BillionToOne stock in focus before Monday open after Friday jump, JPMorgan conference next
NEW YORK, December 29, 2025, 05:02 ET — Premarket BillionToOne, Inc shares rose 3.4% to $89.30 at Friday’s close. The stock last traded at $89.40 in after-hours activity, trading that takes place after the regular session ends, according to Investing.com. Investing.com The newly public molecular diagnostics company heads into the final trading week of the year with few near-term catalysts before a big healthcare investor conference in January. Nasdaq BillionToOne’s most recent quarterly report set a high bar: the company posted sharp revenue growth and swung to operating profit, while issuing full-year revenue guidance, it said in a results release