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
₩86,250.00
+2980.00
+3.46%
₩90,768.05
₩89,230.00
₩91,105.00
₩88,970.00
₩89,240.00
2026-10-26
₩87,465.00
-770.00
-0.88%
₩87,736.69
₩86,695.00
₩87,905.00
₩86,050.00
₩86,250.00
2026-10-23
₩86,980.00
-1990.00
-2.29%
₩88,515.94
₩84,990.00
₩87,465.00
₩83,410.00
₩87,465.00
2026-10-22
₩90,055.00
-985.00
-1.09%
₩90,588.50
₩89,070.00
₩90,470.00
₩86,135.00
₩86,980.00
2026-10-21
₩87,135.00
+1825.00
+2.09%
₩91,590.29
₩88,960.00
₩91,730.00
₩88,450.00
₩90,055.00
2026-10-20
₩90,235.00
-710.00
-0.79%
₩89,711.33
₩89,525.00
₩89,705.00
₩85,990.00
₩87,135.00
2026-10-19
₩89,060.00
-2820.00
-3.17%
₩90,422.81
₩86,240.00
₩90,235.00
₩86,210.00
₩90,235.00
2026-10-16
₩87,275.00
+1715.00
+1.97%
₩93,379.58
₩88,990.00
₩91,430.00
₩87,855.00
₩89,060.00
2026-10-15
₩95,070.00
-5400.00
-5.68%
₩91,579.99
₩89,670.00
₩90,940.00
₩85,855.00
₩87,275.00
2026-10-14
₩95,610.00
+420.00
+0.44%
₩97,095.01
₩96,030.00
₩98,195.00
₩94,000.00
₩95,070.00
2026-10-13
₩101,890.00
-3170.00
-3.11%
₩96,670.35
₩98,720.00
₩99,095.00
₩93,925.00
₩95,610.00
2026-10-12
₩105,915.00
-1010.00
-0.95%
₩99,774.53
₩104,905.00
₩105,290.00
₩101,575.00
₩101,890.00
2026-10-08
₩108,885.00
-130.00
-0.12%
₩100,735.14
₩108,755.00
₩108,970.00
₩105,915.00
₩105,915.00
2026-10-07
₩111,055.00
-1215.00
-1.09%
₩100,855.55
₩109,840.00
₩111,905.00
₩108,820.00
₩108,885.00
2026-10-06
₩112,235.00
+710.00
+0.63%
₩101,971.17
₩112,945.00
₩112,945.00
₩110,315.00
₩111,055.00
2026-10-02
₩111,810.00
-545.00
-0.49%
₩101,330.15
₩111,265.00
₩112,540.00
₩110,910.00
₩112,235.00
2026-10-01
₩109,900.00
-860.00
-0.78%
₩101,826.49
₩109,040.00
₩111,810.00
₩108,155.00
₩111,810.00
2026-09-30
₩110,265.00
+1085.00
+0.98%
₩102,629.60
₩111,350.00
₩111,845.00
₩109,205.00
₩109,900.00
2026-09-29
₩109,805.00
-205.00
-0.19%
₩101,629.57
₩109,600.00
₩110,760.00
₩108,772.00
₩110,265.00
2026-09-28
₩113,360.00
-400.00
-0.35%
₩101,819.66
₩112,960.00
₩113,150.00
₩109,805.00
₩109,805.00
2026-09-23
₩112,180.00
+2475.00
+2.21%
₩102,180.21
₩114,655.00
₩114,670.00
₩112,230.00
₩113,360.00
2026-09-22
₩111,945.00
+2500.00
+2.23%
₩99,974.50
₩114,445.00
₩114,930.00
₩111,670.00
₩112,180.00
2026-09-21
₩109,560.00
+790.00
+0.72%
₩97,790.60
₩110,350.00
₩112,405.00
₩110,330.00
₩111,945.00
2026-09-18
₩106,520.00
+2880.00
+2.70%
₩97,090.51
₩109,400.00
₩110,155.00
₩108,550.00
₩109,560.00
2026-09-17
₩106,600.00
+970.00
+0.91%
₩94,534.57
₩107,570.00
₩108,157.00
₩106,235.00
₩106,520.00
2026-09-16
₩104,650.00
-40.00
-0.04%
₩93,682.11
₩104,610.00
₩106,640.00
₩104,290.00
₩106,600.00
2026-09-15
₩105,825.00
-730.00
-0.69%
₩93,717.93
₩105,095.00
₩106,415.00
₩104,045.00
₩104,650.00
2026-09-14
₩109,735.00
-3825.00
-3.49%
₩94,368.91
₩105,910.00
₩107,395.00
₩105,230.00
₩105,825.00
2026-09-11
₩112,150.00
-4165.00
-3.71%
₩97,777.09
₩107,985.00
₩110,455.00
₩107,840.00
₩109,735.00
2026-09-10
₩112,400.00
-70.00
-0.06%
₩101,548.37
₩112,330.00
₩112,665.00
₩109,630.00
₩112,150.00
2026-09-09
₩110,660.00
+305.00
+0.28%
₩101,611.65
₩110,965.00
₩113,535.00
₩110,825.00
₩112,400.00
2026-09-08
₩111,030.00
+990.00
+0.89%
₩101,332.36
₩112,020.00
₩114,535.00
₩110,580.00
₩110,660.00
2026-09-07
₩105,880.00
