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
₩1,118,000.00
+49000.00
+4.38%
₩1,827,274.59
₩1,167,000.00
₩1,234,000.00
₩1,167,000.00
₩1,201,000.00
2026-10-26
₩1,122,000.00
-25000.00
-2.23%
₩1,750,550.98
₩1,097,000.00
₩1,142,000.00
₩1,092,000.00
₩1,118,000.00
2026-10-23
₩1,145,000.00
-50000.00
-4.37%
₩1,790,445.03
₩1,095,000.00
₩1,122,000.00
₩1,048,000.00
₩1,122,000.00
2026-10-22
₩1,168,000.00
+14000.00
+1.20%
₩1,872,200.51
₩1,182,000.00
₩1,234,000.00
₩1,135,000.00
₩1,145,000.00
2026-10-21
₩1,155,000.00
+27000.00
+2.34%
₩1,850,025.54
₩1,182,000.00
₩1,215,000.00
₩1,155,000.00
₩1,168,000.00
2026-10-20
₩1,170,000.00
-2000.00
-0.17%
₩1,807,766.08
₩1,168,000.00
₩1,206,000.00
₩1,128,000.00
₩1,155,000.00
2026-10-19
₩1,188,000.00
-78000.00
-6.57%
₩1,810,861.57
₩1,110,000.00
₩1,175,000.00
₩1,100,000.00
₩1,170,000.00
2026-10-16
₩1,163,000.00
+55000.00
+4.73%
₩1,938,111.30
₩1,218,000.00
₩1,222,000.00
₩1,154,000.00
₩1,188,000.00
2026-10-15
₩1,374,000.00
-131000.00
-9.53%
₩1,850,593.96
₩1,243,000.00
₩1,262,000.00
₩1,135,000.00
₩1,163,000.00
2026-10-14
₩1,363,000.00
+9000.00
+0.66%
₩2,045,628.40
₩1,372,000.00
₩1,414,000.00
₩1,348,000.00
₩1,374,000.00
2026-10-13
₩1,487,000.00
-67000.00
-4.51%
₩2,032,209.55
₩1,420,000.00
₩1,447,000.00
₩1,333,000.00
₩1,363,000.00
2026-10-12
₩1,546,000.00
+5000.00
+0.32%
₩2,128,095.50
₩1,551,000.00
₩1,583,000.00
₩1,476,000.00
₩1,487,000.00
2026-10-08
₩1,604,000.00
+8000.00
+0.50%
₩2,121,235.10
₩1,612,000.00
₩1,620,000.00
₩1,546,000.00
₩1,546,000.00
2026-10-07
₩1,675,000.00
+0.00
+0.00%
₩2,110,707.88
₩1,675,000.00
₩1,699,000.00
₩1,601,000.00
₩1,604,000.00
2026-10-06
₩1,581,000.00
+47000.00
+2.97%
₩2,110,707.88
₩1,628,000.00
₩1,685,000.00
₩1,616,000.00
₩1,675,000.00
2026-10-02
₩1,561,000.00
-16000.00
-1.02%
₩2,049,772.21
₩1,545,000.00
₩1,582,000.00
₩1,532,000.00
₩1,581,000.00
2026-10-01
₩1,513,000.00
-18000.00
-1.19%
₩2,070,999.62
₩1,495,000.00
₩1,563,000.00
₩1,462,000.00
₩1,561,000.00
2026-09-30
₩1,528,000.00
+32000.00
+2.09%
₩2,095,934.73
₩1,560,000.00
₩1,579,000.00
₩1,508,000.00
₩1,513,000.00
2026-09-29
₩1,499,000.00
+26000.00
+1.73%
₩2,052,941.20
₩1,525,000.00
₩1,560,000.00
₩1,493,000.00
₩1,528,000.00
2026-09-28
₩1,507,000.00
+45000.00
+2.99%
₩2,017,940.24
₩1,552,000.00
₩1,587,000.00
₩1,475,000.00
₩1,499,000.00
2026-09-23
₩1,486,000.00
+57000.00
+3.84%
₩1,959,430.37
₩1,543,000.00
₩1,544,000.00
₩1,472,000.00
₩1,507,000.00
2026-09-22
