Why Did BIAF Stock Surge 40% Today?

• BioAffinity tested CyPath Lung on a 71-year-old former smoker with multiple lung nodules.
• The non-invasive test confirmed that the lung nodules were likely due to inflammation rather than cancer.
• CyPath Lung test uses advanced testing and artificial intelligence to analyze cells in a patient’s sputum.

Shares of BioAffinity Technologies (BIAF) popped nearly 40% on Tuesday, after the biotech company shared a positive update from a new case study evaluating its non-invasive CyPath Lung test in evaluating lung cancer risk.

BioAffinity used the CyPath Lung test on a 71-year-old former smoker with multiple lung nodules, a condition that often leads to invasive procedures.

“In this case, the patient’s CyPath Lung result was negative, indicating a low likelihood of malignancy, and together both the patient and I were comfortable in waiting for a follow-up CT scan in three months,” said Daya Nadarajah, MD, the patient’s pulmonologist.

Follow-up CT scans showed that the suspicious nodules had resolved, confirming they were likely due to inflammation rather than cancer. CyPath Lung test uses advanced testing and artificial intelligence to analyze cells in a patient’s sputum and detect signs that could suggest cancer.

Record CyPath Lung Revenue 

On March 13, 2026, BIAF shares closed 98% higher after the company reported an 87% increase in full-year (FY) 2025 revenue from CyPath Lung, with test volumes rising 99%.

Its FY25 revenue fell to $6.2 million from $9.4 million in 2024, as it exited unprofitable services to focus on CyPath Lung. Net loss widened to $14.9 million, mainly due to higher clinical development costs, expanded sales efforts, and changes in warrant valuations. 

The company also raised $16.9 million to support growth. Looking ahead, it expects CyPath Lung unit sales to more than double in 2026, driving higher revenue.

How Did Stocktwits Users React?

Retail sentiment for BIAF on Stocktwits has remained ‘extremely bullish’ over the past week, amid ‘extremely high’ message volumes.

One user said that trading in the stock is a “long term play.”

Another user expects the stock to breach its $3 resistance.

Around 100 million shares changed hands at the time of writing, well above the average of 0.3 million, according to Stocktwits data.

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