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OmniAb, Inc. (OABIW) stock

OABIWNasdaqServices-Commercial Physical & Biological ResearchFiscal year ends December 31Also trades as OABI
Financials through Q3 FY2026, quarter ended Sep 30, 2026Last filing: 10-Q on Oct 30, 2026Score 10/309% above fair value
$0.41−0.01 (-2.38%)

Close on Oct 30, 2026Market cap $742.95MP/E –Yield –

Price history

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

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Close, Oct 30, 2026
$0.41
-2.38% on the day
52-week range
$0.04 – $0.4875
-15.9% from the high
Change over 52 weeks
+148.5%
From $0.165 on Oct 30, 2025
Average volume
8,647
Shares a day, last 90 sessions
DateOpenHighLowCloseChangeVolume
Oct 30, 2026$0.41$0.41$0.41$0.41-2.38%1,380
Oct 29, 2026$0.42$0.42$0.42$0.42-2.33%293
Oct 28, 2026$0.3899$0.4875$0.3899$0.43+10.97%5,695
Oct 27, 2026$0.3875$0.3875$0.3875$0.38750.00%2
Oct 26, 2026$0.385$0.3875$0.3775$0.3875+61.46%1,946
Oct 23, 2026$0.24$0.24$0.24$0.240.00%–
Oct 22, 2026$0.24$0.24$0.24$0.240.00%2
Oct 21, 2026$0.24$0.24$0.24$0.240.00%–
Oct 20, 2026$0.24$0.24$0.24$0.24-2.04%394
Oct 19, 2026$0.245$0.245$0.245$0.2450.00%–
Oct 16, 2026$0.245$0.245$0.245$0.2450.00%–
Oct 15, 2026$0.17$0.25$0.1625$0.245-13.58%1,819
Oct 14, 2026$0.2835$0.2835$0.2835$0.28350.00%2
Oct 13, 2026$0.2375$0.2835$0.2181$0.2835-26.84%307
Oct 12, 2026$0.3875$0.3875$0.3875$0.3875-0.64%1,433
Oct 9, 2026$0.39$0.39$0.39$0.390.00%–
Oct 8, 2026$0.39$0.39$0.39$0.390.00%–
Oct 7, 2026$0.39$0.39$0.39$0.390.00%–
Oct 6, 2026$0.39$0.39$0.39$0.390.00%–
Oct 5, 2026$0.39$0.39$0.39$0.390.00%–
Oct 2, 2026$0.3684$0.39$0.3684$0.39+6.12%5,102
Oct 1, 2026$0.3675$0.3675$0.3675$0.36750.00%–
Sep 30, 2026$0.3675$0.3675$0.3675$0.36750.00%–
Sep 29, 2026$0.3675$0.3675$0.3675$0.36750.00%–
Sep 28, 2026$0.3675$0.3675$0.3675$0.36750.00%–
Sep 25, 2026$0.3675$0.3675$0.3675$0.36750.00%–
Sep 24, 2026$0.3675$0.3675$0.3675$0.36750.00%–
Sep 23, 2026$0.3675$0.3675$0.3675$0.36750.00%–
Sep 22, 2026$0.3675$0.3675$0.3675$0.36750.00%–
Sep 21, 2026$0.3675$0.3675$0.3675$0.36750.00%–

Seasonality

OABIW return in each calendar month over the last 6 years, including dividends. The current month runs to the latest close.

YearJanFebMarAprMayJunJulAugSepOctNovDec
Average2.5%-4.1%-3.6%-1.1%-7.2%-10.4%27.6%42.1%-1.0%4.2%-19.8%28.6%
Months up3 of 51 of 51 of 51 of 51 of 51 of 54 of 53 of 51 of 53 of 61 of 54 of 5
2026-7.4%-19.2%-10.8%46.9%-14.9%-11.3%-6.0%211.8%41.3%11.6%
202516.2%29.4%-27.0%-6.2%-42.9%-13.5%67.5%-28.7%-17.8%-2.9%-22.7%-6.0%
202411.7%-17.0%-26.4%-11.9%-3.1%-23.8%0.6%-4.4%-7.9%-25.9%0.1%13.2%
202327.3%-1.2%-20.1%-27.5%52.5%26.2%32.5%15.7%-11.4%-29.2%-21.6%77.6%
2022-35.4%-12.3%66.4%-6.8%-27.6%-29.8%43.4%16.3%-9.1%51.8%-47.3%37.5%
202120.0%-7.6%21.0%