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Steepest revenue declines in Taiwan (top 50)

The 50 lowest year-on-year monthly revenue growth rates across the Taiwan market for 2026-09, out of 1,957 tickers with a valid reading. The steepest decline is 8476 at -158.4%.

Revenue month 2026-09. 中文版 (Chinese)

Before you read this list

A revenue decline does not necessarily mean a declining business

This is the mirror image of the high end: a company that recognised one large one-off amount in the same month last year will print something close to -100% simply by returning to normal, with nothing wrong in the underlying business. Project-based revenue — construction, shipbuilding, systems integration — behaves this way by design. What is worth attention is not one month's gap but the direction across several months, and whether the three-month average has fallen below the twelve-month average, which is what weakening momentum actually looks like. This list is a set of names to look into, not a conclusion.

Full ranking

The population is the 1,962 tickers that filed monthly revenue for that month; 1,957 of them had a valid year-on-year rate, 5 disclosed none and 0 were excluded because the same month a year earlier was zero, which makes the ratio meaningless. Blanks stay blank — nothing is zero-filled or carried forward from the previous month. Per-ticker revenue with its 3M and 12M averages is on revenue momentum.

Rank	Ticker	Value	Sector
1	8476	-158.4%	Green Energy and Environmental Services
2	6838	-100.0%	Biotechnology and Medical Care
2	7827	-100.0%	Biotechnology and Medical Care
2	4168	-100.0%	Biotechnology and Medical Care
2	6186	-100.0%	Building Material and Construction
2	3521	-100.0%	Building Material and Construction
7	2537	-98.9%	Building Material and Construction
8	4804	-96.1%	Tourism and Hospitality
9	6535	-95.1%	Biotechnology and Medical Care
10	2528	-94.2%	Building Material and Construction
11	5205	-93.2%	Green Energy and Environmental Services
12	6169	-93.1%	Cultural and Creative
13	2254	-92.5%	Automobile
14	2539	-91.2%	Building Material and Construction
15	3712	-88.5%	Computer and Peripheral Equipment
16	2718	-87.9%	Building Material and Construction
17	5301	-87.8%	Tourism and Hospitality
18	2536	-87.6%	Building Material and Construction
19	2596	-87.1%	Building Material and Construction
20	5531	-85.3%	Building Material and Construction
21	6101	-82.4%	Cultural and Creative
22	2905	-81.2%	Trading and Consumer Goods
23	4413	-78.9%	Textiles
24	5519	-76.4%	Building Material and Construction
25	5468	-74.8%	Semiconductors
26	4406	-74.6%	Textiles
27	2530	-73.7%	Building Material and Construction
28	3049	-72.9%	Optoelectronics
29	4582	-71.0%	Green Energy and Environmental Services
30	5222	-69.8%	Semiconductors
31	4174	-69.7%	Biotechnology and Medical Care
32	2740	-69.5%	Tourism and Hospitality
33	5227	-69.2%	Electronic Parts and Components
34	6624	-67.7%	Green Energy and Environmental Services
35	2314	-67.4%	Communications and Internet
36	2924	-67.2%	Household Goods
37	3349	-67.1%	Computer and Peripheral Equipment
38	3379	-66.7%	Electric Machinery
39	6512	-66.4%	Other Electronics
40	5364	-65.5%	Tourism and Hospitality
41	1468	-64.8%	Textiles
42	1423	-64.2%	Textiles
43	2915	-64.0%	Trading and Consumer Goods
44	7803	-63.6%	Biotechnology and Medical Care
45	4433	-62.9%	Textiles
46	6541	-62.4%	Biotechnology and Medical Care
47	4188	-62.2%	Biotechnology and Medical Care
48	8478	-62.1%	Sports and Leisure
49	6674	-62.0%	Communications and Internet
50	3025	-61.9%	Communications and Internet

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How this ranking is built

What is sorted is the filed year-on-year rate, not a derived score

Every figure comes from the monthly revenue each company files as required, sorted directly — no weighting, no adjustment, no composite score. You can re-sort the same month's raw numbers yourself and get this list back.

A zero base a year earlier is excluded, never printed as infinity

The denominator is revenue in the same month a year ago; when that is zero the ratio is mathematically undefined. Those cases are not padded with a large stand-in number or shown as an infinity symbol — they are excluded, and the count of exclusions is stated on the page.

Ties are kept as ties

Equal values share a rank. No secondary key is used to force them apart, because that would manufacture an ordering that does not exist in the data.

Every month is frozen on its own, never rewritten backwards

The list moves with each monthly filing and every month is frozen separately. A later revenue correction produces a new month rather than editing one already frozen.

Frequently asked questions

Which Taiwan stocks have the steepest revenue declines?

For revenue month 2026-09 the steepest decline is 8476 at -158.4%. The tenth reads -94.2% and the fiftieth -61.9%. All fifty, each with its sector, are in the table on this page.

How often is this ranking updated?

Once a month. Listed companies in Taiwan file the previous month's revenue in the first days of the following month, and the list is re-sorted once the market has filed. What you see is the month 2026-09. Each month is frozen separately — a later correction produces a new version rather than editing the one already published.

Why does the population show 1,957 tickers rather than all 1,962?

The 1,962 figure is how many tickers filed monthly revenue for that month. Of those, 5 disclosed no year-on-year rate and 0 were excluded because revenue in the same month a year earlier was zero, which makes the ratio incomputable, leaving 1,957. Companies that do not file monthly revenue at all are outside the scope of this table and are not counted as undisclosed, which would overstate the exclusions.

Does the highest growth rate mean the strongest company?

No. The denominator is the same month a year ago, so the smaller that base, the more extreme this year's percentage — the names at the very top usually say more about last year than about this one. The reasons are set out under what to know before reading it. For an actual trend, the three-month revenue average against the twelve-month average is more reliable than one month's rate.

Can I get this ranking through the API?

Yes. The market-wide latest monthly revenue table, including the year-on-year rate, is available programmatically on the free tier, and sorting it reproduces this list. Reading the ranking as it stood in any past month requires historical snapshots, which is a paid tier.

This is data and tooling, not investment advice. The ranking is a sort of cross-sectional values for one period; it carries no judgement of quality and is not a recommendation of any kind.