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RARE
Ultragenyx Pharmaceutical Inc.
stock NASDAQ

At Close

Aug 20, 2026 3:59:56 PM EDT

25.33USD-3.487%(-0.91)3,831,208

21.80Bid 28.78Ask 6.98Spread

Pre-market

Aug 20, 2026 9:27:49 AM EDT

28.67USD+9.261%(+2.43)64,829

After-hours

Aug 20, 2026 4:32:30 PM EDT

25.46USD+0.552%(+0.14)565,605

OverviewOption ChainHistoricalExchangesShortsMore

Expiration Dates

Aug 21, 2026 Sep 18, 2026 Oct 16, 2026 Nov 20, 2026 Dec 18, 2026 Jan 15, 2027 Feb 19, 2027 Jan 21, 2028

ITM/OTM for Jan 21, 2028View All Dates

Calls ITM	Calls OTM	Puts ITM	Puts OTM
1,438	191	30	1,161

RARE Jan 21, 2028 Exp. - Volume by Strike

Puts

Calls

RARE Jan 21, 2028 Exp. - Open Interest by Strike

Puts

Calls

RARE Jan 21, 2028 Exp. - Max Pain @ $22.50

Puts

Calls

RARE Jan 21, 2028 Exp. - Option Chain

In the Money (ITM)

Calls

Strike	Price	Change	Vol	OI	Last	Contract Name
50.00 C	5.90	-26.25%	1	13	07-23	RARE280121C00050000
47.50 C	0	0%	0			RARE280121C00047500
45.00 C	7.00	+27.27%	1	2	07-24	RARE280121C00045000
42.50 C	6.49	0%	2	2	08-14	RARE280121C00042500
40.00 C	7.00	-44.18%	3	23	08-07	RARE280121C00040000
37.50 C	15.30	+155.00%	1	3	07-07	RARE280121C00037500
35.00 C	7.10	+8.40%	50	116	08-19	RARE280121C00035000
32.50 C	8.00	-42.86%	20	19	02-03	RARE280121C00032500
30.00 C	10.00	-32.20%	1	12	08-19	RARE280121C00030000
27.50 C	16.50	0%	1	1	12-22	RARE280121C00027500
25.00 C	11.40	-36.77%	1	38	08-19	RARE280121C00025000
22.50 C	11.10	-30.63%	1	1,007	08-07	RARE280121C00022500
20.00 C	13.50	+2.82%	2	111	08-13	RARE280121C00020000
17.50 C	12.03	-10.89%	1	1	05-28	RARE280121C00017500
15.00 C	13.89	+1.39%	1	21	02-11	RARE280121C00015000
12.50 C	23.88	+32.67%	1	33	06-30	RARE280121C00012500
10.00 C	16.01	+18.59%	3	13	04-29	RARE280121C00010000
7.50 C	18.55	+1.64%	10	107	02-06	RARE280121C00007500
5.00 C	20.40	+1.29%	10	105	02-06	RARE280121C00005000
2.50 C	30.58	+10.00%	4	2	06-30	RARE280121C00002500

Puts

Strike	Price	Change	Vol	OI	Last	Contract Name
50.00 P	33.20	+13.70%	3	3	03-24	RARE280121P00050000
47.50 P	21.85	0%	6	2	06-30	RARE280121P00047500
45.00 P	21.70	0%	2	1	06-25	RARE280121P00045000
42.50 P	0	0%	0			RARE280121P00042500
40.00 P	22.50	+40.63%	12	12	12-29	RARE280121P00040000
37.50 P	0	0%	0			RARE280121P00037500
35.00 P	0	0%	0			RARE280121P00035000
32.50 P	11.90	+8.58%	1	1	07-10	RARE280121P00032500
30.00 P	0	0%	0			RARE280121P00030000
27.50 P	8.78	-1.35%	1	11	07-14	RARE280121P00027500
25.00 P	11.00	+6.59%	1	10	03-09	RARE280121P00025000
22.50 P	7.75	+34.08%	1	1,011	08-06	RARE280121P00022500
20.00 P	6.00	+34.53%	3	13	08-06	RARE280121P00020000
17.50 P	4.91	+0.20%	1	3	05-05	RARE280121P00017500
15.00 P	3.40	-2.86%	1	47	08-05	RARE280121P00015000
12.50 P	3.00	+22.45%	4	75	03-31	RARE280121P00012500
10.00 P	1.60	0%	2	2	12-30	RARE280121P00010000
7.50 P	0	0%	0			RARE280121P00007500
5.00 P	0	0%	0			RARE280121P00005000
2.50 P	0	0%	0			RARE280121P00002500

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