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
₩4,900.00
+215.00
+4.39%
₩3,255.46
₩5,115.00
₩5,450.00
₩5,040.00
₩5,095.00
2026-10-26
₩5,255.00
-175.00
-3.33%
₩3,118.62
₩5,080.00
₩5,185.00
₩4,900.00
₩4,900.00
2026-10-23
₩5,510.00
-230.00
-4.17%
₩3,226.06
₩5,280.00
₩5,355.00
₩5,010.00
₩5,255.00
2026-10-22
₩6,045.00
-70.00
-1.16%
₩3,366.59
₩5,975.00
₩6,025.00
₩5,495.00
₩5,510.00
2026-10-21
₩5,880.00
+185.00
+3.15%
₩3,406.03
₩6,065.00
₩6,265.00
₩5,920.00
₩6,045.00
2026-10-20
₩6,435.00
-190.00
-2.95%
₩3,302.13
₩6,245.00
₩6,360.00
₩5,700.00
₩5,880.00
2026-10-19
₩6,095.00
-305.00
-5.00%
₩3,402.60
₩5,790.00
₩6,435.00
₩5,740.00
₩6,435.00
2026-10-16
₩5,580.00
+110.00
+1.97%
₩3,581.84
₩5,690.00
₩6,360.00
₩5,580.00
₩6,095.00
2026-10-15
₩6,700.00
-620.00
-9.25%
₩3,512.59
₩6,080.00
₩6,120.00
₩5,315.00
₩5,580.00
2026-10-14
₩7,000.00
-65.00
-0.93%
₩3,870.79
₩6,935.00
₩7,075.00
₩6,500.00
₩6,700.00
2026-10-13
₩7,175.00
-415.00
-5.78%
₩3,907.07
₩6,760.00
₩7,055.00
₩6,320.00
₩7,000.00
2026-10-12
₩8,000.00
-100.00
-1.25%
₩4,146.92
₩7,900.00
₩8,017.00
₩7,150.00
₩7,175.00
2026-10-08
₩8,180.00
-70.00
-0.86%
₩4,199.41
₩8,110.00
₩8,270.00
₩7,805.00
₩8,000.00
2026-10-07
₩8,710.00
-20.00
-0.23%
₩4,235.66
₩8,690.00
₩8,780.00
₩8,175.00
₩8,180.00
2026-10-06
₩8,035.00
+215.00
+2.68%
₩4,245.41
₩8,250.00
₩8,710.00
₩8,240.00
₩8,710.00
2026-10-02
₩8,150.00
-25.00
-0.31%
₩4,134.77
₩8,125.00
₩8,360.00
₩7,915.00
₩8,035.00
2026-10-01
₩7,295.00
-95.00
-1.30%
₩4,147.49
₩7,200.00
₩8,150.00
₩7,140.00
₩8,150.00
2026-09-30
₩7,130.00
+60.00
+0.84%
₩4,202.22
₩7,190.00
₩7,395.00
₩7,115.00
₩7,295.00
2026-09-29
₩6,960.00
+20.00
+0.29%
₩4,167.15
₩6,980.00
₩7,130.00
₩6,745.00
₩7,130.00
2026-09-28
₩6,980.00
+105.00
+1.50%
₩4,155.21
₩7,085.00
₩7,310.00
₩6,920.00
₩6,960.00
2026-09-23
₩6,775.00
+140.00
+2.07%
₩4,093.63
₩6,915.00
₩7,025.00
₩6,780.00
₩6,980.00
2026-09-22
₩6,905.00
+175.00
+2.53%
₩4,010.75
₩7,080.00
₩7,110.00
₩6,740.00
₩6,775.00
2026-09-21
₩6,695.00
+45.00
+0.67%
₩3,911.62
₩6,740.00
₩6,945.00
₩6,605.00
₩6,905.00
2026-09-18
₩6,660.00
+195.00
+2.93%
₩3,885.50
₩6,855.00
₩6,870.00
₩6,645.00
₩6,695.00
2026-09-17
₩6,625.00
+60.00
+0.91%
₩3,774.97
₩6,685.00
₩6,750.00
₩6,555.00
₩6,660.00
2026-09-16
₩6,555.00
-55.00
-0.84%
₩3,741.09
₩6,500.00
₩6,625.00
₩6,275.00
₩6,625.00
2026-09-15
₩6,450.00
-50.00
-0.78%
₩3,772.74
₩6,400.00
₩6,800.00
₩6,335.00
₩6,555.00
2026-09-14
₩6,720.00
-350.00
-5.21%
₩3,802.22
₩6,370.00
₩6,590.00
₩6,235.00
₩6,450.00
2026-09-11
₩7,230.00
-525.00
-7.26%
₩4,011.13
₩6,705.00
₩6,870.00
₩6,630.00
₩6,720.00
2026-09-10
₩6,965.00
-215.00
-3.09%
₩4,325.20
₩6,750.00
₩7,230.00
₩6,630.00
₩7,230.00
2026-09-09
₩6,570.00
-20.00
-0.30%
₩4,462.97
₩6,550.00
₩7,000.00
₩6,535.00
₩6,965.00
2026-09-08
₩6,900.00
+0.00
+0.00%
₩4,476.60
₩6,900.00
₩7,020.00
₩6,570.00
₩6,570.00
2026-09-07
₩6,725.00
+175.00
+2.60%
