000660

SK Hynix Inc

🇰🇷 KR · Last updated: 2026-10-08

₩1,681,000.00

-2.38%

Open₩1,722,000.00

High₩1,759,000.00

Low₩1,681,000.00

Close₩1,681,000.00

Adj Close₩1,681,000.00

📊 Chart

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🌙 Overnight PnL Breakdown

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
2026-07-10	₩2,186,000.00	+110000.00	+5.03%	₩2,296,000.00	₩2,296,000.00	₩2,305,000.00	₩2,166,000.00	₩2,180,000.00
2026-07-13	₩2,180,000.00	-67000.00	-3.07%	₩2,225,434.86	₩2,113,000.00	₩2,142,000.00	₩1,839,000.00	₩1,845,000.00
2026-07-14	₩1,845,000.00	-20000.00	-1.08%	₩2,201,310.91	₩1,825,000.00	₩1,936,000.00	₩1,678,000.00	₩1,913,000.00
2026-07-15	₩1,913,000.00	+207000.00	+10.82%	₩2,439,508.17	₩2,120,000.00	₩2,171,000.00	₩2,070,000.00	₩2,082,000.00
2026-07-16	₩2,082,000.00	-180000.00	-8.65%	₩2,228,599.68	₩1,902,000.00	₩1,919,000.00	₩1,821,000.00	₩1,842,000.00
2026-07-21	₩1,842,000.00	-67000.00	-3.64%	₩2,147,537.69	₩1,775,000.00	₩1,889,000.00	₩1,732,000.00	₩1,836,000.00
2026-07-22	₩1,836,000.00	+141000.00	+7.68%	₩2,312,462.97	₩1,977,000.00	₩2,006,000.00	₩1,830,000.00	₩1,830,000.00
2026-07-23	₩1,830,000.00	+80000.00	+4.37%	₩2,413,554.25	₩1,910,000.00	₩1,948,000.00	₩1,845,000.00	₩1,919,000.00
2026-07-24	₩1,919,000.00	-25000.00	-1.30%	₩2,382,111.39	₩1,894,000.00	₩1,894,000.00	₩1,752,000.00	₩1,759,000.00
2026-07-27	₩1,759,000.00	+55000.00	+3.13%	₩2,456,594.69	₩1,814,000.00	₩1,821,000.00	₩1,707,000.00	₩1,816,000.00
2026-07-28	₩1,816,000.00	-154000.00	-8.48%	₩2,248,271.13	₩1,662,000.00	₩1,674,000.00	₩1,550,000.00	₩1,550,000.00
2026-07-29	₩1,550,000.00	+17000.00	+1.10%	₩2,272,929.59	₩1,567,000.00	₩1,619,000.00	₩1,246,000.00	₩1,401,000.00
2026-07-30	₩1,401,000.00	-40000.00	-2.86%	₩2,208,035.10	₩1,361,000.00	₩1,459,000.00	₩1,287,000.00	₩1,322,000.00
2026-07-31	₩1,322,000.00	+375000.00	+28.37%	₩2,834,368.80	₩1,697,000.00	₩1,718,000.00	₩1,586,000.00	₩1,718,000.00
2026-08-03	₩1,718,000.00	-76000.00	-4.42%	₩2,708,983.45	₩1,642,000.00	₩1,645,000.00	₩1,562,000.00	₩1,567,000.00
2026-08-04	₩1,567,000.00	+53000.00	+3.38%	₩2,800,608.29	₩1,620,000.00	₩1,630,000.00	₩1,483,000.00	₩1,577,000.00
2026-08-05	₩1,577,000.00	+116000.00	+7.36%	₩3,006,613.72	₩1,693,000.00	₩1,701,000.00	₩1,647,000.00	₩1,668,000.00
2026-08-06	₩1,668,000.00	-68000.00	-4.08%	₩2,884,041.94	₩1,600,000.00	₩1,606,000.00	₩1,481,000.00	₩1,495,000.00
2026-08-07	₩1,495,000.00	+26000.00	+1.74%	₩2,934,199.19	₩1,521,000.00	₩1,542,000.00	₩1,409,000.00	₩1,422,000.00
2026-08-10	₩1,422,000.00	+21000.00	+1.48%	₩2,977,531.25	₩1,443,000.00	₩1,487,000.00	₩1,397,000.00	₩1,420,000.00
2026-08-11	₩1,420,000.00	-15000.00	-1.06%	₩2,946,078.45	₩1,405,000.00	₩1,455,000.00	₩1,373,000.00	₩1,425,000.00
2026-08-12	₩1,425,000.00	+31000.00	+2.18%	₩3,010,168.58	₩1,456,000.00	₩1,549,000.00	₩1,440,000.00	₩1,504,000.00
2026-08-13	₩1,504,000.00	+78000.00	+5.19%	₩3,166,281.05	₩1,582,000.00	₩1,634,000.00	₩1,567,000.00	₩1,593,000.00
2026-08-14	₩1,593,000.00	+102000.00	+6.40%	₩3,369,018.44	₩1,695,000.00	₩1,697,000.00	₩1,626,000.00	₩1,645,000.00
2026-08-18	₩1,645,000.00	+91000.00	+5.53%	₩3,555,389.67	₩1,736,000.00	₩1,792,000.00	₩1,640,000.00	₩1,662,000.00
2026-08-19	₩1,662,000.00	-117000.00	-7.04%	₩3,305,100.51	₩1,545,000.00	₩1,559,000.00	₩1,486,000.00	₩1,500,000.00
2026-08-20	₩1,500,000.00	+113000.00	+7.53%	₩3,554,084.74	₩1,613,000.00	₩1,720,000.00	₩1,576,000.00	₩1,691,000.00
2026-08-21	₩1,691,000.00	-16000.00	-0.95%	₩3,520,456.50	₩1,675,000.00	₩1,773,000.00	₩1,669,000.00	₩1,730,000.00
