930.00
₩8,000.00
2026-10-13
₩7,945.00
+0.00
+0.00%
₩7,995.64
₩7,945.00
₩7,950.00
₩7,915.00
₩7,945.00
2026-10-12
₩7,880.00
+20.00
+0.25%
₩7,995.64
₩7,900.00
₩7,960.00
₩7,900.00
₩7,945.00
2026-10-08
₩7,875.00
+15.00
+0.19%
₩7,975.39
₩7,890.00
₩7,910.00
₩7,865.00
₩7,880.00
2026-10-07
₩7,875.00
+0.00
+0.00%
₩7,960.23
₩7,875.00
₩7,905.00
₩7,855.00
₩7,875.00
2026-10-06
₩7,885.00
+5.00
+0.06%
₩7,960.23
₩7,890.00
₩7,890.00
₩7,847.00
₩7,875.00
2026-10-02
₩7,865.00
+25.00
+0.32%
₩7,955.19
₩7,890.00
₩7,915.00
₩7,875.00
₩7,885.00
2026-10-01
₩7,850.00
+0.00
+0.00%
₩7,929.98
₩7,850.00
₩7,895.00
₩7,840.00
₩7,865.00
2026-09-30
₩7,885.00
-5.00
-0.06%
₩7,929.98
₩7,880.00
₩7,880.00
₩7,830.00
₩7,850.00
2026-09-29
₩8,145.00
-165.00
-2.03%
₩7,935.01
₩7,980.00
₩7,980.00
₩7,850.00
₩7,885.00
2026-09-28
₩8,100.00
+0.00
+0.00%
₩8,099.08
₩8,100.00
₩8,150.00
₩8,045.00
₩8,145.00
2026-09-23
₩8,080.00
+20.00
+0.25%
₩8,099.08
₩8,100.00
₩8,120.00
₩8,000.00
₩8,100.00
2026-09-22
₩8,050.00
+120.00
+1.49%
₩8,079.08
₩8,170.00
₩8,170.00
₩8,050.00
₩8,080.00
2026-09-21
₩8,035.00
+0.00
+0.00%
₩7,960.42
₩8,035.00
₩8,085.00
₩8,035.00
₩8,050.00
2026-09-18
₩8,010.00
+110.00
+1.37%
₩7,960.42
₩8,120.00
₩8,120.00
₩7,960.00
₩8,035.00
2026-09-17
₩7,925.00
+75.00
+0.95%
₩7,852.58
₩8,000.00
₩8,010.00
₩7,935.00
₩8,010.00
2026-09-16
₩7,885.00
+45.00
+0.57%
₩7,778.96
₩7,930.00
₩7,935.00
₩7,885.00
₩7,925.00
2026-09-15
₩7,820.00
+5.00
+0.06%
₩7,734.82
₩7,825.00
₩7,915.00
₩7,825.00
₩7,885.00
2026-09-14
₩7,800.00
+10.00
+0.13%
₩7,729.88
₩7,810.00
₩7,830.00
₩7,785.00
₩7,820.00
2026-09-11
₩7,840.00
+0.00
+0.00%
₩7,719.98
₩7,840.00
₩7,855.00
₩7,780.00
₩7,800.00
2026-09-10
₩7,855.00
+0.00
+0.00%
₩7,719.98
₩7,855.00
₩7,855.00
₩7,815.00
₩7,840.00
2026-09-09
₩7,900.00
+0.00
+0.00%
₩7,719.98
₩7,900.00
₩7,900.00
₩7,840.00
₩7,855.00
2026-09-08
₩7,915.00
+0.00
+0.00%
₩7,719.98
₩7,915.00
₩7,945.00
₩7,890.00
₩7,900.00
2026-09-07
₩8,020.00
+0.00
+0.00%
₩7,719.98
₩8,020.00
₩8,020.00
₩7,900.00
₩7,915.00
2026-09-04
₩7,905.00
+180.00
+2.28%
₩7,719.98
₩8,085.00
₩8,085.00
₩8,010.00
₩8,020.00
2026-09-03
₩8,035.00
-30.00
-0.37%
₩7,548.11
₩8,005.00
₩8,005.00
₩7,900.00
₩7,905.00
2026-09-02
₩8,085.00
+0.00
+0.00%
₩7,576.40
₩8,085.00
₩8,085.00
₩8,035.00
₩8,035.00
2026-09-01
₩8,075.00
+70.00
+0.87%
