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ALNY
Alnylam Pharmaceuticals, Inc.
stock NASDAQ

At Close

Aug 20, 2026 3:59:57 PM EDT

229.30USD-5.484%(-13.31)1,686,514

212.80Bid 255.91Ask 43.11Spread

Pre-market

Aug 20, 2026 9:19:30 AM EDT

241.13USD-0.610%(-1.48)515

After-hours

Aug 20, 2026 4:50:30 PM EDT

229.30USD-0.002%(0.00)187,601

OverviewOption ChainHistoricalExchangesShortsMore

Expiration Dates

Aug 21, 2026 Sep 18, 2026 Oct 16, 2026 Dec 18, 2026 Jan 15, 2027 Mar 19, 2027 Dec 17, 2027

ITM/OTM for Jan 15, 2027View All Dates

Calls ITM	Calls OTM	Puts ITM	Puts OTM
186	13,310	3,723	1,144

ALNY Jan 15, 2027 Exp. - Volume by Strike

Puts

Calls

ALNY Jan 15, 2027 Exp. - Open Interest by Strike

Puts

Calls

ALNY Jan 15, 2027 Exp. - Max Pain @ $280.00

Puts

Calls

ALNY Jan 15, 2027 Exp. - Option Chain

In the Money (ITM)

Calls

Strike	Price	Change	Vol	OI	Last	Contract Name
720 C	1.90	-36.67%	1	2	07-09	ALNY270115C00720000
700 C	2.45	+169.23%	3	105	07-09	ALNY270115C00700000
680 C	3.30	+560.00%	3	141	07-09	ALNY270115C00680000
660 C	4.00	+42.86%	1	157	07-09	ALNY270115C00660000
640 C	5.00	+163.16%	6	84	07-09	ALNY270115C00640000
620 C	6.00	-87.63%	3	30	07-09	ALNY270115C00620000
600 C	6.50	+209.52%	11	165	07-09	ALNY270115C00600000
580 C	8.10	+93.78%	1	15	07-09	ALNY270115C00580000
560 C	5.80	-90.06%	36	118	03-31	ALNY270115C00560000
540 C	7.30	-12.05%	14	41	03-31	ALNY270115C00540000
520 C	1.85	-71.88%	1	40	07-21	ALNY270115C00520000
500 C	0.50	+100.00%	9	283	08-19	ALNY270115C00500000
490 C	11.07	-12.83%	1	5	03-12	ALNY270115C00490000
480 C	4.90	-18.33%	1	15	06-05	ALNY270115C00480000
470 C	22.70	-78.85%	14	8	02-02	ALNY270115C00470000
460 C	2.50	-72.22%	1	9	07-23	ALNY270115C00460000
450 C	1.06	-69.71%	6	349	08-19	ALNY270115C00450000
440 C	25.16	+259.43%	100	117	07-09	ALNY270115C00440000
430 C	1.10	-86.25%	7	357	08-19	ALNY270115C00430000
420 C	1.90	-63.46%	1	3,550	08-04	ALNY270115C00420000
410 C	1.75	-72.66%	10	67	08-03	ALNY270115C00410000
400 C	1.92	+74.55%	6	97	08-19	ALNY270115C00400000
390 C	1.35	-54.24%	3	73	08-11	ALNY270115C00390000
380 C	1.50	-11.76%	1	56	08-14	ALNY270115C00380000
370 C	1.85	+2.78%	9	1,739	08-18	ALNY270115C00370000
360 C	2.05	-4.65%	1	171	08-19	ALNY270115C00360000
350 C	2.90	+5.45%	3	137	08-11	ALNY270115C00350000
340 C	5.60	+148.89%	5	365	08-19	ALNY270115C00340000
330 C	5.92	+74.12%	1	98	08-19	ALNY270115C00330000
320 C	5.75	+22.34%	4	70	08-19	ALNY270115C00320000
310 C	10.20	+74.36%	1	27	08-19	ALNY270115C00310000
300 C	10.20	+37.84%	2	219	08-19	ALNY270115C00300000
290 C	8.90	+8.54%	5	93	08-17	ALNY270115C00290000
280 C	17.10	+43.70%	7	3,647	08-19	ALNY270115C00280000
270 C	13.60	+8.80%	6	12	08-13	ALNY270115C00270000
260 C	21.05	+14.40%	2	12	08-19	ALNY270115C00260000
250 C	25.60	+36.17%	5	696	08-19	ALNY270115C00250000
240 C	29.77	+26.68%	1	100	08-19	ALNY270115C00240000
230 C	34.54	+47.61%	5	40	08-19	ALNY270115C00230000
220 C	44.60	+26.35%	1	26	08-19	ALNY270115C00220000
210 C	32.50	+22.64%	6	16	08-03	ALNY270115C00210000
200 C	55.16	+32.12%	3	33	08-19	ALNY270115C00200000
195 C	42.00	-2.30%	6	5	08-07	ALNY270115C00195000
190 C	51.50	+42.66%	3	6	08-06	ALNY270115C00190000
185 C	40.30	0%	4	2	07-30	ALNY270115C00185000
180 C	70.77	+76.48%	14	19	08-19	ALNY270115C00180000
175 C	43.20	0%	4	4	07-30	ALNY270115C00175000
170 C	47.60	-65.51%	7	50	07-30	ALNY270115C00170000
165 C	0	0%	0			ALNY270115C00165000
160 C	0	0%	0			ALNY270115C00160000
155 C	170.00	+1.43%	10	12	06-12	ALNY270115C00155000
150 C	143.00	-20.11%	1	1	06-17	ALNY270115C00150000
145 C	322.50	+2.20%	1	2	09-04	ALNY270115C00145000
140 C	128.55	-11.19%	3	2	12-12	ALNY270115C00140000
135 C	0	0%	0			ALNY270115C00135000
130 C	247.50	0%	1	0	01-12	ALNY270115C00130000
125 C	338.48	+66.14%	1	3	08-18	ALNY270115C00125000
120 C	102.50	-70.37%	2	5	07-30	ALNY270115C00120000
115 C	0	0%	0			ALNY270115C00115000
110 C	0	0%	0			ALNY270115C00110000