2026-08-24	₩1,730,000.00	+45000.00	+2.60%	₩3,612,029.07	₩1,775,000.00	₩1,792,000.00	₩1,670,000.00	₩1,671,000.00
2026-08-25	₩1,671,000.00	-73000.00	-4.37%	₩3,454,232.47	₩1,598,000.00	₩1,687,000.00	₩1,557,000.00	₩1,678,000.00
2026-08-26	₩1,678,000.00	-10000.00	-0.60%	₩3,433,647.06	₩1,668,000.00	₩1,735,000.00	₩1,662,000.00	₩1,688,000.00
2026-08-27	₩1,688,000.00	+88000.00	+5.21%	₩3,612,652.35	₩1,776,000.00	₩1,788,000.00	₩1,708,000.00	₩1,730,000.00
2026-08-28	₩1,730,000.00	-26000.00	-1.50%	₩3,558,358.15	₩1,704,000.00	₩1,725,000.00	₩1,653,000.00	₩1,653,000.00
2026-08-31	₩1,653,000.00	-57000.00	-3.45%	₩3,435,656.15	₩1,596,000.00	₩1,674,000.00	₩1,577,000.00	₩1,674,000.00
2026-09-01	₩1,674,000.00	-8000.00	-0.48%	₩3,419,237.24	₩1,666,000.00	₩1,713,000.00	₩1,652,000.00	₩1,693,000.00
2026-09-02	₩1,693,000.00	-63000.00	-3.72%	₩3,292,000.42	₩1,630,000.00	₩1,661,000.00	₩1,612,000.00	₩1,613,000.00
2026-09-03	₩1,613,000.00	+30000.00	+1.86%	₩3,353,227.95	₩1,643,000.00	₩1,649,000.00	₩1,558,000.00	₩1,596,000.00
2026-09-04	₩1,596,000.00	+24000.00	+1.50%	₩3,403,652.43	₩1,620,000.00	₩1,683,000.00	₩1,620,000.00	₩1,647,000.00
2026-09-07	₩1,647,000.00	+90000.00	+5.46%	₩3,589,644.37	₩1,737,000.00	₩1,783,000.00	₩1,733,000.00	₩1,783,000.00
2026-09-08	₩1,783,000.00	+16000.00	+0.90%	₩3,621,856.54	₩1,799,000.00	₩1,889,000.00	₩1,777,000.00	₩1,793,000.00
2026-09-09	₩1,793,000.00	+2000.00	+0.11%	₩3,625,896.54	₩1,795,000.00	₩1,883,000.00	₩1,795,000.00	₩1,856,000.00
2026-09-10	₩1,856,000.00	+23000.00	+1.24%	₩3,670,829.53	₩1,879,000.00	₩1,890,000.00	₩1,811,000.00	₩1,853,000.00
2026-09-11	₩1,853,000.00	-80000.00	-4.32%	₩3,512,347.95	₩1,773,000.00	₩1,827,000.00	₩1,768,000.00	₩1,812,000.00
2026-09-14	₩1,812,000.00	-105000.00	-5.79%	₩3,308,817.85	₩1,707,000.00	₩1,740,000.00	₩1,686,000.00	₩1,697,000.00
2026-09-15	₩1,697,000.00	-7000.00	-0.41%	₩3,295,169.22	₩1,690,000.00	₩1,729,000.00	₩1,671,000.00	₩1,690,000.00
2026-09-16	₩1,690,000.00	-4000.00	-0.24%	₩3,287,370.01	₩1,686,000.00	₩1,760,000.00	₩1,686,000.00	₩1,759,000.00
2026-09-17	₩1,759,000.00	+11000.00	+0.63%	₩3,307,927.75	₩1,770,000.00	₩1,785,000.00	₩1,735,000.00	₩1,745,000.00
2026-09-18	₩1,745,000.00	+65000.00	+3.72%	₩3,431,145.69	₩1,810,000.00	₩1,857,000.00	₩1,805,000.00	₩1,857,000.00
2026-09-21	₩1,857,000.00	+15000.00	+0.81%	₩3,458,860.92	₩1,872,000.00	₩1,888,000.00	₩1,847,000.00	₩1,868,000.00
2026-09-22	₩1,868,000.00	+41000.00	+2.19%	₩3,534,778.10	₩1,909,000.00	₩1,935,000.00	₩1,832,000.00	₩1,840,000.00
2026-09-23	₩1,840,000.00	+59000.00	+3.21%	₩3,648,121.53	₩1,899,000.00	₩1,900,000.00	₩1,836,000.00	₩1,862,000.00
2026-09-28	₩1,862,000.00	-37000.00	-1.99%	₩3,575,629.32	₩1,825,000.00	₩1,840,000.00	₩1,768,000.00	₩1,768,000.00
2026-09-29	₩1,768,000.00	-13000.00	-0.74%	₩3,549,337.93	₩1,755,000.00	₩1,788,000.00	₩1,736,000.00	₩1,765,000.00
2026-09-30	₩1,765,000.00	+24000.00	+1.36%	₩3,597,600.88	₩1,789,000.00	₩1,824,000.00	₩1,773,000.00	₩1,776,000.00
2026-10-01	₩1,776,000.00	-14000.00	-0.79%	₩3,569,241.41	₩1,762,000.00	₩1,833,000.00	₩1,749,000.00	₩1,833,000.00
2026-10-02	₩1,833,000.00	-3000.00	-0.16%	₩3,563,399.77	₩1,830,000.00	₩1,855,000.00	₩1,825,000.00	₩1,841,000.00
2026-10-06	₩1,841,000.00	-6000.00	-0.33%	₩3,551,786.30	₩1,835,000.00	₩1,837,000.00	₩1,771,000.00	₩1,773,000.00
2026-10-07	₩1,773,000.00	-45000.00	-2.54%	₩3,461,639.44	₩1,728,000.00	₩1,779,000.00	₩1,723,000.00	₩1,723,000.00
2026-10-08	₩1,723,000.00	-1000.00	-0.06%	₩3,459,630.37	₩1,722,000.00	₩1,759,000.00	₩1,681,000.00	₩1,681,000.00