₩4,476.60
₩6,900.00
₩7,015.00
₩6,815.00
₩6,900.00
2026-09-04
₩6,220.00
+225.00
+3.62%
₩4,363.06
₩6,445.00
₩6,780.00
₩6,410.00
₩6,725.00
2026-09-03
₩6,540.00
+195.00
+2.98%
₩4,210.74
₩6,735.00
₩6,800.00
₩6,130.00
₩6,220.00
2026-09-02
₩6,855.00
-410.00
-5.98%
₩4,088.83
₩6,445.00
₩6,875.00
₩6,350.00
₩6,540.00
2026-09-01
₩7,260.00
-180.00
-2.48%
₩4,348.94
₩7,080.00
₩7,260.00
₩6,775.00
₩6,855.00
2026-08-31
₩7,395.00
-370.00
-5.00%
₩4,459.50
₩7,025.00
₩7,280.00
₩6,680.00
₩7,260.00
2026-08-28
₩7,440.00
-150.00
-2.02%
₩4,694.38
₩7,290.00
₩7,490.00
₩7,210.00
₩7,395.00
2026-08-27
₩7,105.00
+5.00
+0.07%
₩4,790.97
₩7,110.00
₩7,440.00
₩7,035.00
₩7,440.00
2026-08-26
₩7,220.00
-65.00
-0.90%
₩4,787.61
₩7,155.00
₩7,310.00
₩6,920.00
₩7,105.00
2026-08-25
₩7,010.00
-210.00
-3.00%
₩4,831.10
₩6,800.00
₩7,220.00
₩6,330.00
₩7,220.00
2026-08-24
₩6,745.00
+0.00
+0.00%
₩4,980.29
₩6,745.00
₩7,185.00
₩6,700.00
₩7,010.00
2026-08-21
₩7,580.00
-395.00
-5.21%
₩4,980.29
₩7,185.00
₩7,190.00
₩6,600.00
₩6,745.00
2026-08-20
₩7,190.00
+475.00
+6.61%
₩5,254.09
₩7,665.00
₩7,775.00
₩7,380.00
₩7,580.00
2026-08-19
₩7,155.00
-440.00
-6.15%
₩4,928.49
₩6,715.00
₩7,460.00
₩6,570.00
₩7,190.00
2026-08-18
₩7,815.00
+0.00
+0.00%
₩5,251.43
₩7,815.00
₩8,080.00
₩7,085.00
₩7,155.00
2026-08-14
₩7,810.00
+75.00
+0.96%
₩5,251.43
₩7,885.00
₩8,225.00
₩7,380.00
₩7,815.00
2026-08-13
₩7,680.00
+25.00
+0.33%
₩5,201.48
₩7,705.00
₩7,980.00
₩7,515.00
₩7,810.00
2026-08-12
₩7,750.00
-90.00
-1.16%
₩5,184.61
₩7,660.00
₩7,775.00
₩7,270.00
₩7,680.00
2026-08-11
₩7,750.00
-145.00
-1.87%
₩5,245.52
₩7,605.00
₩8,200.00
₩7,380.00
₩7,750.00
2026-08-10
₩6,650.00
+160.00
+2.41%
₩5,345.53
₩6,810.00
₩7,780.00
₩6,745.00
₩7,750.00
2026-08-07
₩6,615.00
+115.00
+1.74%
₩5,219.94
₩6,730.00
₩6,985.00
₩6,115.00
₩6,650.00
2026-08-06
₩6,540.00
+20.00
+0.31%
₩5,130.75
₩6,560.00
₩6,965.00
₩6,175.00
₩6,615.00
2026-08-05
₩6,345.00
+315.00
+4.96%
₩5,115.10
₩6,660.00
₩6,700.00
₩6,270.00
₩6,540.00
2026-08-04
₩5,600.00
+145.00
+2.59%
₩4,873.17
₩5,745.00
₩6,400.00
₩5,735.00
₩6,345.00
2026-08-03
₩5,220.00
-280.00
-5.36%
₩4,750.18
₩4,940.00
₩5,955.00
₩4,900.00
₩5,600.00
2026-07-31
₩4,120.00
+580.00
+14.08%
₩5,019.42
₩4,700.00
₩5,445.00
₩4,615.00
₩5,220.00
2026-07-30
₩4,605.00
-205.00
-4.45%
₩4,400.00
₩4,400.00
₩4,800.00
₩4,120.00
₩4,120.00
📈 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
₩4,605.00
₩5,019.42
+414.42
+9.00%
2026-08
₩5,019.42
₩4,459.50
-559.91
-11.15%
2026-09
₩4,459.50
₩4,202.22
-257.29
-5.77%
2026-10
₩4,202.22
₩3,255.46
-946.76
-22.53%
📅 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 2015-12-17 to 2026-10-23 (2,646 trading days), $1 invested
overnight-only would now be worth $4.71;
$1 invested intraday-only would be worth $0.11.
233740'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 233740, 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.