Big move · Taiwan stocks
Wiwynn Corporation (6669) tumbles 9.9% to TWD 1,905.00
Its biggest one-day fall in at least a year, on 2.9 times its 20-day average volume.
- Close
- TWD 1,905.00
- On the day
- −9.9%
- Volume
- 2.9× average
- vs 52-week high
- −27.2%
Wiwynn Corporation closing prices
The last 90 closes up to 15 October 2026. The live chart is on the 6669 page.
What happened
Wiwynn Corporation (6669) closed at TWD 1,905.00 on 15 October 2026, down 9.9% from TWD 2,115.00 the session before.
It was 6669's biggest one-day fall in at least a year. It was the third lower close in a row. Over 5 sessions the price is down 15.0%, and over 20 sessions it is down 16.1%.
The close is 27.2% below the highest close of the past year (TWD 2,615.00 on 1 Sept 2026) and 72.2% above the lowest (TWD 1,106.35 on 31 Mar 2026).
Trading was heavy: volume was 2.9 times its average of the sessions before.
Across the 28 TAIWAN stocks we track, 5 closed higher and 23 closed lower that day, with a median change of −4.06%. 6669's change was −9.9%.
This page reports what the price and volume data show. It does not say why the price moved.
The numbers
| Previous close | TWD 2,115.00 |
|---|---|
| Close | TWD 1,905.00 |
| Change on the day | −9.93% |
| Change over 5 sessions | −14.96% |
| Change over 20 sessions | −16.08% |
| Volume | 9.31 Million |
| Average volume, up to 20 sessions before | 3.18 Million |
| Volume against that average | 2.9 times |
| Highest close in the past year | TWD 2,615.00 (1 Sept 2026) |
| Lowest close in the past year | TWD 1,106.35 (31 Mar 2026) |
The full chart and history are on Wiwynn Corporation (6669). More from this market: TAIWAN news today.