+3925.00
+3.71%
₩100,436.82
₩109,805.00
₩111,120.00
₩109,065.00
₩111,030.00
2026-09-04
₩103,860.00
+1385.00
+1.33%
₩96,846.69
₩105,245.00
₩107,010.00
₩104,925.00
₩105,880.00
2026-09-03
₩103,655.00
+1445.00
+1.39%
₩95,572.21
₩105,100.00
₩105,790.00
₩101,485.00
₩103,860.00
2026-09-02
₩108,170.00
-3305.00
-3.06%
₩94,258.20
₩104,865.00
₩105,905.00
₩103,655.00
₩103,655.00
2026-09-01
₩107,875.00
-930.00
-0.86%
₩97,228.91
₩106,945.00
₩108,690.00
₩106,345.00
₩108,170.00
2026-08-31
₩107,525.00
-2905.00
-2.70%
₩98,074.42
₩104,620.00
₩107,875.00
₩103,220.00
₩107,875.00
2026-08-28
₩109,395.00
-970.00
-0.89%
₩100,797.67
₩108,425.00
₩109,535.00
₩107,285.00
₩107,525.00
2026-08-27
₩107,990.00
+3365.00
+3.12%
₩101,699.43
₩111,355.00
₩111,355.00
₩108,490.00
₩109,395.00
2026-08-26
₩106,940.00
-335.00
-0.31%
₩98,626.21
₩106,605.00
₩109,390.00
₩106,100.00
₩107,990.00
2026-08-25
₩106,215.00
-3045.00
-2.87%
₩98,936.14
₩103,170.00
₩106,940.00
₩101,325.00
₩106,940.00
2026-08-24
₩110,225.00
-495.00
-0.45%
₩101,856.18
₩109,730.00
₩110,125.00
₩105,525.00
₩106,215.00
2026-08-21
₩108,435.00
-1435.00
-1.32%
₩102,315.66
₩107,000.00
₩111,110.00
₩106,730.00
₩110,225.00
2026-08-20
₩101,995.00
+3275.00
+3.21%
₩103,687.83
₩105,270.00
₩109,595.00
₩103,855.00
₩108,435.00
2026-08-19
₩108,735.00
-5920.00
-5.44%
₩100,462.05
₩102,815.00
₩104,275.00
₩100,885.00
₩101,995.00
2026-08-18
₩110,375.00
+2900.00
+2.63%
₩106,246.57
₩113,275.00
₩115,020.00
₩107,485.00
₩108,735.00
2026-08-14
₩107,530.00
+2985.00
+2.78%
₩103,526.51
₩110,515.00
₩111,095.00
₩108,430.00
₩110,375.00
2026-08-13
₩103,460.00
+3560.00
+3.44%
₩100,730.27
₩107,020.00
₩109,165.00
₩106,655.00
₩107,530.00
2026-08-12
₩99,395.00
+1415.00
+1.42%
₩97,379.50
₩100,810.00
₩105,235.00
₩100,465.00
₩103,460.00
2026-08-11
₩98,395.00
-635.00
-0.65%
₩96,012.65
₩97,760.00
₩100,520.00
₩96,825.00
₩99,395.00
2026-08-10
₩98,280.00
+620.00
+0.63%
₩96,636.30
₩98,900.00
₩100,520.00
₩97,390.00
₩98,395.00
2026-08-07
₩99,045.00
+965.00
+0.97%
₩96,030.49
₩100,010.00
₩101,105.00
₩96,700.00
₩98,280.00
2026-08-06
₩104,625.00
-2125.00
-2.03%
₩95,103.89
₩102,500.00
₩103,445.00
₩98,190.00
₩99,045.00
2026-08-05
₩100,435.00
+4585.00
+4.57%
₩97,075.55
₩105,020.00
₩105,890.00
₩103,540.00
₩104,625.00
2026-08-04
₩99,360.00
+1090.00
+1.10%
₩92,837.40
₩100,450.00
₩101,265.00
₩95,920.00
₩100,435.00
2026-08-03
₩109,520.00
-8330.00
-7.61%
₩91,830.00
₩101,190.00
₩102,255.00
₩98,620.00
₩99,360.00
2026-07-31
₩87,840.00
+9930.00
+11.30%
₩99,389.48
₩97,770.00
₩110,015.00
₩97,000.00
₩109,520.00
2026-07-30
₩89,395.00
-100.00
-0.11%
₩89,295.00
₩89,295.00
₩94,400.00
₩86,865.00
₩87,840.00
📈 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
₩89,395.00
₩99,389.48
+9994.48
+11.18%
2026-08
₩99,389.48
₩98,074.42
-1315.06
-1.32%
2026-09
₩98,074.42
₩102,629.60
+4555.18
+4.64%
2026-10
₩102,629.60
₩90,768.05
-11861.55
-11.56%
📅 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 (4,132 trading days), $1 invested
overnight-only would now be worth $23.84;
$1 invested intraday-only would be worth $0.22.
102110'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 102110, 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.