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Avantor, Inc. (AVTR) stock

AVTRNYSELaboratory Analytical InstrumentsFiscal year ends December 31
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Oct 28, 2026Score 4/3019% below fair value
$16.05−0.63 (-3.78%)

Close on Oct 30, 2026Market cap $10.86BP/E –Yield –

Price history

Avantor share prices for every trading day, newest first. Adjusted for stock splits, not for dividends.

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Close, Oct 30, 2026
$16.05
-3.78% on the day
52-week range
$7.27 – $17.45
-8.0% from the high
Change over 52 weeks
+45.2%
From $11.05 on Oct 30, 2025
Average volume
9.65M
Shares a day, last 90 sessions
DateOpenHighLowCloseChangeVolume
Oct 30, 2026$16.74$16.80$15.85$16.05-3.78%9,733,866
Oct 29, 2026$16.65$16.73$16.32$16.68-0.06%11,218,120
Oct 28, 2026$16.41$17.22$16.17$16.69-2.57%29,719,220
Oct 27, 2026$17.29$17.39$17.07$17.13-0.93%10,689,690
Oct 26, 2026$17.14$17.40$17.03$17.290.00%6,743,175
Oct 23, 2026$17.10$17.32$16.90$17.29+0.82%7,873,199
Oct 22, 2026$17.29$17.45$16.97$17.15-0.64%12,740,520
Oct 21, 2026$16.45$17.33$16.45$17.26+3.85%11,634,090
Oct 20, 2026$16.38$16.83$16.24$16.62+2.03%9,148,366
Oct 19, 2026$16.42$16.55$16.19$16.29-0.79%9,314,074
Oct 16, 2026$16.10$16.45$15.95$16.42+2.05%29,356,750
Oct 15, 2026$15.83$16.26$15.70$16.09+2.48%5,968,952
Oct 14, 2026$15.61$16.00$15.61$15.70+0.96%8,051,745
Oct 13, 2026$15.53$15.66$15.44$15.55+0.39%4,645,931
Oct 12, 2026$15.71$15.76$15.39$15.49-1.15%5,918,767
Oct 9, 2026$15.45$15.76$15.42$15.67+1.82%4,244,061
Oct 8, 2026$15.22$15.42$14.96$15.39+0.26%12,125,920
Oct 7, 2026$15.38$15.52$15.04$15.35-0.52%6,007,519
Oct 6, 2026$15.95$16.38$15.42$15.43-2.40%11,387,930
Oct 5, 2026$15.34$15.87$15.24$15.81+3.06%8,180,402
Oct 2, 2026$15.11$15.38$14.97$15.34+2.06%6,149,101
Oct 1, 2026$14.94$15.20$14.57$15.03-0.13%10,567,380
Sep 30, 2026$15.16$15.36$15.05$15.05-1.25%7,378,761
Sep 29, 2026$15.18$15.42$15.06$15.24-0.33%6,911,475
Sep 28, 2026$15.10$15.41$15.07$15.29+0.26%9,436,674
Sep 25, 2026$15.33$15.36$15.08$15.25-0.85%6,529,468
Sep 24, 2026$14.72$15.43$14.67$15.38+4.20%7,719,653
Sep 23, 2026$14.95$15.14$14.72$14.76-1.20%10,569,470
Sep 22, 2026$15.13$15.32$14.91$14.94-1.06%11,164,180
Sep 21, 2026$15.39$15.59$15.04$15.10-2.71%9,194,158

Seasonality

AVTR return in each calendar month over the last 8 years, including dividends. The current month runs to the latest close.

YearJanFebMarAprMayJunJulAugSepOctNovDec
Average1.5%-8.6%-6.5%1.4%3.9%1.3%10.8%0.0%-5.0%-3.5%8.7%2.3%
Months up5 of 72 of 72 of 73 of 75 of 75 of 85 of 85 of 83 of 83 of 84 of 75 of 7
2026-4.7%-17.1%-13.4%3.3%12.6%8.6%39.2%5.5%3.5%6.6%
20255.7%-25.0%-2.9%-19.9%-0.6%4.3%-0.1%0.2%-7.3%-5.3%-0.8%-2.3%
20240.7%7.2%3.8%-5.2%-0.6%-12.0%26.2%-3.4%0.1%-13.5%-5.9%0.0%
202313.3%2.0%-13.3%-7.9%2.4%3.0%0.1%5.3%-2.6%-17.3%21.5%7.8%
2022-11.4%-7.1%-2.5%-5.7%0.5%-2.9%-6.7%-14.2%-21.3%2.9%10.5%-5.3%
20214.8%-5.5%3.8%10.8%0.3%10.5%5.8%4.9%3.7%-1.3%-2.2%6.7%
20201.8%-14.7%-20.7%34.6%12.8%-10.4%29.9%2.2%-0.4%3.5%17.2%3.2%
20199.1%-7.9%-0.5%-16.0%-3.3%20.5%6.0%