BMRN · Option chain

BMRN Option Chain

Every listed BMRN strike within 25% of spot, across the next 5 expirations — calls and puts side by side with last price, volume and open interest, plus the closing bid and ask.

Open interest and pricing as of the close on 2026-09-03. Recomputed every morning before the open.

Spot

$66.43

Call open interest

24,218

Put open interest

7,714

Put/call (volume)

0.16

190 contracts changed hands across these expirations — 164 calls against 26 puts. Calls outtraded puts 6.31 to one.

Sep 18, 202613 days

call OI 6,755 · put OI 1,733

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	16.00 / 18.60	—	8	50	—	0.00 / 1.00	—	66
—	13.50 / 16.20	—	89	52.5	—	0.00 / 0.95	—	80
—	11.20 / 13.60	—	323	55	—	0.00 / 0.75	—	366
—	7.40 / 11.20	—	120	57.5	—	0.00 / 0.50	—	179
—	5.00 / 8.90	—	127	60	—	0.00 / 0.75	—	278
—	2.80 / 6.70	—	627	62.5	—	0.00 / 1.30	—	109
—	2.45 / 4.00	—	1,060	65	—	0.15 / 1.45	—	417
1.49	1.20 / 1.60	4	599	67.5	—	0.70 / 3.80	—	200
0.77	0.15 / 0.95	12	2,221	70	—	2.60 / 4.90	—	36
0.30	0.05 / 0.50	8	68	72.5	—	5.00 / 6.70	—	2
0.25	0.10 / 0.30	2	654	75	—	7.30 / 9.10	—	—
0.20	0.00 / 0.25	2	65	77.5	—	9.20 / 11.40	—	—
0.10	0.05 / 0.50	2	794	80	—	11.60 / 14.00	—	—
A dash means the contract did not trade — not a price of zero.

Oct 16, 202641 days

call OI 3,642 · put OI 2,321

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	15.20 / 19.00	—	11	50	—	0.00 / 1.55	—	9
—	13.70 / 16.60	—	80	52.5	—	0.00 / 2.30	—	130
—	11.20 / 14.30	—	295	55	—	0.00 / 1.50	—	326
—	9.60 / 12.00	—	455	57.5	—	0.00 / 1.35	—	448
—	7.50 / 10.00	—	534	60	1.11	0.75 / 1.55	6	710
—	4.70 / 7.00	—	1,296	62.5	—	0.30 / 2.95	—	40
5.00	2.95 / 6.60	11	381	65	—	1.45 / 3.60	—	441
5.10	1.90 / 3.50	5	161	67.5	—	2.15 / 5.20	—	17
1.95	1.15 / 3.00	41	253	70	—	3.30 / 7.20	—	200
—	0.15 / 1.85	—	70	72.5	—	4.80 / 8.90	—	—
—	0.00 / 1.50	—	89	75	—	7.00 / 10.70	—	—
0.48	0.30 / 0.65	7	—	77.5	—	9.90 / 13.30	—	—
—	0.05 / 1.80	—	17	80	—	11.90 / 14.60	—	—
A dash means the contract did not trade — not a price of zero.

Jan 15, 2027132 days

call OI 7,969 · put OI 3,154

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
18.30	16.30 / 20.40	35	185	50	—	0.50 / 1.10	—	910
—	14.10 / 18.30	—	175	52.5	—	0.65 / 1.75	—	115
—	13.60 / 16.00	—	506	55	—	1.10 / 2.55	—	434
—	11.10 / 13.60	—	137	57.5	2.25	1.40 / 3.00	1	131
10.35	10.10 / 10.90	5	1,313	60	2.81	1.50 / 3.20	10	1,010
—	7.10 / 10.80	—	672	62.5	—	3.00 / 4.80	—	96
—	7.00 / 8.50	—	311	65	—	4.00 / 5.70	—	158
5.65	4.70 / 7.40	1	227	67.5	—	5.70 / 7.40	—	113
4.85	4.60 / 5.30	5	561	70	—	6.10 / 8.00	—	74
3.90	2.50 / 5.40	1	784	72.5	—	7.70 / 11.10	—	—
3.25	3.00 / 3.70	18	1,973	75	—	9.10 / 12.70	—	2
—	1.45 / 3.70	—	382	77.5	—	10.60 / 13.50	—	—
—	1.20 / 3.50	—	507	80	—	13.30 / 15.40	—	111
1.65	0.25 / 2.85	1	236	82.5	—	15.20 / 18.60	—	—
A dash means the contract did not trade — not a price of zero.

Apr 16, 2027223 days

call OI 25 · put OI 86

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	14.90 / 17.20	—	3	55	2.58	2.30 / 2.85	5	1
—	8.70 / 12.40	—	6	62.5	—	3.20 / 6.00	—	—
—	6.30 / 9.80	—	5	67.5	—	5.60 / 8.70	—	—
—	5.40 / 8.90	—	1	70	—	7.00 / 9.80	—	—
4.90	3.40 / 6.20	1	5	75	—	10.70 / 12.90	—	—
—	3.60 / 5.80	—	5	80	—	14.00 / 16.60	—	85
A dash means the contract did not trade — not a price of zero.

Jun 16, 2028650 days

call OI 5,827 · put OI 420

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	22.50 / 25.30	—	8	50	3.63	3.20 / 5.00	2	34
—	20.60 / 24.40	—	2	52.5	—	3.00 / 5.40	—	19
—	18.80 / 23.00	—	8	55	—	3.00 / 6.90	—	16
—	16.50 / 21.50	—	2	57.5	—	6.00 / 7.10	—	99
—	15.00 / 20.00	—	16	60	—	5.60 / 9.20	—	80
—	14.00 / 19.00	—	—	62.5	—	6.00 / 9.50	—	70
—	12.50 / 17.50	—	32	65	—	7.90 / 10.60	—	20
13.80	11.50 / 15.50	1	24	67.5	—	8.00 / 13.00	—	1
12.66	11.20 / 14.60	2	2,067	70	11.91	9.90 / 13.50	2	1
—	9.90 / 14.00	—	8	72.5	—	11.40 / 15.20	—	—
—	9.20 / 12.50	—	1,798	75	—	12.50 / 17.50	—	—
—	8.20 / 11.30	—	5	77.5	—	14.70 / 19.00	—	—
—	7.60 / 10.00	—	1,857	80	—	15.50 / 20.50	—	80
A dash means the contract did not trade — not a price of zero.

How to read this chain

Calls sit on the left, puts on the right, and every row is one strike. The highlighted row is the strike closest to spot. Open interest is the number of contracts still outstanding at that strike — positions that exist right now. Volume is how many traded on the session shown. Open interest builds slowly and marks where positioning has accumulated; volume spikes and marks where attention went today.

Strikes with no open interest and no trades on either side are omitted, and the ladder is trimmed to within 25% of spot — the far wings are almost entirely empty and say nothing about positioning.

More on BMRN

BMRN options score BMRN gamma walls BMRN max pain BMRN IV rank BMRN put/call ratio BMRN options flow

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Educational, not investment advice. Options involve risk. Open interest is reported with a one-session lag by OCC, so these levels describe positioning as of the last settled session, not live intraday flow.