OIIM O2Micro International Limited
NASDAQNo longer listedAmerican depositary shares (ADR)
OIIM was the NASDAQ ticker symbol of O2Micro International Limited (ADR). It no longer appears in current US listing files, which usually means the security was delisted, acquired, merged, or moved to a new symbol.
OIIM at a glance
- Symbol
- OIIM
- Company / issuer
- O2Micro International Limited
- Security type
- American depositary shares (ADR)
- Last exchange
- NASDAQ
- Status
- No longer listed
- Seen in listing files
- Jan 2015 – Feb 2023
- Sector
- Technology
- Industry
- Semiconductors
- Country
- Cayman Islands
- Last reported market cap
- $140.4 million (Feb 2023)
OIIM ticker history
All listing names we have recorded under the symbol OIIM, from periodic snapshots of US exchange listing files.
| Name | Security | First seen | Last seen |
|---|---|---|---|
| O2Micro International Limited | American Depositary Shares | Jan 2015 | Feb 2023 |
Snapshots have gaps (notably 2018–2021, and 2015–2021 for NYSE listings), so the actual delisting date may be later than the last-seen date.
Frequently asked questions
What company has the ticker symbol OIIM?
OIIM was the ticker symbol of O2Micro International Limited on NASDAQ.
Is OIIM still trading?
No. OIIM does not appear in current US exchange listings as of Sep 2026; it was last seen in our listing snapshots in Feb 2023.
Which exchange was OIIM listed on?
OIIM was listed on NASDAQ.
Nearby symbols
OHRP Ohr Pharmaceutical, Inc.OI OOIA Invesco Municipal Income Opportunities TrustOIBR Oi S.A.OIG Orion180 Insurance Group Inc.OII Oceaneering International, Inc.OILT Texas Capital Texas Oil Index ETFOIM OneIM Acquisition Corp.OIO OIO GroupOIS Oil States International, Inc.OKE ONEOK, Inc.OKLO Oklo Inc.