Largest Companies on Taiwan OTC Exchange by Market Cap

Largest companies on Taiwan OTC Exchange by market cap. Taiwan OTC Exchange (TWO) lists 626 publicly traded companies with a combined market cap of $252.79 Billion. Based in Taiwan, this ranking covers all TWO-listed stocks ordered by market capitalization — from the largest blue-chip companies to smaller listed firms. Updated daily with live market data.

Total Market Cap (USD)

$252.79 Billion

Listed Companies

626

Exchange Location

Taiwan

Top Taiwan OTC Exchange Stocks by Market Capitalization (November 2026)

Top Taiwan OTC Exchange stocks by market capitalization as of November 2026, covering 626 listed companies.

Rank Company Market Cap (USD) Market Cap (Local) Price 24h Change 7d Change Country 52-Week Range 24h Volume
1 Aspeed Technology
TWO:5274
$18.39 Billion NT$583.62 Billion NT$14035.00 -4.72% -12.36% Taiwan Low: NT$5625.00 / High: NT$20905.00 8.34 Million
2 MPI Corporation
TWO:6223
$12.76 Billion NT$405.15 Billion NT$4135.00 -1.31% -13.67% Taiwan Low: NT$1720.00 / High: NT$7380.00 24.24 Million
3 Phison Electronics
TWO:8299
$11.21 Billion NT$355.86 Billion NT$1710.00 +1.18% -10.47% Taiwan Low: NT$1015.00 / High: NT$2880.00 64.83 Million
4 Taiwan Union Technology
TWO:6274
$10.14 Billion NT$321.90 Billion NT$1115.00 +2.29% -12.89% Taiwan Low: NT$377.50 / High: NT$1900.00 270.82 Million
5 GlobalWafers Co Ltd
TWO:6488
$9.32 Billion NT$295.95 Billion NT$619.00 -9.64% -23.96% Taiwan Low: NT$344.00 / High: NT$1515.00 323.56 Million
6 Vanguard International Semiconductor
TWO:5347
$8.06 Billion NT$255.83 Billion NT$137.00 +2.24% -15.17% Taiwan Low: NT$88.00 / High: NT$220.00 372.13 Million
7 International Games System Co Ltd
TWO:3293
$6.91 Billion NT$219.24 Billion NT$778.00 +0.13% -2.26% Taiwan Low: NT$670.00 / High: NT$819.00 43.09 Million
8 LandMark Optoelectronics
TWO:3081
$6.12 Billion NT$194.29 Billion NT$2100.00 -3.45% -16.00% Taiwan Low: NT$404.00 / High: NT$3530.00 82.20 Million
9 E Ink Holdings
TWO:8069
$5.25 Billion NT$166.52 Billion NT$144.50 +0.70% -7.96% Taiwan Low: NT$136.50 / High: NT$249.00 163.72 Million
10 eMemory Technology
TWO:3529
$5.08 Billion NT$161.32 Billion NT$2160.00 +0.00% -14.12% Taiwan Low: NT$1490.00 / High: NT$4705.00 24.74 Million
11 Chipbond Technology
TWO:6147
$4.11 Billion NT$130.30 Billion NT$175.00 +1.45% -15.46% Taiwan Low: NT$51.20 / High: NT$305.50 696.13 Million
12 Xintec
TWO:3374
$3.82 Billion NT$121.30 Billion NT$447.00 +3.95% -3.56% Taiwan Low: NT$129.50 / High: NT$500.00 278.03 Million
13 Auras Technology Co Ltd
TWO:3324
$3.75 Billion NT$119.05 Billion NT$1300.00 -1.52% -2.62% Taiwan Low: NT$820.00 / High: NT$1710.00 88.90 Million
14 All Ring Tech Co Ltd
TWO:6187
$3.27 Billion NT$103.69 Billion NT$1065.00 -1.39% -17.12% Taiwan Low: NT$314.50 / High: NT$1675.00 68.48 Million
15 Adata Technology Co Ltd
TWO:3260
$3.18 Billion NT$100.89 Billion NT$318.00 +0.00% -3.78% Taiwan Low: NT$173.50 / High: NT$508.00 131.23 Million
16 Sino-American Silicon Products
TWO:5483
$3.11 Billion NT$98.57 Billion NT$160.50 -1.23% -13.01% Taiwan Low: NT$97.00 / High: NT$278.00 387.32 Million