📈 Overnight % Gain Trend

Cumulative overnight-only return, indexed to 0% on 2026-07-09 (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	₩2,186,000.00	₩2,834,368.80	+648368.80	+29.66%
2026-08	₩2,834,368.80	₩3,435,656.15	+601287.35	+21.21%
2026-09	₩3,435,656.15	₩3,597,600.88	+161944.73	+4.71%
2026-10	₩3,597,600.88	₩3,459,630.37	-137970.51	-3.84%

📅 Seasonality — Close Price by Year

Years back

Each line is one calendar year's close price (or % 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 2026-10-08 (4,118 trading days), $1 invested overnight-only would now be worth $13,087.90; $1 invested intraday-only would be worth $0.01. 000660'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 000660, with buy/sell triggers plotted right on the chart.

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🔮 Price Prediction

10 remaining today

Model predicts next 5 trading days based on last 10 days of price action.

🤖 AI Analysis — 3/3 free lookups remaining today

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📅 Price History (last 30 days)

Date	Close	Volume
2026-10-08	₩1,681,000.00	3,038,368
2026-10-07	₩1,723,000.00	2,530,770
2026-10-06	₩1,773,000.00	2,668,142
2026-10-02	₩1,841,000.00	1,948,254
2026-10-01	₩1,833,000.00	2,129,033
2026-09-30	₩1,776,000.00	2,933,339
2026-09-29	₩1,765,000.00	2,856,852
2026-09-28	₩1,768,000.00	3,161,335
2026-09-23	₩1,862,000.00	2,825,369
2026-09-22	₩1,840,000.00	3,013,392
2026-09-21	₩1,868,000.00	2,599,604
2026-09-18	₩1,857,000.00	4,374,176
2026-09-17	₩1,745,000.00	2,594,720
2026-09-16	₩1,759,000.00	2,741,153
2026-09-15	₩1,690,000.00	2,556,955
2026-09-14	₩1,697,000.00	3,778,153
2026-09-11	₩1,812,000.00	2,620,493
2026-09-10	₩1,853,000.00	4,375,585
2026-09-09	₩1,856,000.00	3,523,439
2026-09-08	₩1,793,000.00	4,119,139
2026-09-07	₩1,783,000.00	3,478,577
2026-09-04	₩1,647,000.00	2,827,725
2026-09-03	₩1,596,000.00	2,628,539
2026-09-02	₩1,613,000.00	2,533,913
2026-09-01	₩1,693,000.00	2,481,959
2026-08-31	₩1,674,000.00	3,738,187
2026-08-28	₩1,653,000.00	2,796,942
2026-08-27	₩1,730,000.00	3,157,859
2026-08-26	₩1,688,000.00	2,923,810
2026-08-25	₩1,678,000.00	4,013,938

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