₩1,429,000.00
+62000.00
+4.34%
₩1,887,047.01
₩1,491,000.00
₩1,548,000.00
₩1,464,000.00
₩1,486,000.00
2026-09-21
₩1,388,000.00
+44000.00
+3.17%
₩1,808,578.25
₩1,432,000.00
₩1,443,000.00
₩1,396,000.00
₩1,429,000.00
2026-09-18
₩1,330,000.00
+64000.00
+4.81%
₩1,753,007.41
₩1,394,000.00
₩1,409,000.00
₩1,388,000.00
₩1,388,000.00
2026-09-17
₩1,381,000.00
+7000.00
+0.51%
₩1,672,525.01
₩1,388,000.00
₩1,410,000.00
₩1,330,000.00
₩1,330,000.00
2026-09-16
₩1,317,000.00
-7000.00
-0.53%
₩1,664,090.08
₩1,310,000.00
₩1,383,000.00
₩1,305,000.00
₩1,381,000.00
2026-09-15
₩1,337,000.00
-26000.00
-1.94%
₩1,672,982.17
₩1,311,000.00
₩1,354,000.00
₩1,307,000.00
₩1,317,000.00
2026-09-14
₩1,400,000.00
-45000.00
-3.21%
₩1,706,161.06
₩1,355,000.00
₩1,360,000.00
₩1,318,000.00
₩1,337,000.00
2026-09-11
₩1,400,000.00
-40000.00
-2.86%
₩1,762,823.24
₩1,360,000.00
₩1,427,000.00
₩1,356,000.00
₩1,400,000.00
2026-09-10
₩1,404,000.00
-14000.00
-1.00%
₩1,814,670.98
₩1,390,000.00
₩1,403,000.00
₩1,348,000.00
₩1,400,000.00
2026-09-09
₩1,370,000.00
+25000.00
+1.82%
₩1,832,948.24
₩1,395,000.00
₩1,428,000.00
₩1,389,000.00
₩1,404,000.00
2026-09-08
₩1,454,000.00
+2000.00
+0.14%
₩1,800,099.71
₩1,456,000.00
₩1,464,000.00
₩1,369,000.00
₩1,370,000.00
2026-09-07
₩1,401,000.00
+49000.00
+3.50%
₩1,797,627.04
₩1,450,000.00
₩1,464,000.00
₩1,410,000.00
₩1,454,000.00
2026-09-04
₩1,348,000.00
+19000.00
+1.41%
₩1,736,879.65
₩1,367,000.00
₩1,418,000.00
₩1,351,000.00
₩1,401,000.00
2026-09-03
₩1,400,000.00
+32000.00
+2.29%
₩1,712,738.67
₩1,432,000.00
₩1,449,000.00
₩1,312,000.00
₩1,348,000.00
2026-09-02
₩1,430,000.00
-49000.00
-3.43%
₩1,674,465.18
₩1,381,000.00
₩1,438,000.00
₩1,369,000.00
₩1,400,000.00
2026-09-01
₩1,458,000.00
-18000.00
-1.23%
₩1,733,877.78
₩1,440,000.00
₩1,475,000.00
₩1,408,000.00
₩1,430,000.00
2026-08-31
₩1,421,000.00
-51000.00
-3.59%
₩1,755,551.25
₩1,370,000.00
₩1,461,000.00
₩1,331,000.00
₩1,458,000.00
2026-08-28
₩1,385,000.00
+13000.00
+0.94%
₩1,820,903.89
₩1,398,000.00
₩1,460,000.00
₩1,393,000.00
₩1,421,000.00
2026-08-27
₩1,330,000.00
+61000.00
+4.59%
₩1,803,971.31
₩1,391,000.00
₩1,398,000.00
₩1,336,000.00
₩1,385,000.00
2026-08-26
₩1,362,000.00
-20000.00
-1.47%
₩1,724,861.13
₩1,342,000.00
₩1,357,000.00
₩1,303,000.00
₩1,330,000.00
2026-08-25
₩1,318,000.00
-46000.00
-3.49%
₩1,750,566.96
₩1,272,000.00
₩1,362,000.00
₩1,222,000.00
₩1,362,000.00
2026-08-24
₩1,316,000.00
+0.00
+0.00%
₩1,813,873.63
₩1,316,000.00
