TDii(002491.SZ)

Last Updated 00:00:00
longbridge loading

Shanghai Composite rises 0.5%, Beijing Exchange 50 surges 3%, optical fiber concepts explode, AI computing power active, Hang Seng Tech Index up 0.3%, semiconductors pull up

Wallstreetcn·
SZ
002647
+2.18%
SH
688041
+2.43%
SZ
002990
-0.58%
Wallstreetcn·
SZ
002647
+2.18%
SH
688041
+2.43%
SZ
002990
-0.58%

The three major A-share indices closed higher at midday, with the optical fiber concept surging

36Kr·
SZ
002491
+1.69%
SZ
000586
-2.04%
SZ
301071
+6.39%
36Kr·
SZ
002491
+1.69%
SZ
000586
-2.04%
SZ
301071
+6.39%

Fiber optic concept stocks rallied collectively, with TDii hitting the limit up. YOFC, ZTT, and HTGD also rose. The fiber optic industry has shown a trend of simultaneous growth in product volume and prices this year. A representative from a Jiangsu-based fiber optic production company stated that first-quarter production and sales volumes increased by nearly five times year-on-year, while product prices surged significantly. G.657.A2 fiber prices jumped from 32 yuan per core kilometer last year to 240 yuan this year, representing a 650% increase

Wallstreetcn·
SH
600522
+5.84%
SH
600487
+2.46%
SZ
002491
+1.69%
Wallstreetcn·
SH
600522
+5.84%
SH
600487
+2.46%
SZ
002491
+1.69%

Domestic optical fibers see a global "explosion in orders," with some product prices soaring by 650%, and orders extending into the first quarter of next year

腾讯新闻 - 财经·
SH
600487
+2.46%
腾讯新闻 - 财经·
SH
600487
+2.46%

In half a day, the main funds increased their positions in the basic chemical sector and sold off the communication sector

36Kr·
SZ
002491
+1.69%
SZ
000617
-1.28%
SH
688256
+5.29%
36Kr·
SZ
002491
+1.69%
SZ
000617
-1.28%
SH
688256
+5.29%

A-share fiber optic concept continues to rise, YOFC hits the daily limit, TDii previously hit the daily limit, HTGD, SDGI, NanjingHuamai Technology, ZTT and others followed the rise

Wallstreetcn·
HK
06869
-0.17%
SH
601869
-0.49%
SZ
159583
+0.65%
Wallstreetcn·
HK
06869
-0.17%
SH
601869
-0.49%
SZ
159583
+0.65%

History is always surprisingly similar: Can the optical fiber supercycle continue? Capacity expansion is the biggest concern

Wallstreetcn·
HK
06869
-0.17%
SH
601869
-0.49%
SZ
300560
-1.66%
Wallstreetcn·
HK
06869
-0.17%
SH
601869
-0.49%
SZ
300560
-1.66%

December 17th Midday Review: The ChiNext Index rose 1.21% in half a day, with lithium mining and computing hardware stocks collectively strengthening

Wallstreetcn·
SZ
001203
-0.52%
SZ
002491
+1.69%
SH
601869
-0.49%
Wallstreetcn·
SZ
001203
-0.52%
SZ
002491
+1.69%
SH
601869
-0.49%

TDii: Net profit in the third quarter was 24.134 million yuan, a year-on-year decrease of 48.70%

Zhitong·
SZ
002491
+1.69%
Zhitong·
SZ
002491
+1.69%

Solid-state battery concept stocks surged and then fell back, TDii is close to the limit down

Zhitong·
SZ
301152
-1.46%
SZ
002491
+1.69%
SH
603810
-1.80%
Zhitong·
SZ
301152
-1.46%
SZ
002491
+1.69%
SH
603810
-1.80%
© 2026 Longbridge｜Disclaimer