Puts

Strike	Price	Change	Vol	OI	Last	Contract Name
720 P	0	0%	0			ALNY270115P00720000
700 P	0	0%	0			ALNY270115P00700000
680 P	0	0%	0			ALNY270115P00680000
660 P	290.00	0%	1	0	01-12	ALNY270115P00660000
640 P	0	0%	0			ALNY270115P00640000
620 P	0	0%	0			ALNY270115P00620000
600 P	289.50	+73.98%	3	11	02-12	ALNY270115P00600000
580 P	271.50	0%	2	0	02-12	ALNY270115P00580000
560 P	0	0%	0			ALNY270115P00560000
540 P	313.39	-3.27%	3	8	08-13	ALNY270115P00540000
520 P	291.88	-0.50%	1	50	08-14	ALNY270115P00520000
500 P	271.91	-4.21%	1	75	08-14	ALNY270115P00500000
490 P	272.80	+24.74%	50	75	08-07	ALNY270115P00490000
480 P	82.00	+1.74%	3	12	09-15	ALNY270115P00480000
470 P	253.00	-4.71%	50	75	08-07	ALNY270115P00470000
460 P	72.10	0%	1	1	09-08	ALNY270115P00460000
450 P	233.10	-5.09%	200	287	08-07	ALNY270115P00450000
440 P	124.00	+45.59%	6	14	04-17	ALNY270115P00440000
430 P	225.30	+207.66%	100	100	07-31	ALNY270115P00430000
420 P	215.82	+63.50%	2	3	07-31	ALNY270115P00420000
410 P	205.86	+65.66%	2	6	07-31	ALNY270115P00410000
400 P	195.70	+3.54%	100	100	07-31	ALNY270115P00400000
390 P	97.10	+46.46%	1	4	05-28	ALNY270115P00390000
380 P	96.75	+1.50%	11	102	05-12	ALNY270115P00380000
370 P	80.36	+8.59%	3	10	03-27	ALNY270115P00370000
360 P	81.60	+34.21%	47	46	06-08	ALNY270115P00360000
350 P	74.40	+13.00%	29	29	06-08	ALNY270115P00350000
340 P	126.60	+108.12%	1	301	07-30	ALNY270115P00340000
330 P	117.40	+97.24%	1	11	07-30	ALNY270115P00330000
320 P	82.10	-29.09%	10	198	08-19	ALNY270115P00320000
310 P	99.00	+63.37%	1	108	08-03	ALNY270115P00310000
300 P	77.43	-9.97%	3	347	08-13	ALNY270115P00300000
290 P	21.73	-18.31%	52	100	07-09	ALNY270115P00290000
280 P	55.50	+40.15%	2	253	08-06	ALNY270115P00280000
270 P	34.00	-8.11%	36	70	07-24	ALNY270115P00270000
260 P	29.90	+48.46%	2	255	07-24	ALNY270115P00260000
250 P	56.50	+167.77%	5	846	07-31	ALNY270115P00250000
240 P	33.10	+75.13%	2	35	08-14	ALNY270115P00240000
230 P	24.00	-14.89%	1	191	08-19	ALNY270115P00230000
220 P	27.00	+10.20%	41	62	08-10	ALNY270115P00220000
210 P	20.00	-4.76%	5	64	08-12	ALNY270115P00210000
200 P	15.00	-11.24%	2	34	08-18	ALNY270115P00200000
195 P	14.60	-3.31%	57	71	08-12	ALNY270115P00195000
190 P	11.88	-10.68%	6	46	08-17	ALNY270115P00190000
185 P	8.00	-29.20%	18	57	08-19	ALNY270115P00185000
180 P	9.30	-12.26%	1	48	08-13	ALNY270115P00180000
175 P	9.30	+111.85%	32	60	08-11	ALNY270115P00175000
170 P	8.40	0%	17	17	08-11	ALNY270115P00170000
165 P	7.20	+97.26%	11	17	08-11	ALNY270115P00165000
160 P	11.00	+165.06%	12	13	07-30	ALNY270115P00160000
155 P	4.10	-59.00%	118	547	08-13	ALNY270115P00155000
150 P	4.00	0.00%	2	26	08-14	ALNY270115P00150000
145 P	2.80	-60.56%	4	5	08-14	ALNY270115P00145000
140 P	0	0%	0			ALNY270115P00140000
135 P	0	0%	0			ALNY270115P00135000
130 P	3.90	-7.14%	1	8	08-03	ALNY270115P00130000
125 P	2.36	-26.93%	1	4	08-03	ALNY270115P00125000
120 P	2.50	-15.25%	2	60	08-03	ALNY270115P00120000
115 P	0	0%	0			ALNY270115P00115000
110 P	0.60	-20.00%	1	5	08-19	ALNY270115P00110000