TWSE · 6614 · stock
International Integrated Systems, Inc. (6614) stock price history
Every TWSE trading session of International Integrated Systems, Inc. from Sep 3, 2024 to Sep 29, 2026: 502 daily bars, adjusted for splits and dividends, with minute bars from Sep 15, 2026 forward. The full series is served by the API: a free key covers the last year, paid plans the whole history and minute bars.
6614 adjusted close, 2024 to 2026
- NT$80.15
- All time high, 2024
- NT$69.49
- 52 week high, NT$35.10 low
- 502
- Daily sessions since 2024
Last updated Sep 29, 2026, the last stored session. Refreshes after each trading day. Full 2024 to 2026 series and minute bars.
6614 key facts
- International Integrated Systems, Inc. (6614) closed at NT$35.15 on Sep 29, 2026 on TWSE.
- 6614's all time high close is NT$80.15, set on Sep 4, 2024; its all time low close is NT$35.15 on Sep 29, 2026.
- 6614's 52 week range is NT$35.10 to NT$69.49.
- 6614 returned -46.9% over the year to Sep 29, 2026.
- Since Sep 3, 2024 6614 returned -53%, -30.6% a year compounded.
- 6614's deepest drawdown was -56.1% from Sep 4, 2024 to Sep 29, 2026.
- DataCedar holds 502 daily sessions of 6614 history from Sep 3, 2024 and minute bars from Sep 15, 2026, adjusted for splits and dividends, served by the API under a key.
6614 price chart, 2024 to 2026
6614 returns
Price return from the last close on or before the window start to Sep 29, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | -2.1% |
| 3 months | -7.5% |
| 6 months | -13.2% |
| Year to date | -25.3% |
| 1 year | -46.9% |
| 3 years | n/a |
| 5 years | n/a |
| 10 years | n/a |
| Since Sep 3, 2024 | -53.0% |
| Compound annual growth, 2.1 years | -30.6% |
6614 records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- NT$80.15 on Sep 4, 2024
- All time low close
- NT$35.15 on Sep 29, 2026
- 52 week high
- NT$69.49 on Oct 29, 2025
- 52 week low
- NT$35.10 on Sep 29, 2026
- Deepest drawdown
- -56.1% from Sep 4, 2024 to Sep 29, 2026, not yet recovered
- Best single session
- +17.9% on Apr 10, 2025
- Worst single session
- -17.1% on Apr 7, 2025
- Volatility, 1 year annualised
- 27.1%
- Sessions closing higher, 1 year
- 36%
- Best calendar year
- 2025, +2%
- Worst calendar year
- 2025, +2%
6614 price history by year
Open is the first session's open, high and low span the year, close is the last session's close, and the return is close over the previous year's close. 2024 starts on Sep 3, 2024; 2026 runs to Sep 29, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | NT$48.50 | NT$49.07 | NT$35.10 | NT$35.15 | -28.1% | 15.1M | 179 |
| 2025 | NT$48.19 | NT$73.80 | NT$39.89 | NT$48.88 | +1.8% | 23.7M | 242 |
| 2024 | NT$57.78 | NT$85.09 | NT$47.16 | NT$48.00 | n/a | 4.8M | 81 |
6614 monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| September 2026 | NT$35.15 | -2.1% |
| August 2026 | NT$35.90 | -2.6% |
| July 2026 | NT$36.85 | -3.4% |
| June 2026 | NT$38.15 | +1.4% |
| May 2026 | NT$37.62 | -5.9% |
| April 2026 | NT$39.97 | +3.0% |
| March 2026 | NT$38.82 | -11.1% |
| February 2026 | NT$43.66 | -2.3% |
| January 2026 | NT$44.67 | -8.6% |
| December 2025 | NT$48.88 | -2.5% |
| November 2025 | NT$50.13 | -25.3% |
| October 2025 | NT$67.09 | -0.1% |
About the 6614 data
Daily bars. 502 sessions from Sep 3, 2024 to Sep 29, 2026, one row per TWSE trading day with open, high, low, close and volume. Prices are adjusted for splits and cash dividends so the series is comparable across its whole length; the API also serves the raw, split only and dividend only views.
Minute bars. Stored from Sep 15, 2026 forward, most recent session Sep 29, 2026. Minute history is captured from the day collection began and is never backfilled, so this start date is exact. Five minute, fifteen minute and hourly bars are derived from these minutes.
Time and currency. Session dates are TWSE trading days; minute timestamps are UTC. Prices are in TWD. Volume is shares traded on the session.
Get the data. The REST endpoint returns the daily series as JSON with pagination; a free key serves the last year, Quant and above the full history back to Sep 3, 2024, and minute bars come with the paid windows. It takes timeframe (1Min, 5Min, 15Min, 1Hour, 1Day), adjustment, start and end. See the bars endpoint and authentication, and pricing for the plan windows.
curl "https://api.datacedar.com/v3/stocks/6614/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on TWSE
Common questions
6614 share price history