17 InnoDisk
TWO:5289
$3.07 Billion NT$97.30 Billion NT$1010.00 -0.98% -7.76% Taiwan Low: NT$452.00 / High: NT$1990.00 29.50 Million
18 Ardentec
TWO:3264
$2.94 Billion NT$93.36 Billion NT$197.00 +1.03% -20.56% Taiwan Low: NT$86.20 / High: NT$284.00 432.61 Million
19 Co-Tech Development
TWO:8358
$2.92 Billion NT$92.54 Billion NT$366.50 -2.53% -12.84% Taiwan Low: NT$217.00 / High: NT$700.00 289.12 Million
20 Chunghwa Precision Test Tech Co Ltd
TWO:6510
$2.86 Billion NT$90.83 Billion NT$2770.00 +5.52% -4.81% Taiwan Low: NT$1465.00 / High: NT$4200.00 20.49 Million
21 Acter Co Ltd
TWO:5536
$2.82 Billion NT$89.59 Billion NT$722.00 -1.37% -4.12% Taiwan Low: NT$618.00 / High: NT$1435.00 33.21 Million
22 Universal Microwave Technology
TWO:3491
$2.66 Billion NT$84.29 Billion NT$1225.00 -2.78% -3.92% Taiwan Low: NT$421.50 / High: NT$2200.00 31.67 Million
23 Fulltech Fiber Glass
TWO:1815
$2.21 Billion NT$70.18 Billion NT$135.00 +3.05% +3.05% Taiwan Low: NT$60.30 / High: NT$154.00 2.33 Billion
24 Simplo Technology Co Ltd
TWO:6121
$2.13 Billion NT$67.51 Billion NT$365.00 -1.08% -2.67% Taiwan Low: NT$312.00 / High: NT$467.50 12.67 Million
25 Chang Wah Technology Co Ltd
TWO:6548
$1.86 Billion NT$59.07 Billion NT$64.00 +1.27% -12.09% Taiwan Low: NT$39.50 / High: NT$98.10 139.05 Million
26 LuxNet
TWO:4979
$1.69 Billion NT$53.53 Billion NT$376.00 -1.96% -19.57% Taiwan Low: NT$187.00 / High: NT$718.00 120.62 Million
27 Solar Applied Materials Technology
TWO:1785
$1.52 Billion NT$48.28 Billion NT$81.00 +3.05% -11.67% Taiwan Low: NT$56.20 / High: NT$185.00 203.46 Million
28 Grand Plastic Technology
TWO:3131
$1.51 Billion NT$47.87 Billion NT$1700.00 -2.86% -15.63% Taiwan Low: NT$1335.00 / High: NT$3905.00 8.66 Million
29 FOCI Fiber Optic Communications
TWO:3363
$1.51 Billion NT$47.84 Billion NT$421.00 +1.32% -15.72% Taiwan Low: NT$331.50 / High: NT$990.00 61.95 Million
30 Wafer Works
TWO:6182
$1.50 Billion NT$47.50 Billion NT$82.80 -2.93% -18.82% Taiwan Low: NT$27.05 / High: NT$189.50 1.18 Billion
31 Browave
TWO:3163
$1.39 Billion NT$44.05 Billion NT$465.50 +0.76% -13.48% Taiwan Low: NT$220.50 / High: NT$1260.00 54.02 Million
32 Gudeng Precision Industrial Co Ltd
TWO:3680
$1.34 Billion NT$42.50 Billion NT$442.50 +0.45% -12.38% Taiwan Low: NT$315.00 / High: NT$616.00 24.97 Million
33 Dynapack International Technology
TWO:3211
$1.32 Billion NT$41.99 Billion NT$270.00 -3.40% -17.43% Taiwan Low: NT$256.00 / High: NT$469.00 76.81 Million
34 Taiwan FamilyMart Co Ltd
TWO:5903
$1.29 Billion NT$40.96 Billion NT$183.50 -1.08% -1.34% Taiwan Low: NT$182.50 / High: NT$196.50 477.83K
35 GCS Holdings
TWO:4991
$1.28 Billion NT$40.62 Billion NT$357.00 -2.86% -14.29% Taiwan Low: NT$150.00 / High: NT$870.00 93.64 Million
36 WIN Semiconductors
TWO:3105
$1.28 Billion NT$40.49 Billion NT$501.00 -5.47% +2.04% Taiwan Low: NT$111.00 / High: NT$617.00 600.45 Million
37 Prosperity Dielectrics Co Ltd
TWO:6173
$1.27 Billion NT$40.23 Billion NT$235.00 -0.84% -15.16% Taiwan Low: NT$57.10 / High: NT$350.50 269.62 Million
38 Brighton-Best International Taiwan
