HK IPOAI

TIANYU SEMI

02658Listed

半導體 · 天域半导体是一家专注于碳化硅外延片自制的制造商,产品用于电力半导体器件生产。

TIANYU SEMI (02658) is a listed Hong Kong IPO. This page brings together the offer price, entry fee, subscription timeline, grey-market context, allotment data and stage-based reference research in one place.

Offer price
HK$58.00
Final offer price
HK$58.00
One-lot win rate
10.0%

Predicted 16.6%

Proceeds
HK$1.74B
Public oversub.
60.6x

Lot / entry fee 50 shares · HK$3K · Sponsor CITIC Securities

  1. Offer starts Nov 27
  2. /Offer closes Dec 2
  3. /Grey market Dec 4
  4. /Listing Dec 5Now

SubscriptionTIANYU SEMI: subscription-stage reference

The subscription stage draws on the prospectus, sponsor record and early public filings. Allotment results and grey-market prints have not occurred yet.

Earlier stage
Reference rating
Cautious
Reference score
56.5
Forecast grey range
+5.1% – +86.9%

Pre-greyTIANYU SEMI: pre-grey-market reference

The pre-grey stage includes published allotment and public oversubscription data. Grey-market prints are not yet reflected here.

Earlier stage
Reference rating
Cautious
Reference score
60.6
Forecast grey range
+4.1% – +84.9%

Post-greyTIANYU SEMI: post-grey-market reference

The post-grey stage includes grey-market price and turnover observations. Listing-day results still follow official trading and company announcements.

Current
Reference rating
Cautious
Reference score
46.3
Forecast first-day range
-37.4% – +0.4%

Data updated · Sep 22, 2026, 12:02 HKT

View factors and research
Model forecastListing-day trendHigh cautionUp probability 40.0%
Published outcome check
First-day resultBig down-30.2%
Our call: Trend call valid
Covered 20/25 core factors
UsedMissingNot yet scorableN/A
Margin oversubscription
Medium heat
Offer size
Weaker quality
Cornerstone lockup
Low support
Post-lockup offer value
Weak scarcity
Recent same-rule trend
Positive trend
Recent same-type trend
Strong trend
Recent sector trend
—
Valuation
Weak appeal
Fundamental quality
Weak quality
Growth quality
Weak quality
Profitability
Weak quality
Cash runway
Weak quality
Customer concentration
Lower risk
Cornerstone quality
Strong support
Sponsor record
Strong record
Greenshoe arrangementGreenshoe: yes · 15%
Average support
Stabilizer track recordCLSA
Strong record
A-share pre-grey trend
—
A-share listing-day trend
—
Public oversubscription
High heat
One-lot win rate
Medium heat
International placing
High heat
Final pricing position
—
Actual greenshoe use
—
Grey market return
Poor trend

The assessment and probability ranges are informational only and are not investment advice.

AI Research Report

Post-grey
The analysis report for this IPO is being generated.

Last updated 18:35:03

HK$49.86
-14.03%
58.9853.9348.88HK$58.0016:1518:35
Listing price
HK$58.00
Open
—
High
—
Low
—
Bid / Ask
— / —
Volume
—
Turnover —View source

TIANYU SEMI: predicted allotment

Data updated · Sep 22, 2026, 14:40 HKT

Only key tiers are shown here. Full tiers and other allotment-pattern comparisons are on the allotment-odds page.

1 lot
16.6%

Predicted

Official
10.0%
A tail · Apply 1,600 lots
5.09 lots

Predicted

Official
15.19 lots
B head · Apply 1,800 lots
19.3 lots

Predicted

Official
28.8 lots
Top hammer
322.44 lots

Predicted

Official
381 lots
Most likely allotment pattern:Larger Pool A applications get less extra allotment;Pool B allotment is similar across tiersView full allotment-odds research

How to read this page

These answers combine this IPO’s published figures with clearly labeled model estimates. They explain how to read the modules above and are not investment advice.

What is the one-lot allotment rate for TIANYU SEMI?

Public allotment filings put the official one-lot rate at 10.0%, versus this site's pre-allotment model estimate of 16.6%. It is an observation for a 1-lot application, not a guaranteed result.

What is the difference between A-tail and B-head for TIANYU SEMI?

Based on the prospectus's legal application tiers, A-tail is 1,600 lots and B-head is 1,800 lots, representing about HK$4.6M and HK$5.2M of application principal. Official average allotment was 15.19 lots and 28.8 lots, versus pre-allotment model estimates of 5.09 lots and 19.3 lots. Pool A and Pool B are allocated separately, so application size alone does not show capital efficiency.

Can the grey-market price of TIANYU SEMI be treated as the listing price?

The compiled grey-market observation is about -14.5%, versus -30.2% on the listing day. Grey-market prints are pre-listing sentiment from public sources, not the official opening price.

Why does TIANYU SEMI have three reference ratings?

The current status is "Listed", so start with the post-grey section. Subscription, pre-grey and post-grey each use only the public information available at that point, so the score can change. Labels are high attention / neutral / caution only — informational comparison, not a buy or subscribe call.