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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 week, 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
Week ofOpenHighLowCloseChangeVolume
Oct 26, 2026$0.385$0.4875$0.3775$0.41+70.83%9,316
Oct 19, 2026$0.245$0.245$0.24$0.24-2.04%396
Oct 12, 2026$0.3875$0.3875$0.1625$0.245-37.18%3,561
Oct 5, 2026$0.39$0.39$0.39$0.390.00%–
Sep 28, 2026$0.3675$0.39$0.3675$0.39+6.12%5,102
Sep 21, 2026$0.3675$0.3675$0.3675$0.36750.00%–
Sep 14, 2026$0.3675$0.3675$0.3675$0.36750.00%55
Sep 8, 2026$0.34$0.3675$0.34$0.3675-5.77%1,952
Aug 31, 2026$0.28$0.422$0.25$0.39+56.00%126,815
Aug 24, 2026$0.2339$0.3255$0.18$0.25+61.29%52,385
Aug 17, 2026$0.22$0.3999$0.155$0.155+82.14%477,659
Aug 10, 2026$0.08$0.0851$0.07$0.0851+15.00%37,637
Aug 3, 2026$0.0834$0.0834$0.045$0.074-11.27%31,047
Jul 27, 2026$0.0793$0.088$0.04$0.0834+5.17%30,402
Jul 20, 2026$0.0793$0.0793$0.0793$0.07930.00%41
Jul 13, 2026$0.0809$0.0809$0.0793$0.0793-10.60%863
Jul 6, 2026$0.0887$0.0887$0.0887$0.08870.00%43
Jun 29, 2026$0.0887$0.0887$0.0887$0.0887-9.49%300
Jun 22, 2026$0.1098$0.1098$0.0575$0.098-16.10%1,560
Jun 15, 2026$0.0999$0.1183$0.0532$0.1168+16.92%7,210
Jun 8, 2026$0.0999$0.0999$0.0999$0.09990.00%45
Jun 1, 2026$0.10$0.10$0.0651$0.0999-0.10%2,513
May 26, 2026$0.115$0.115$0.0757$0.10-13.04%18,872
May 18, 2026$0.08$0.1327$0.0779$0.115+0.88%59,553
May 11, 2026$0.064$0.116$0.0531$0.114+75.65%97,732
May 4, 2026$0.1175$0.1175$0.0566$0.0649-44.77%7,320
Apr 27, 2026$0.0975$0.1175$0.0975$0.1175+20.51%230
Apr 20, 2026$0.0985$0.0985$0.0751$0.0975-1.02%2,309
Apr 13, 2026$0.0985$0.0985$0.0985$0.09850.00%3
Apr 6, 2026$0.08$0.0985$0.0751$0.0985+23.12%21,391
Mar 30, 2026$0.08$0.08$0.08$0.08-11.11%251
Mar 23, 2026$0.098$0.098$0.09$0.09-8.16%5,002
Mar 16, 2026$0.098$0.098$0.098$0.0980.00%134
Mar 9, 2026$0.09$0.098$0.08$0.098-10.91%10,867
Mar 2, 2026$0.11$0.11$0.11$0.11+22.63%1,202
Feb 23, 2026$0.0897$0.0897$0.0897$0.08970.00%3
Feb 17, 2026$0.09$0.09$0.0897$0.0897+8.46%520
Feb 9, 2026$0.10$0.10$0.0827$0.0827-16.46%1,582
Feb 2, 2026$0.111$0.111$0.099$0.099-10.81%3,404
Jan 26, 2026$0.111$0.111$0.111$0.1110.00%31
Jan 20, 2026$0.11$0.118$0.0829$0.111+47.80%69,188
Jan 12, 2026$0.1199$0.1199$0.0751$0.0751-37.36%201
Jan 5, 2026$0.1199$0.1199$0.1199$0.11990.00%–
Dec 29, 2025$0.1199$0.1199$0.1199$0.11990.00%8
Dec 22, 2025$0.1199$0.1199$0.1199$0.11990.00%4
Dec 15, 2025$0.08$0.1199$0.08$0.1199+19.78%1,828
Dec 8, 2025$0.1111$0.1111$0.08$0.1001-9.90%27,995
Dec 1, 2025$0.1276$0.1298$0.10$0.1111-12.93%6,531
Nov 24, 2025$0.128$0.128$0.08$0.1276-0.31%25,431
Nov 17, 2025$0.15$0.15$0.0775$0.128-14.67%64,503
Nov 10, 2025$0.165$0.165$0.1329$0.15-9.09%5,015
Nov 3, 2025$0.165$0.165$0.165$0.1650.00%10

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%