₩1,343,000.00
₩1,292,000.00
₩1,318,000.00
2026-08-21
₩1,396,000.00
-51000.00
-3.65%
₩1,813,873.63
₩1,345,000.00
₩1,348,000.00
₩1,306,000.00
₩1,316,000.00
2026-08-20
₩1,387,000.00
+14000.00
+1.01%
₩1,882,652.48
₩1,401,000.00
₩1,421,000.00
₩1,335,000.00
₩1,396,000.00
2026-08-19
₩1,440,000.00
-83000.00
-5.76%
₩1,863,839.39
₩1,357,000.00
₩1,431,000.00
₩1,350,000.00
₩1,387,000.00
2026-08-18
₩1,558,000.00
+16000.00
+1.03%
₩1,977,839.89
₩1,574,000.00
₩1,595,000.00
₩1,422,000.00
₩1,440,000.00
2026-08-14
₩1,503,000.00
+90000.00
+5.99%
₩1,957,734.78
₩1,593,000.00
₩1,600,000.00
₩1,511,000.00
₩1,558,000.00
2026-08-13
₩1,335,000.00
+97000.00
+7.27%
₩1,847,128.30
₩1,432,000.00
₩1,548,000.00
₩1,412,000.00
₩1,503,000.00
2026-08-12
₩1,262,000.00
+26000.00
+2.06%
₩1,722,008.57
₩1,288,000.00
₩1,350,000.00
₩1,275,000.00
₩1,335,000.00
2026-08-11
₩1,274,000.00
-36000.00
-2.83%
₩1,687,247.53
₩1,238,000.00
₩1,297,000.00
₩1,191,000.00
₩1,262,000.00
2026-08-10
₩1,278,000.00
+37000.00
+2.90%
₩1,736,311.27
₩1,315,000.00
₩1,357,000.00
₩1,250,000.00
₩1,274,000.00
2026-08-07
₩1,229,000.00
+30000.00
+2.44%
₩1,687,456.88
₩1,259,000.00
₩1,304,000.00
₩1,233,000.00
₩1,278,000.00
2026-08-06
₩1,356,000.00
-43000.00
-3.17%
₩1,647,247.43
₩1,313,000.00
₩1,320,000.00
₩1,202,000.00
₩1,229,000.00
2026-08-05
₩1,185,000.00
+166000.00
+14.01%
₩1,701,193.84
₩1,351,000.00
₩1,370,000.00
₩1,290,000.00
₩1,356,000.00
2026-08-04
₩1,181,000.00
+97000.00
+8.21%
₩1,492,164.84
₩1,278,000.00
₩1,279,000.00
₩1,112,000.00
₩1,185,000.00
2026-08-03
₩1,142,000.00
+79000.00
+6.92%
₩1,378,909.76
₩1,221,000.00
₩1,260,000.00
₩1,155,000.00
₩1,181,000.00
2026-07-31
₩879,000.00
+249000.00
+28.33%
₩1,289,692.83
₩1,128,000.00
₩1,142,000.00
₩1,024,000.00
₩1,142,000.00
2026-07-30
₩1,029,000.00
-24000.00
-2.33%
₩1,005,000.00
₩1,005,000.00
₩1,075,000.00
₩865,000.00
₩879,000.00
📈 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
₩1,029,000.00
₩1,289,692.83
+260692.83
+25.33%
2026-08
₩1,289,692.83
₩1,755,551.25
+465858.42
+36.12%
2026-09
₩1,755,551.25
₩2,095,934.73
+340383.48
+19.39%
2026-10
₩2,095,934.73
₩1,827,274.59
-268660.15
-12.82%
📅 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 (4,128 trading days), $1 invested
overnight-only would now be worth $3,178.25;
$1 invested intraday-only would be worth $0.00.
009150'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 009150, 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.