NeoGenomics (NEO) Stock Trades Up, Here Is Why
NeoGenomics (NASDAQ: NEO) shares rose about 3.4% after the company said it launched the first FDA-approved immunohistochemistry companion diagnostic, PTEN IHC CDx, for prostate cancer. The test identifies PTEN protein loss to support eligibility for AstraZeneca’s TRUQAP. Shares later traded around $14.68, up 3.1% from the prior close.
How this was made

The 30-second read
Why it matters
By determining eligibility for AstraZeneca’s TRUQAP, the diagnostic can become a required step in the treatment pathway, potentially increasing testing demand and improving commercial traction for NeoGenomics’ IHC CDx offering.
Market read
A regulatory-linked product launch tied to a specific targeted therapy eligibility criterion is a concrete catalyst that can change expectations for near-term diagnostic utilization.
What to watch
No data is provided on test volume, reimbursement timing, competitive landscape for PTEN testing, or how quickly clinicians will switch to PTEN IHC CDx, which could cap follow-through.
Background
NeoGenomics launched PTEN IHC CDx, an FDA-approved immunohistochemistry companion diagnostic intended to identify PTEN protein loss in prostate adenocarcinoma patients.
Ticker impact
NeoGenomics shares jumped after launching the first FDA-approved PTEN IHC companion diagnostic for prostate cancer tied to TRUQAP eligibility decisions.
Likely supports continued upside bias versus peers, but follow-through may fade if the market already priced the approval and uptake timeline is uncertain.
The article cites a same-day catalyst (FDA-approved IHC CDx launch) and links it directly to eligibility for AstraZeneca’s TRUQAP, which can translate into testing volume. However, it provides no quantitative sales guidance or adoption metrics, limiting conviction on magnitude and duration.
Market effects
Reinforces the value of companion diagnostics in oncology and may lift sentiment for other diagnostics firms with CDx-linked therapies.
Primarily US-listed oncology diagnostics sentiment; limited direct regional spillover described.
Supports global TRUQAP patient-selection workflow, potentially affecting broader oncology diagnostics demand expectations.
Counterpoint
The move may be more about headline regulatory approval than near-term revenue impact, with adoption and reimbursement ramp taking longer than the market expects.
Key entities
- companyNeoGenomics
Oncology diagnostics company whose PTEN IHC CDx launch drove a same-day stock reaction.
- productPTEN IHC CDx
FDA-approved immunohistochemistry companion diagnostic for prostate cancer PTEN protein loss detection.
- therapyTRUQAP
AstraZeneca targeted therapy whose patient eligibility is linked to PTEN status via the companion diagnostic.
- companyAstraZeneca
Therapy provider whose TRUQAP eligibility depends on PTEN IHC CDx testing.


