Big move · Taiwan stocks
Co-Tech Development Corporation (8358) tumbles 7.9% to TWD 493.00
Its biggest one-day fall in 2 months.
- Close
- TWD 493.00
- On the day
- −7.9%
- Volume
- 0.3× average
- vs 52-week high
- −29.6%
Co-Tech Development Corporation closing prices
The last 90 closes up to 13 October 2026. The live chart is on the 8358 page.
What happened
Co-Tech Development Corporation (8358) closed at TWD 493.00 on 13 October 2026, down 7.9% from TWD 535.00 the session before.
It was 8358's biggest one-day fall in 2 months. It was the fourth lower close in a row. Over 5 sessions the price is down 5.0%, and over 20 sessions it is down 6.3%.
The close is 29.6% below the highest close of the past year (TWD 700.00 on 18 Jun 2026) and 141.7% above the lowest (TWD 204.00 on 14 Oct 2025).
Trading was light: volume was 28% of its recent average.
Across the 20 TAIPEIEXCHANGE stocks we track, 2 closed higher and 17 closed lower that day, with a median change of −4.18%. 8358's change was −7.9%.
This page reports what the price and volume data show. It does not say why the price moved.
The numbers
| Previous close | TWD 535.00 |
|---|---|
| Close | TWD 493.00 |
| Change on the day | −7.85% |
| Change over 5 sessions | −5.01% |
| Change over 20 sessions | −6.27% |
| Volume | 4.06 Million |
| Average volume, up to 20 sessions before | 14.53 Million |
| Volume against that average | 0.3 times |
| Highest close in the past year | TWD 700.00 (18 Jun 2026) |
| Lowest close in the past year | TWD 204.00 (14 Oct 2025) |
The full chart and history are on Co-Tech Development Corporation (8358). More from this market: TAIPEIEXCHANGE news today.