Market index
Taiwan Weighted Index
Taiwan's capitalization-weighted index of all listed shares. With TSMC and other chipmakers dominating the weighting, it tracks the global semiconductor cycle alongside Korean chip stocks.
At a glance
Taiwan Weighted Index: latest value and prior change
As of 2026-09-14, Taiwan Weighted Index is 45,863 pt. It is 322.3 pt lower than 46,185 pt on 2026-09-11.
Across 141 available observations from 2026-02-11 to 2026-09-14, the latest value is at the tie-adjusted 83rd percentile.
- Observed on
- Default comparison window
- 2026-02-11–2026-09-14
- Observations · observed cadence
- 141 · Daily
- Data source
- Naver Finance
A high or low percentile does not by itself make the indicator positive, negative, or a buy or sell signal.
Time-series chart
Taiwan Weighted Index
2026-02-11–2026-09-14
Long-history series are stored as real provider observations. Index, FX, VIX, and ratio charts use historical backfill where providers expose it; Korean investor flow and margin-credit feeds expand as stable historical endpoints become available.
Recent observations and calculated changes
The ten latest chart observations. Change subtracts the previous observation; intervals vary with holidays, release schedules and missing data. A difference in rates or ratios is not an investment return.
| Observed | Value | Previous date | Difference (current − previous) |
|---|---|---|---|
| 2026-09-14 | 45,863 pt | 2026-09-11 | -322.3 pt |
| 2026-09-11 | 46,185 pt | 2026-09-10 | -755.6 pt |
| 2026-09-10 | 46,940 pt | 2026-09-09 | -242.9 pt |
| 2026-09-09 | 47,183 pt | 2026-09-08 | 77.58 pt |
| 2026-09-08 | 47,106 pt | 2026-09-07 | -220.5 pt |
| 2026-09-07 | 47,326 pt | 2026-09-04 | 775.1 pt |
| 2026-09-04 | 46,551 pt | 2026-09-03 | 693.5 pt |
| 2026-09-03 | 45,858 pt | 2026-09-02 | -307.1 pt |
| 2026-09-02 | 46,165 pt | 2026-09-01 | -784.0 pt |
| 2026-09-01 | 46,949 pt | 2026-08-31 | 820.3 pt |
Source: Naver Finance
Interpretation guide
The Taiwan Weighted Index: the closest mirror to Korean semiconductors
The TAIEX aggregates every listing on the Taiwan Stock Exchange, capitalization-weighted. With TSMC alone hovering above a third of the index, it is the overseas benchmark most structurally similar to Korea's market and a live mirror of the global semiconductor cycle.
What the index contains
TSMC leads, followed by MediaTek, Foxconn, and an electronics hardware complex that dominates the weights. The index effectively compresses the market's verdict on global foundry and AI hardware demand into a single number.
- TSMC's guidance and monthly revenue releases are the biggest single driver.
- TAIEX diverging from the SOX hints at a gap between foundry and logic/memory cycles.
- Strength in AI-server component names signals an expanding hardware demand cycle.
The link to the Korean market
Korea and Taiwan share the most similar export mix and index composition in Asia, trade in the same hours, and are often allocated as one bucket by foreign investors.
- TAIEX-versus-KOSPI relative strength tracks shifting foreign preference between the two markets.
- If Samsung lags a TSMC surge, separate foundry-competition news from memory-cycle news.
- When cross-strait geopolitics flares, a Taiwan discount can temporarily route flows toward Korea.
Uses and misreads
Reading TAIEX strength as Taiwanese domestic health is the standard mistake — semiconductors overwhelm everything else. For Korean investors it works best strictly as a chip-cycle coincident indicator and a foreign-allocation reference.
- Triangulate TAIEX, the SOX, and Samsung Electronics to locate a chip rally's breadth and origin.
- A TSMC-driven Taiwan selloff spills into Korean chips; a domestic or financial one usually doesn't.
- Overlay TapeFlow's semiconductor exports YoY to compare sentiment with actual shipments.