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AMPH
Amphastar Pharmaceuticals, Inc.
stock NASDAQ

At Close

Jul 29, 2026 3:59:53 PM EDT

20.58USD+2.159%(+0.43)321,672

0.00Bid 0.00Ask 0.00Spread

Pre-market

0.00USD-100.000%(-20.15)0

After-hours

Jul 29, 2026 4:37:30 PM EDT

19.44USD-5.550%(-1.14)329

OverviewOption ChainHistoricalExchangesShortsMore

Expiration Dates

Aug 21, 2026 Sep 18, 2026 Dec 18, 2026 Mar 19, 2027

ITM/OTM for Aug 21, 2026View All Dates

Calls ITM	Calls OTM	Puts ITM	Puts OTM
1,210	334	2	123

AMPH Aug 21, 2026 Exp. - Volume by Strike

Puts

Calls

AMPH Aug 21, 2026 Exp. - Open Interest by Strike

Puts

Calls

AMPH Aug 21, 2026 Exp. - Max Pain @ $20.00

Puts

Calls

AMPH Aug 21, 2026 Exp. - Option Chain

In the Money (ITM)

Calls

Strike	Price	Change	Vol	OI	Last	Contract Name
40.00 C	0	0%	0			AMPH260821C00040000
35.00 C	0	0%	0			AMPH260821C00035000
30.00 C	0	0%	0			AMPH260821C00030000
25.00 C	0.30	+100.00%	4	4	07-20	AMPH260821C00025000
22.50 C	0.70	+27.27%	355	330	07-20	AMPH260821C00022500
20.00 C	1.30	+21.50%	1	1,210	07-28	AMPH260821C00020000
17.50 C	0	0%	0			AMPH260821C00017500
15.00 C	0	0%	0			AMPH260821C00015000
12.50 C	0	0%	0			AMPH260821C00012500
10.00 C	0	0%	0			AMPH260821C00010000
7.50 C	0	0%	0			AMPH260821C00007500
5.00 C	0	0%	0			AMPH260821C00005000
2.50 C	0	0%	0			AMPH260821C00002500

Puts

Strike	Price	Change	Vol	OI	Last	Contract Name
40.00 P	0	0%	0			AMPH260821P00040000
35.00 P	0	0%	0			AMPH260821P00035000
30.00 P	0	0%	0			AMPH260821P00030000
25.00 P	4.90	0%	1	1	06-26	AMPH260821P00025000
22.50 P	3.10	0%	1	1	06-26	AMPH260821P00022500
20.00 P	1.90	0%	1	1	06-29	AMPH260821P00020000
17.50 P	0.60	-45.45%	10	12	07-13	AMPH260821P00017500
15.00 P	0.30	-33.33%	1	2	07-06	AMPH260821P00015000
12.50 P	0	0%	0			AMPH260821P00012500
10.00 P	0.05	-80.77%	41	71	07-27	AMPH260821P00010000
7.50 P	0.05	0%	11	11	07-24	AMPH260821P00007500
5.00 P	0.10	+100.00%	14	26	07-24	AMPH260821P00005000
2.50 P	0	0%	0			AMPH260821P00002500

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