ALGN · Option chain

ALGN Option Chain

Every listed ALGN strike within 25% of spot, across the next 6 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

$159.85

Call open interest

2,420

Put open interest

2,220

Put/call (volume)

2.62

1,934 contracts changed hands across these expirations — 534 calls against 1,400 puts. Puts outtraded calls 2.62 to one.

Sep 11, 20266 days

call OI 256 · put OI 315

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	30.70 / 38.30	—	—	125	—	0.00 / 5.10	—	5
—	25.70 / 33.50	—	—	130	—	0.00 / 0.50	—	9
—	21.50 / 26.60	—	—	135	0.05	0.00 / 5.10	2	3
—	16.10 / 23.50	—	—	140	—	0.00 / 0.50	—	86
—	11.70 / 16.80	—	—	145	—	0.00 / 6.90	—	14
—	10.50 / 16.00	—	—	146	0.29	0.00 / 1.10	8	1
—	9.50 / 15.00	—	—	147	0.45	0.00 / 5.20	786	2
—	10.00 / 14.10	—	—	148	0.25	0.00 / 0.80	220	—
—	8.80 / 13.20	—	—	149	0.40	0.00 / 4.30	74	1
—	6.40 / 11.80	—	—	150	0.50	0.10 / 0.55	15	111
6.50	4.70 / 10.00	9	—	152.5	1.48	0.00 / 2.25	30	—
6.20	5.30 / 8.90	13	2	155	1.20	0.60 / 1.85	55	25
—	4.00 / 5.00	—	1	157.5	—	1.45 / 2.65	—	24
2.90	2.40 / 7.30	2	2	160	3.01	2.75 / 3.50	1	9
1.30	1.55 / 3.50	1	—	162.5	7.20	1.90 / 7.60	1	—
1.04	1.00 / 1.45	89	6	165	—	5.70 / 7.60	—	10
—	0.10 / 2.20	—	10	167.5	—	7.10 / 10.80	—	1
—	0.30 / 2.00	—	126	170	—	9.00 / 14.40	—	9
0.20	0.00 / 5.30	22	3	172.5	—	11.00 / 16.70	—	—
0.25	0.00 / 1.40	118	9	175	—	11.10 / 19.60	—	1
0.20	0.00 / 2.20	48	1	177.5	—	16.30 / 21.50	—	—
—	0.00 / 5.10	—	32	180	—	17.40 / 24.00	—	4
0.20	0.00 / 5.10	1	2	182.5	—	19.80 / 26.50	—	—
—	0.00 / 5.10	—	59	185	—	22.30 / 29.00	—	—
—	0.00 / 2.70	—	2	190	—	26.00 / 34.50	—	—
—	0.00 / 6.80	—	1	195	—	31.00 / 39.50	—	—
A dash means the contract did not trade — not a price of zero.

Sep 18, 202613 days

call OI 1,571 · put OI 1,335

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	36.40 / 41.60	—	2	120	0.05	0.00 / 0.05	4	24
—	31.40 / 36.60	—	—	125	—	0.00 / 1.30	—	38
—	26.40 / 32.70	—	39	130	0.17	0.05 / 1.15	98	88
—	21.50 / 28.60	—	24	135	0.20	0.10 / 1.20	8	102
—	16.60 / 23.50	—	4	140	1.60	0.20 / 0.50	3	180
—	13.10 / 17.40	—	13	145	0.79	0.40 / 2.50	3	143
—	10.80 / 16.70	—	—	146	—	0.30 / 0.90	—	16
—	9.90 / 15.80	—	—	147	0.95	0.35 / 1.35	32	3
—	9.00 / 14.30	—	—	148	0.90	0.75 / 1.15	2	3
—	8.60 / 13.80	—	—	149	1.32	0.40 / 1.35	5	3
9.50	7.80 / 13.50	1	28	150	—	1.00 / 1.55	—	74
—	8.40 / 13.00	—	1	152.5	—	1.45 / 2.10	—	—
6.00	6.80 / 9.70	22	5	155	—	1.85 / 5.50	—	143
—	5.40 / 10.00	—	2	157.5	5.10	2.80 / 3.60	31	78
—	3.70 / 9.00	—	109	160	—	3.90 / 4.80	—	114
3.25	2.85 / 3.60	2	1	162.5	5.90	4.80 / 9.20	5	1
—	0.00 / 4.20	—	333	165	—	4.40 / 7.90	—	80
1.85	1.45 / 2.05	10	—	167.5	—	5.10 / 9.80	—	1
1.05	0.10 / 1.80	1	50	170	—	8.60 / 15.40	—	147
—	0.00 / 5.60	—	9	172.5	—	12.10 / 15.80	—	—
0.65	0.00 / 1.30	21	145	175	—	14.30 / 19.40	—	48
0.45	0.05 / 4.90	19	19	177.5	—	16.60 / 21.80	—	—
—	0.10 / 5.30	—	70	180	—	17.70 / 24.20	—	37
—	0.05 / 7.00	—	5	182.5	—	19.30 / 27.10	—	—
—	0.00 / 0.50	—	294	185	—	21.90 / 29.50	—	4
—	0.00 / 0.45	—	159	190	—	27.80 / 34.00	—	3
0.14	0.00 / 6.80	1	259	195	—	32.30 / 39.00	—	5
A dash means the contract did not trade — not a price of zero.

