New high · Taiwan stocks
Formosa Petrochemical Corporation (6505) closes at a 52-week high of TWD 122.50
Its third new 52-week high in 5 sessions. Up 47.8% over 20 sessions.
- Close
- TWD 122.50
- On the day
- +9.9%
- Volume
- 1.4× average
- vs 52-week high
- New high
Formosa Petrochemical Corporation closing prices
The last 90 closes up to 16 October 2026. The live chart is on the 6505 page.
What happened
Formosa Petrochemical Corporation (6505) closed at TWD 122.50 on 16 October 2026, up 9.9% from TWD 111.50 the session before.
It is the third new high in the last 5 sessions. Over 5 sessions the price is up 10.9%, and over 20 sessions it is up 47.8%.
That close is above every close of the past year. The previous highest was TWD 119.50 on 14 Oct 2026, and the new close is 2.5% above it.
Volume was close to its recent average.
Across the 21 TAIWAN stocks we track, 14 closed higher and 6 closed lower that day, with a median change of +0.96%. 6505'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 111.50 |
|---|---|
| Close | TWD 122.50 |
| Change on the day | +9.87% |
| Change over 5 sessions | +10.86% |
| Change over 20 sessions | +47.77% |
| Volume | 49.50 Million |
| Average volume, up to 20 sessions before | 35.98 Million |
| Volume against that average | 1.4 times |
| Highest close in the past year | TWD 119.50 (14 Oct 2026) |
| Lowest close in the past year | TWD 40.80 (14 Oct 2025) |
The full chart and history are on Formosa Petrochemical Corporation (6505). More from this market: TAIWAN news today.