TWO:8415
$1.15 Billion NT$36.56 Billion NT$36.45 +0.69% -0.41% Taiwan Low: NT$33.50 / High: NT$38.65 8.08 Million
39 Yuanta Futures Co Ltd
TWO:6023
$1.14 Billion NT$36.29 Billion NT$81.00 -0.49% -1.82% Taiwan Low: NT$81.00 / High: NT$108.00 10.93 Million
40 Longwell Co
TWO:6290
$1.09 Billion NT$34.52 Billion NT$203.50 -0.97% -14.68% Taiwan Low: NT$157.00 / High: NT$367.00 84.91 Million
41 Parade Technologies Ltd
TWO:4966
$1.07 Billion NT$34.02 Billion NT$445.50 -1.11% -14.66% Taiwan Low: NT$445.50 / High: NT$870.00 14.63 Million
42 Coretronic
TWO:5371
$1.03 Billion NT$32.65 Billion NT$83.50 -0.95% -3.24% Taiwan Low: NT$66.10 / High: NT$105.50 352.39 Million
43 Etron Technology
TWO:5351
$966.67 Million NT$30.68 Billion NT$94.20 -1.98% -11.13% Taiwan Low: NT$37.15 / High: NT$135.50 209.23 Million
44 Max Zipper Co Ltd
TWO:8932
$928.27 Million NT$29.46 Billion NT$83.20 -1.65% -5.02% Taiwan Low: NT$80.10 / High: NT$209.00 34.26 Million
45 PixArt Imaging
TWO:3227
$849.53 Million NT$26.96 Billion NT$177.50 +1.43% -4.05% Taiwan Low: NT$175.00 / High: NT$238.00 18.62 Million
46 Keystone Microtech Corp
TWO:6683
$817.71 Million NT$25.95 Billion NT$942.00 +0.11% -18.79% Taiwan Low: NT$358.00 / High: NT$2565.00 19.12 Million
47 AIC Inc
TWO:3693
$816.73 Million NT$25.92 Billion NT$603.00 +5.98% -12.23% Taiwan Low: NT$256.50 / High: NT$754.00 48.26 Million
48 Chief Telecom Inc
TWO:6561
$788.00 Million NT$25.01 Billion NT$325.00 +2.52% +5.01% Taiwan Low: NT$307.00 / High: NT$392.50 2.98 Million
49 Winstek Semiconductor Co Ltd
TWO:3265
$759.86 Million NT$24.12 Billion NT$177.00 -0.56% -18.81% Taiwan Low: NT$88.30 / High: NT$292.50 87.70 Million
50 Gallant Micro Machining Co Ltd
TWO:6640
$756.95 Million NT$24.03 Billion NT$837.00 -0.24% -10.58% Taiwan Low: NT$524.00 / High: NT$1760.00 7.82 Million
51 Episil Holding
TWO:3707
$753.26 Million NT$23.91 Billion NT$59.70 +0.34% -12.59% Taiwan Low: NT$45.60 / High: NT$100.50 336.82 Million
52 Glotech Industrial
TWO:5475
$740.96 Million NT$23.52 Billion NT$185.00 +1.65% +1.09% Taiwan Low: NT$56.40 / High: NT$388.00 159.27 Million
53 Oneness Biotech Co Ltd
TWO:4743
$667.72 Million NT$21.19 Billion NT$44.20 -1.12% -7.24% Taiwan Low: NT$41.15 / High: NT$74.80 32.92 Million
54 Sunmax Biotechnology Co Ltd
TWO:4728
$667.48 Million NT$21.19 Billion NT$389.00 +0.00% -4.89% Taiwan Low: NT$373.00 / High: NT$409.00 408.70K
55 Center Laboratories
TWO:4123
$663.77 Million NT$21.07 Billion NT$28.55 +1.60% -4.19% Taiwan Low: NT$28.10 / High: NT$49.35 23.98 Million
56 Advanced Wireless Semiconductor Co
TWO:8086
$646.99 Million NT$20.54 Billion NT$104.50 -0.95% -12.18% Taiwan Low: NT$93.60 / High: NT$179.00 250.91 Million
57 Golden Friends
TWO:4506
$644.13 Million NT$20.44 Billion NT$115.50 -0.86% -0.86% Taiwan Low: NT$111.00 / High: NT$124.00 1.52 Million
58 EirGenix
TWO:6589
$632.48 Million NT$20.08 Billion NT$66.40 +0.00% +0.00% Taiwan Low: NT$66.40 / High: NT$66.40 579.36K
59 Ability Opto-Electronics Technology Co Ltd
TWO:3362
$627.12 Million NT$19.91 Billion NT$135.00 -1.46% -13.18% Taiwan Low: NT$87.50 / High: NT$211.00 83.86 Million
