Biotech: 283 stocks

Biotech companies develop new drugs, many with no drug on sale yet. One trial result or FDA decision can move a stock, and many raise cash by selling new shares.

As of Monday's close · Live for Pro members at the open

Biotech: 283 stocks
StockPriceQuality Score

Not scored, each with a page of its filings: ACXP, AKBA, ALDX, APVO, ATNM, ATOS, ATYR, BCDA, BMRA, BOLT, CALC, CELZ, CMND, COYA, CRIS, CSBR, CTOR, CTXR, DMAC, DRUG, DWTX, EDSA, ELOX, ENTA, FBLG, GOSS, GYRE, HLSQ, IBIO, ICCC, IGC, INO, KPRX, KPTI, LNAI, LSTA, LTRN, MBRX, MCRB, MDCX, MNOV, NEUP, NRC, OCGN, PLUR, PMCB, QNRX, RNAC, RTSN, SBFM, SHPH, SILO, SKYE, SLXN, SNTI, TCRT, TCRX, TECX, TPST, TRAW, TRXB, TTRX, VIVS, VRCA, and XBIT.

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Why biotech stocks are flat this week

Biotech stocks were nearly flat from Oct 19 to Oct 26, a median rise of 0.1% (283 stocks); the S&P 500 fell 0.1%.

What moved them

  • No single story: 144 of 283 rose and 138 fell this week.
3 stocks' stories, for Pro members. See them free →

Questions about biotech

Why are biotech stocks flat this week?

Biotech stocks were nearly flat from Oct 19 to Oct 26, a median rise of 0.1% (283 stocks); the S&P 500 fell 0.1%. No single story: 144 of 283 rose and 138 fell this week.

Which biotech stocks moved most this week?

Aardvark Therapeutics (AARD) fell 71%, Perspective Therapeutics (CATX) fell 45%, and Avalo Therapeutics (AVTX) fell 42%.

What are the biggest companies in biotech?

The biggest by market cap are Amgen (AMGN) at $242B, Gilead Sciences (GILD) at $195B, and Vertex Pharmaceuticals (VRTX) at $136B.

Which companies in biotech does Breakaway rank highest?

Halozyme Therapeutics (HALO) 21, Amneal Pharmaceuticals (AMRX) 20, and Rigel Pharmaceuticals (RIGL) 19, the highest Quality Scores of the 283. Breakaway ranks every stock by its Quality Score, which reads each company's numbers and its chart; the ranking is information, not advice, and each stock's page shows the reasons behind its score.

Our top-scored stocks' record: Oct 2021 to Sep 2026, before costs; recorded live since Sep 9 2026.

Breakaway publishes impersonal securities research and analytical tools: one formula, the same score for everyone. It is not personalized investment advice, and nothing here is a recommendation to buy or sell any security.

Market data from a licensed vendor. The age of every quote is shown on the page.

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