Zhengye Biotechnology (ZYBT) Stock Analysis & Price (Updated Oct 16, 2026, 4:00 PM ET)

Updated Oct 16, 2026, 4:00 PM ET

What changed since yesterday

ZYBT slides 6.7% to $1.40. Closed at $1.40, -6.67% vs the prior close of $1.50. Day range $1.38–$1.57, opened at $1.50.

Last close$1.40-6.67%

Day range1.38–1.57

Open1.50

Volume81.29K

52-week range0.62–8.01

Avg volume (20d)1.73M

ZYBT daily analysis — what happened

A plain-English, data-only note written after every US trading day. Newest first; older days stay archived below.

Oct 16, 2026 — ZYBT slides 6.7% to $1.40

Closed at $1.40, -6.67% vs the prior close of $1.50. Day range $1.38–$1.57, opened at $1.50.
Volume was 81.29K shares, 0.1x its 50-day average of 1.11M — lighter than usual.
Price is -8.1% vs its 50-day average ($1.52) and +22.7% vs its 200-day average ($1.14).
52-week range $0.62–$8.01; today's close sits at 11% of that range, 82.5% below the 52-week high.

Oct 15, 2026 — ZYBT dips 2.0% to $1.50

Closed at $1.50, -1.96% vs the prior close of $1.53. Day range $1.48–$1.66, opened at $1.50.
Volume was 67.70K shares, 0.0x its 50-day average of 2.54M — lighter than usual.
Price is -2.4% vs its 50-day average ($1.54) and +31.6% vs its 200-day average ($1.14).
52-week range $0.62–$8.01; today's close sits at 12% of that range, 81.3% below the 52-week high.

Oct 14, 2026 — ZYBT jumps 3.4% to $1.53

Closed at $1.53, +3.38% vs the prior close of $1.48. Day range $1.44–$1.72, opened at $1.45.
Volume was 255.30K shares, 0.1x its 50-day average of 2.54M — lighter than usual.
Price is -1.6% vs its 50-day average ($1.55) and +34.4% vs its 200-day average ($1.14).
52-week range $0.62–$8.01; today's close sits at 12% of that range, 80.9% below the 52-week high.

Oct 13, 2026 — ZYBT slides 12.4% to $1.48

Closed at $1.48, -12.43% vs the prior close of $1.69. Day range $1.43–$1.75, opened at $1.43.
Volume was 425.30K shares, 0.2x its 50-day average of 2.53M — lighter than usual.
Price is -4.5% vs its 50-day average ($1.55) and +30.0% vs its 200-day average ($1.14).
52-week range $0.62–$8.01; today's close sits at 12% of that range, 81.5% below the 52-week high.

Oct 12, 2026 — ZYBT dips 2.3% to $1.69

Closed at $1.69, -2.31% vs the prior close of $1.73. Day range $1.38–$1.85, opened at $1.82.
Volume was 2.93M shares, 1.2x its 50-day average of 2.48M.
Price is +9.3% vs its 50-day average ($1.55) and +48.4% vs its 200-day average ($1.14).
52-week range $0.62–$8.01; today's close sits at 15% of that range, 78.9% below the 52-week high.

Oct 9, 2026 — ZYBT jumps 50.4% to $1.73, a 1-month high on 16.3x normal volume

Closed at $1.73, +50.43% vs the prior close of $1.15. Day range $1.12–$2.89, opened at $1.19.
Volume was 30.60M shares, 16.3x its 50-day average of 1.87M — unusually heavy trading.
Price is +12.4% vs its 50-day average ($1.54) and +51.8% vs its 200-day average ($1.14).
52-week range $0.62–$8.01; today's close sits at 15% of that range, 78.4% below the 52-week high.

Oct 8, 2026 — ZYBT dips 0.9% to $1.15

Closed at $1.15, -0.86% vs the prior close of $1.16. Day range $1.12–$1.17, opened at $1.13.
Volume was 10.30K shares, 0.0x its 50-day average of 1.88M — lighter than usual.
Price is -24.9% vs its 50-day average ($1.53) and +0.9% vs its 200-day average ($1.14).
52-week range $0.62–$8.01; today's close sits at 7% of that range, 85.6% below the 52-week high.

Oct 7, 2026 — ZYBT jumps 4.5% to $1.16

Closed at $1.16, +4.50% vs the prior close of $1.11. Day range $1.09–$1.18, opened at $1.09.
Volume was 31.70K shares, 0.0x its 50-day average of 1.88M — lighter than usual.
Price is -24.4% vs its 50-day average ($1.53) and +1.4% vs its 200-day average ($1.14).
52-week range $0.62–$8.01; today's close sits at 7% of that range, 85.5% below the 52-week high.

Oct 6, 2026 — ZYBT slides 6.7% to $1.11, a 1-month low, 3 down days in a row

Closed at $1.11, -6.72% vs the prior close of $1.19. Day range $1.11–$1.20, opened at $1.11.
Volume was 44.40K shares, 0.0x its 50-day average of 1.90M — lighter than usual.
Price is -27.8% vs its 50-day average ($1.54) and -3.2% vs its 200-day average ($1.15).
52-week range $0.62–$8.01; today's close sits at 7% of that range, 86.1% below the 52-week high.
That makes 3 straight losses.

Oct 5, 2026 — ZYBT slides 4.0% to $1.19, a 1-month low

Closed at $1.19, -4.03% vs the prior close of $1.24. Day range $1.18–$1.27, opened at $1.23.
Volume was 14.60K shares, 0.0x its 50-day average of 1.93M — lighter than usual.
Price is -23.0% vs its 50-day average ($1.55) and +3.5% vs its 200-day average ($1.15).
52-week range $0.62–$8.01; today's close sits at 8% of that range, 85.1% below the 52-week high.

Oct 2, 2026 — ZYBT dips 1.6% to $1.24

Closed at $1.24, -1.59% vs the prior close of $1.26. Day range $1.20–$1.26, opened at $1.26.
Volume was 15.90K shares, 0.0x its 50-day average of 2.24M — lighter than usual.
Price is -20.3% vs its 50-day average ($1.56) and +7.5% vs its 200-day average ($1.15).
52-week range $0.62–$8.01; today's close sits at 8% of that range, 84.5% below the 52-week high.

Every SEC filing by or about ZYBT in the last 120 days, explained in plain English. Updated daily, with a same-day refresh for new filings.

Aug 6, 2026 · Form 6-K — Report from a foreign company (6-K)

Report from a foreign company (6-K) — news it published at home

Jul 21, 2026 · Form 6-K — Report from a foreign company (6-K)

Report from a foreign company (6-K) — news it published at home

Jun 25, 2026 · Form 3 — New insider holdings