60 TTY Biopharm Co Ltd
TWO:4105
$624.36 Million NT$19.82 Billion NT$79.70 +1.01% -1.12% Taiwan Low: NT$72.10 / High: NT$86.30 17.69 Million
61 Lungyen Life Service
TWO:5530
$612.78 Million NT$19.45 Billion NT$46.30 -0.22% -2.42% Taiwan Low: NT$44.00 / High: NT$58.00 4.32 Million
62 Taiwan Semiconductor Co Ltd
TWO:5425
$612.46 Million NT$19.44 Billion NT$79.50 +1.15% -11.17% Taiwan Low: NT$50.80 / High: NT$144.00 192.21 Million
63 Sporton International
TWO:6146
$611.39 Million NT$19.41 Billion NT$190.50 +0.26% -6.16% Taiwan Low: NT$155.00 / High: NT$238.50 12.59 Million
64 Contrel Technology Co Ltd
TWO:8064
$591.01 Million NT$18.76 Billion NT$101.50 +1.00% -12.88% Taiwan Low: NT$37.25 / High: NT$172.50 117.49 Million
65 ECOVE Environment Corp
TWO:6803
$585.97 Million NT$18.60 Billion NT$256.00 -0.78% -2.29% Taiwan Low: NT$256.00 / High: NT$309.50 1.66 Million
66 Nova Technology
TWO:6613
$571.12 Million NT$18.13 Billion NT$233.00 -0.64% -7.17% Taiwan Low: NT$166.50 / High: NT$390.00 5.05 Million
67 Baotek Industrial Materials Ltd
TWO:5340
$566.74 Million NT$17.99 Billion NT$92.30 +4.77% +8.21% Taiwan Low: NT$47.60 / High: NT$134.00 238.17 Million
68 Group Up Industrial Co., Ltd.
TWO:6664
$566.11 Million NT$17.97 Billion NT$295.50 -0.67% -9.22% Taiwan Low: NT$238.00 / High: NT$480.00 7.39 Million
69 Tai-Tech Advanced Electronics Co Ltd
TWO:3357
$562.57 Million NT$17.86 Billion NT$175.00 +0.57% -9.56% Taiwan Low: NT$139.00 / High: NT$348.00 29.89 Million
70 First Hi-tec Enterprise Co Ltd
TWO:5439
$558.02 Million NT$17.71 Billion NT$190.50 +2.42% -11.19% Taiwan Low: NT$185.50 / High: NT$438.50 34.87 Million
71 Taiwan Chinsan Electronic Industrial Co Ltd
TWO:8042
$542.48 Million NT$17.22 Billion NT$133.00 +9.92% +0.00% Taiwan Low: NT$38.95 / High: NT$210.50 363.99 Million
72 Gloria Material Technology
TWO:5009
$530.00 Million NT$16.82 Billion NT$30.70 -0.97% -7.95% Taiwan Low: NT$30.50 / High: NT$40.15 46.02 Million
73 Anpec Electronics
TWO:6138
$529.35 Million NT$16.80 Billion NT$227.00 -1.94% -8.65% Taiwan Low: NT$209.50 / High: NT$440.00 11.88 Million
74 Allied Circuit Co Ltd
TWO:8155
$525.62 Million NT$16.68 Billion NT$267.50 +4.09% -4.63% Taiwan Low: NT$148.50 / High: NT$456.50 14.44 Million
75 M31 Technology Corp
TWO:6643
$521.39 Million NT$16.55 Billion NT$396.00 +3.39% -7.04% Taiwan Low: NT$367.00 / High: NT$697.00 14.67 Million
76 Good Finance Securities Co Ltd
TWO:6021
$505.31 Million NT$16.04 Billion NT$52.00 -1.89% -5.97% Taiwan Low: NT$24.60 / High: NT$58.00 14.67 Million
77 Medigen Vaccine Biologics
TWO:6547
$503.37 Million NT$15.98 Billion NT$48.60 +2.10% -1.62% Taiwan Low: NT$33.75 / High: NT$68.10 60.24 Million
78 IntelliEPI Cayman
TWO:4971
$500.13 Million NT$15.87 Billion NT$397.00 +2.06% -12.17% Taiwan Low: NT$151.50 / High: NT$872.00 31.91 Million
79 E&R Engineering
TWO:8027
$492.89 Million NT$15.64 Billion NT$150.00 +0.67% -12.54% Taiwan Low: NT$83.70 / High: NT$293.00 52.24 Million
80 Concord Securities Co Ltd
TWO:6016
$489.14 Million NT$15.53 Billion NT$20.10 -0.50% -8.84% Taiwan Low: NT$12.45 / High: NT$36.00 85.08 Million
