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Zenas BioPharma Inc. monthly returns

Zenas BioPharma Inc. has averaged 9.30% per month, positive in 59% of months. Month-by-month returns for Zenas BioPharma Inc. (ZBIO) below, through October 20, 2026 — the table lists the most recent months; the bar chart plots the last 5 years.

Average month
+9.3%
22 months
Best month
+62.1%
Jul 2025
Worst month
-49.4%
Jan 2026
Positive months
59%
of all months

Zenas BioPharma Inc. monthly returns#

Zenas BioPharma Inc. total return by month
MonthTotal return
Oct 2026
+4.5%
Sep 2026
-16.6%
Aug 2026
+2.8%
Jul 2026
+23.9%
Jun 2026
+37.9%
May 2026
-4.8%
Apr 2026
-1.2%
Mar 2026
-25.8%
Feb 2026
+43.4%
Jan 2026
-49.4%
Dec 2025
-6.5%
Nov 2025
+24.3%
Oct 2025
+40.8%
Sep 2025
+38.8%
Aug 2025
+1.8%
Jul 2025
+62.1%
Jun 2025
+1.8%
May 2025
-17.8%
Apr 2025
+46.6%
Mar 2025
+12.7%
Feb 2025
-12.6%
Jan 2025
-2.1%
Dec 2024
-28.8%
Nov 2024
-45.8%
Oct 2024
+25.5%

Monthly total return (since Jan 2025)#

Zenas BioPharma Inc. returns by calendar month#

Every month of every year since 2025, one tick per year on a shared scale; the dark bar is the month's average. Total returns, dividends reinvested.

October 2026 so far: +4.49% — 2nd of 2 Octobers since 2025 at the last close; the average October returned +40.8%.

Zenas BioPharma Inc. returns by calendar month since 2025
Month−65%0+65%AverageUp
Jan-25.7%0%
Feb+15.4%50%
Mar-6.6%50%
Apr+22.7%50%
May-11.3%0%
Jun+19.9%100%
Jul+43.0%100%
Aug+2.3%100%
Sep+11.1%50%
OctOctober 2026 so far: +4.5%+40.8%100%
Nov+24.3%100%
Dec-6.5%0%

Methodology#

Monthly returns are total returns (dividends reinvested), computed from ZBIO's split- and dividend-adjusted month-end closes. The table shows the most recent 120 months and the bar chart the most recent 60. See the year-by-year returns for the annual view. Past performance does not predict future returns; not investment advice.

FAQ#

What is Zenas BioPharma Inc.'s average monthly return?
Zenas BioPharma Inc. (ZBIO) has averaged about 9.30% per month, positive in roughly 59% of months. The best month was Jul 2025 (+62.1%) and the worst was Jan 2026 (-49.4%).

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