₩7,576.40
₩8,145.00
₩8,145.00
₩8,065.00
₩8,085.00
2026-08-31
₩8,175.00
+0.00
+0.00%
₩7,511.28
₩8,175.00
₩8,175.00
₩8,050.00
₩8,075.00
2026-08-28
₩8,450.00
-190.00
-2.25%
₩7,511.28
₩8,260.00
₩8,260.00
₩8,140.00
₩8,175.00
2026-08-27
₩8,270.00
+20.00
+0.24%
₩7,684.06
₩8,290.00
₩8,450.00
₩8,275.00
₩8,450.00
2026-08-26
₩8,230.00
-5.00
-0.06%
₩7,665.52
₩8,225.00
₩8,280.00
₩8,170.00
₩8,270.00
2026-08-25
₩8,210.00
-5.00
-0.06%
₩7,670.18
₩8,205.00
₩8,235.00
₩8,170.00
₩8,230.00
2026-08-24
₩8,180.00
+0.00
+0.00%
₩7,674.86
₩8,180.00
₩8,255.00
₩8,180.00
₩8,210.00
2026-08-21
₩8,210.00
-30.00
-0.37%
₩7,674.86
₩8,180.00
₩8,190.00
₩8,145.00
₩8,180.00
2026-08-20
₩8,125.00
+40.00
+0.49%
₩7,703.00
₩8,165.00
₩8,240.00
₩8,155.00
₩8,210.00
2026-08-19
₩8,165.00
-75.00
-0.92%
₩7,665.27
₩8,090.00
₩8,155.00
₩8,090.00
₩8,125.00
2026-08-18
₩8,200.00
-5.00
-0.06%
₩7,736.33
₩8,195.00
₩8,195.00
₩8,145.00
₩8,165.00
2026-08-14
₩8,175.00
-15.00
-0.18%
₩7,741.05
₩8,160.00
₩8,205.00
₩8,160.00
₩8,200.00
2026-08-13
₩8,145.00
+0.00
+0.00%
₩7,755.28
₩8,145.00
₩8,177.00
₩8,135.00
₩8,175.00
2026-08-12
₩8,140.00
-35.00
-0.43%
₩7,755.28
₩8,105.00
₩8,170.00
₩8,105.00
₩8,145.00
2026-08-11
₩8,120.00
+5.00
+0.06%
₩7,788.77
₩8,125.00
₩8,155.00
₩8,115.00
₩8,140.00
2026-08-10
₩8,105.00
+5.00
+0.06%
₩7,783.98
₩8,110.00
₩8,130.00
₩8,105.00
₩8,120.00
2026-08-07
₩8,100.00
+50.00
+0.62%
₩7,779.18
₩8,150.00
₩8,150.00
₩8,095.00
₩8,105.00
2026-08-06
₩8,110.00
+0.00
+0.00%
₩7,731.45
₩8,110.00
₩8,115.00
₩8,065.00
₩8,100.00
2026-08-05
₩8,100.00
+150.00
+1.85%
₩7,731.45
₩8,250.00
₩8,255.00
₩8,085.00
₩8,110.00
2026-08-04
₩7,770.00
+180.00
+2.32%
₩7,590.88
₩7,950.00
₩8,145.00
₩7,950.00
₩8,100.00
2026-08-03
₩7,780.00
+0.00
+0.00%
₩7,419.01
₩7,780.00
₩7,790.00
₩7,750.00
₩7,770.00
2026-07-31
₩7,785.00
-385.00
-4.95%
₩7,419.01
₩7,400.00
₩7,785.00
₩7,300.00
₩7,780.00
2026-07-30
₩7,985.00
-180.00
-2.25%
₩7,805.00
₩7,805.00
₩7,915.00
₩7,745.00
₩7,785.00
📈 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
₩7,985.00
₩7,419.01
-565.99
-7.09%
2026-08
₩7,419.01
₩7,511.28
+92.27
+1.24%
2026-09
₩7,511.28
₩7,929.98
+418.70
+5.57%
2026-10
₩7,929.98
₩7,915.64
-14.34
-0.18%
📅 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 0040Y0, 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.