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Healthcare

Leaked Melanoma-Vaccine Data Sends Moderna (NASDAQ:MRNA) Plunging on the S&P 500

Moderna (NASDAQ:MRNA) plunged on Thursday, 22 October 2026, closing down 17.57% at $202.63, the worst performer in the S&P 500, after shares fell as much as 26% intraday on volume well above average. The move followed the leak of personalized melanoma-vaccine data on a …

Nitish Kishor | 23 October 2026

Why Avalo Therapeutics (NASDAQ:AVTX) Plunged on the Russell 2000: A Rival AbbVie Trial Raised Questions

● AbbVie's lutikizumab showed only a modest benefit in hidradenitis suppurativa.

Nitish Kishor | 23 October 2026

Why Biohaven (NYSE:BHVN) Soared on the Russell 2000: The FDA Accepted Its Resubmitted Vyglxia Application

● The FDA accepted the resubmission as a complete response to its November 4, 2025 letter.

Nitish Kishor | 23 October 2026

Why Estrella Immunopharma (NASDAQ:ESLA) Soared on the Nasdaq Composite in a Micro-Cap Biotech Rally

● The stock reached about $0.77 after hours, which is not a closing price.

Nitish Kishor | 23 October 2026

Why Healthcare Services Group (NASDAQ:HCSG) Jumped on the S&P SmallCap 600 After a Big Profit Beat

● Adjusted earnings of $0.36 a share beat the $0.24 forecast.

Nitish Kishor | 23 October 2026

Why Korro Bio (NASDAQ:KRRO) Rocketed on the Russell 2000 as It Unveiled Preclinical AATD Data

● KRRO-111 achieved high levels of editing of SERPINA1 messenger RNA in preclinical studies.

Nitish Kishor | 23 October 2026

Why LeonaBio (NASDAQ:LONA) Slid on the Nasdaq Composite in a Rough Day for Micro-Cap Biotech

● The micro-cap biotech has a market value of roughly $50 million.

Nitish Kishor | 23 October 2026

Why MoonLake Immunotherapeutics (NASDAQ:MLTX) Surged on the Russell 2000 After AbbVie's Weak Skin Data

● AbbVie's lutikizumab showed only a modest benefit over placebo.

Nitish Kishor | 23 October 2026

Why Nanobiotix (NASDAQ:NBTX) Jumped on the Nasdaq Composite as Health Care Shone

● The figure is a snapshot rather than a closing price.

Nitish Kishor | 23 October 2026

Why Profusa (NASDAQ:PFSA) Soared on the Nasdaq Composite Against a Tech Selloff

● The figure is an intraday snapshot rather than a confirmed close.

Nitish Kishor | 23 October 2026
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