81 Quanta Storage
TWO:6188
$478.83 Million NT$15.20 Billion NT$54.60 -1.80% -11.79% Taiwan Low: NT$54.60 / High: NT$118.00 19.73 Million
82 TrueLight
TWO:3234
$477.64 Million NT$15.16 Billion NT$136.00 +0.00% -19.76% Taiwan Low: NT$34.20 / High: NT$211.00 71.28 Million
83 TaiMed Biologics
TWO:4147
$472.49 Million NT$15.00 Billion NT$55.40 +0.73% -9.18% Taiwan Low: NT$47.10 / High: NT$72.60 15.93 Million
84 Materials Analysis Technology
TWO:3587
$470.94 Million NT$14.95 Billion NT$202.00 +1.25% -7.34% Taiwan Low: NT$180.50 / High: NT$396.00 9.85 Million
85 CCP Contact Probe Co Ltd
TWO:6217
$470.57 Million NT$14.94 Billion NT$131.00 -1.87% -15.48% Taiwan Low: NT$46.05 / High: NT$341.00 175.61 Million
86 Yieh United Steel
TWO:9957
$466.45 Million NT$14.81 Billion NT$5.65 -1.22% -0.53% Taiwan Low: NT$5.61 / High: NT$9.15 9.29 Million
87 Alltop Technology Co Ltd
TWO:3526
$461.04 Million NT$14.63 Billion NT$223.00 -0.45% -13.23% Taiwan Low: NT$223.00 / High: NT$395.00 5.88 Million
88 Concord International Securities Co Ltd
TWO:5864
$459.64 Million NT$14.59 Billion NT$32.10 -1.23% -10.58% Taiwan Low: NT$14.05 / High: NT$53.60 61.15 Million
89 Tatung System Technologies
TWO:8099
$452.43 Million NT$14.36 Billion NT$143.50 +6.69% +68.63% Taiwan Low: NT$55.00 / High: NT$143.50 27.14 Million
90 Soft-World International
TWO:5478
$450.80 Million NT$14.31 Billion NT$95.50 -0.10% -1.65% Taiwan Low: NT$94.00 / High: NT$115.00 1.42 Million
91 Gallant Precision Machining Co Ltd
TWO:5443
$449.75 Million NT$14.28 Billion NT$88.50 -1.34% -10.06% Taiwan Low: NT$78.30 / High: NT$137.50 36.64 Million
92 Synmosa Biopharma
TWO:4114
$443.83 Million NT$14.09 Billion NT$27.90 -0.53% -3.96% Taiwan Low: NT$27.90 / High: NT$33.60 22.95 Million
93 YeaShin International Development Co Ltd
TWO:5213
$440.02 Million NT$13.97 Billion NT$19.40 -2.02% -3.24% Taiwan Low: NT$19.40 / High: NT$27.40 4.75 Million
94 Jetwell Computer Co Ltd
TWO:3147
$435.62 Million NT$13.83 Billion NT$316.50 +3.43% +5.15% Taiwan Low: NT$152.50 / High: NT$350.00 37.82 Million
95 Usun Technology Co Ltd
TWO:3498
$434.90 Million NT$13.80 Billion NT$228.50 +6.78% -9.33% Taiwan Low: NT$45.35 / High: NT$263.50 107.57 Million
96 Viking Tech
TWO:3624
$426.99 Million NT$13.55 Billion NT$115.50 +1.76% -12.50% Taiwan Low: NT$39.40 / High: NT$176.50 439.76 Million
97 Gigasolar Materials
TWO:3691
$425.54 Million NT$13.51 Billion NT$147.00 +9.70% +23.01% Taiwan Low: NT$65.10 / High: NT$169.50 36.84 Million
98 APAC Opto Electronics
TWO:4908
$420.16 Million NT$13.34 Billion NT$170.50 +3.96% -13.67% Taiwan Low: NT$69.20 / High: NT$293.50 74.77 Million
99 Eris Technology
TWO:3675
$408.71 Million NT$12.97 Billion NT$244.50 +0.62% -11.09% Taiwan Low: NT$127.50 / High: NT$450.00 27.55 Million
100 Lanner Electronics
TWO:6245
$406.47 Million NT$12.90 Billion NT$88.00 +1.62% -10.48% Taiwan Low: NT$60.60 / High: NT$101.50 31.64 Million

How Taiwan OTC Exchange Companies Are Ranked by Market Cap

Taiwan OTC Exchange companies are ranked by market cap, the latest share price multiplied by shares outstanding, updated daily.