Products
Fees
Download
Promotions
Promotions
Welcome Rewards
Referral Program
US Pre-Market Options Trading
For Institutions
For Institutions
Corporate Services
Developers
Help
About
About
About Longbridge
License & Regulatory
Media Coverage
Join Us
Home
Discover
News & Info
Watchlist
Trade
LongbridgeAI
Quote List
Quote List
TDii
(002491.SZ)
Last Updated 00:00:00
News
Financials
Overview
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
·
04/20/2026 16:40
SZ
002647
-2.45%
SH
688041
+2.76%
SZ
002990
-1.85%
Wallstreetcn
·
04/20/2026 16:40
SZ
002647
-2.45%
SH
688041
+2.76%
SZ
002990
-1.85%
The three major A-share indices closed higher at midday, with the optical fiber concept surging
36Kr
·
04/20/2026 11:36
SZ
002491
0.00%
SZ
000586
+10.00%
SZ
301071
-2.42%
36Kr
·
04/20/2026 11:36
SZ
002491
0.00%
SZ
000586
+10.00%
SZ
301071
-2.42%
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
·
04/20/2026 09:34
SH
600522
+1.37%
SH
600487
+5.11%
SZ
002491
0.00%
Wallstreetcn
·
04/20/2026 09:34
SH
600522
+1.37%
SH
600487
+5.11%
SZ
002491
0.00%
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
·
04/19/2026 16:19
SH
600487
+5.11%
腾讯新闻 - 财经
·
04/19/2026 16:19
SH
600487
+5.11%
In half a day, the main funds increased their positions in the basic chemical sector and sold off the communication sector
36Kr
·
04/07/2026 11:48
SZ
002491
0.00%
SZ
000617
-4.02%
SH
688256
+8.40%
36Kr
·
04/07/2026 11:48
SZ
002491
0.00%
SZ
000617
-4.02%
SH
688256
+8.40%
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
·
03/24/2026 14:35
HK
06869
-2.41%
SH
601869
-0.40%
SZ
159583
-0.92%
Wallstreetcn
·
03/24/2026 14:35
HK
06869
-2.41%
SH
601869
-0.40%
SZ
159583
-0.92%
History is always surprisingly similar: Can the optical fiber supercycle continue? Capacity expansion is the biggest concern
Wallstreetcn
·
03/10/2026 21:17
HK
06869
-2.41%
SH
601869
-0.40%
SZ
300560
+0.98%
Wallstreetcn
·
03/10/2026 21:17
HK
06869
-2.41%
SH
601869
-0.40%
SZ
300560
+0.98%
December 17th Midday Review: The ChiNext Index rose 1.21% in half a day, with lithium mining and computing hardware stocks collectively strengthening
Wallstreetcn
·
12/17/2025 11:30
SZ
001203
-2.74%
SZ
002491
0.00%
SH
601869
-0.40%
Wallstreetcn
·
12/17/2025 11:30
SZ
001203
-2.74%
SZ
002491
0.00%
SH
601869
-0.40%
TDii: Net profit in the third quarter was 24.134 million yuan, a year-on-year decrease of 48.70%
Zhitong
·
10/29/2025 19:44
SZ
002491
0.00%
Zhitong
·
10/29/2025 19:44
SZ
002491
0.00%
Solid-state battery concept stocks surged and then fell back, TDii is close to the limit down
Zhitong
·
09/23/2025 10:14
SZ
301152
-2.57%
SZ
002491
0.00%
SH
603810
-0.64%
Zhitong
·
09/23/2025 10:14
SZ
301152
-2.57%
SZ
002491
0.00%
SH
603810
-0.64%