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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 Sep 18, 2026View All Dates

Calls ITM	Calls OTM	Puts ITM	Puts OTM
186	7,601	3,370	20,416

RARE Sep 18, 2026 Exp. - Volume by Strike

Puts

Calls

RARE Sep 18, 2026 Exp. - Open Interest by Strike

Puts

Calls

RARE Sep 18, 2026 Exp. - Max Pain @ $30.00

Puts

Calls

RARE Sep 18, 2026 Exp. - Option Chain

In the Money (ITM)

Calls

Strike	Price	Change	Vol	OI	Last	Contract Name
50.00 C	0.50	+19.05%	32	1,018	08-19	RARE260918C00050000
47.50 C	0.55	-76.09%	13	16	08-19	RARE260918C00047500
45.00 C	0.70	+55.56%	31	2,407	08-19	RARE260918C00045000
42.50 C	2.75	-27.63%	1	2	07-28	RARE260918C00042500
40.00 C	0.99	-17.50%	92	1,297	08-19	RARE260918C00040000
37.50 C	1.45	-49.30%	120	158	08-17	RARE260918C00037500
35.00 C	1.65	+10.00%	37	303	08-19	RARE260918C00035000
32.50 C	2.10	-8.70%	60	863	08-19	RARE260918C00032500
30.00 C	2.75	+5.77%	87	1,463	08-19	RARE260918C00030000
27.50 C	3.60	+9.09%	7	74	08-19	RARE260918C00027500
25.00 C	4.60	+3.60%	17	161	08-19	RARE260918C00025000
22.50 C	6.00	-53.13%	2	4	08-18	RARE260918C00022500
20.00 C	0	0%	0			RARE260918C00020000
17.50 C	17.90	+98.89%	18	21	06-30	RARE260918C00017500
15.00 C	0	0%	0			RARE260918C00015000
12.50 C	0	0%	0			RARE260918C00012500

Puts

Strike	Price	Change	Vol	OI	Last	Contract Name
50.00 P	20.00	+14.94%	1	1	07-14	RARE260918P00050000
47.50 P	0	0%	0			RARE260918P00047500
45.00 P	18.00	0%	16	16	07-16	RARE260918P00045000
42.50 P	16.40	0%	8	8	07-16	RARE260918P00042500
40.00 P	0	0%	0			RARE260918P00040000
37.50 P	0	0%	0			RARE260918P00037500
35.00 P	10.50	+1.94%	12	74	08-17	RARE260918P00035000
32.50 P	8.95	+11.88%	1,000	398	07-22	RARE260918P00032500
30.00 P	6.53	-5.36%	1	2,829	08-19	RARE260918P00030000
27.50 P	4.60	-4.17%	1	44	08-19	RARE260918P00027500
25.00 P	3.24	-10.99%	8	2,750	08-19	RARE260918P00025000
22.50 P	2.35	+6.82%	16	1,872	08-18	RARE260918P00022500
20.00 P	1.15	-4.17%	82	326	08-19	RARE260918P00020000
17.50 P	0.52	-13.33%	3	836	08-19	RARE260918P00017500
15.00 P	0.10	-58.33%	2	13,399	08-18	RARE260918P00015000
12.50 P	0.10	+100.00%	3	1,233	08-19	RARE260918P00012500

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