Sep 25, 202620 days

call OI 17 · put OI 84

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	21.50 / 29.90	—	—	135	—	0.00 / 3.10	—	5
—	17.00 / 25.00	—	—	140	—	0.00 / 5.50	—	5
—	12.40 / 19.40	—	—	145	—	0.85 / 1.40	—	6
—	9.70 / 14.90	—	5	150	2.70	1.55 / 2.20	1	17
—	7.60 / 11.00	—	—	155	4.90	2.70 / 3.70	1	10
—	1.30 / 6.20	—	4	160	7.50	4.60 / 5.90	1	14
—	2.90 / 3.90	—	1	165	—	5.20 / 11.90	—	20
1.10	1.65 / 2.35	100	4	170	—	8.50 / 15.80	—	1
—	0.50 / 2.15	—	1	175	—	14.60 / 19.80	—	3
—	0.00 / 1.70	—	2	180	—	16.50 / 24.90	—	—
—	0.00 / 5.40	—	—	185	—	22.30 / 29.20	—	3
A dash means the contract did not trade — not a price of zero.

Oct 02, 202627 days

call OI 17 · put OI 60

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	26.50 / 35.00	—	—	130	—	0.00 / 1.50	—	23
—	21.70 / 30.20	—	—	135	—	0.00 / 9.10	—	4
—	17.10 / 25.70	—	—	140	—	0.00 / 7.30	—	3
—	14.20 / 19.70	—	—	145	—	0.00 / 3.50	—	6
13.00	12.00 / 15.80	1	—	150	—	2.05 / 3.90	—	1
—	8.70 / 10.70	—	—	155	4.50	3.40 / 4.50	1	11
6.20	5.70 / 9.40	6	11	160	—	5.50 / 6.70	—	7
—	1.45 / 6.20	—	1	165	—	8.30 / 9.60	—	4
2.55	2.25 / 3.00	2	—	170	—	8.20 / 16.40	—	—
1.70	0.00 / 4.70	11	1	175	—	13.60 / 20.30	—	—
—	0.55 / 1.70	—	4	180	—	18.90 / 24.50	—	1
0.75	0.00 / 3.40	22	—	185	—	22.70 / 29.20	—	—
A dash means the contract did not trade — not a price of zero.

Oct 09, 202634 days

call OI 8 · put OI 9

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	13.40 / 21.10	—	2	145	—	1.60 / 2.75	—	—
—	9.40 / 17.40	—	1	150	3.44	2.55 / 3.50	1	2
—	9.10 / 12.60	—	—	155	5.70	3.90 / 5.20	4	3
—	6.60 / 10.20	—	1	160	—	6.10 / 9.50	—	2
—	4.30 / 7.70	—	2	165	—	8.80 / 10.20	—	1
—	2.80 / 3.80	—	1	170	—	10.00 / 13.60	—	1
—	1.70 / 2.75	—	1	175	—	12.40 / 21.30	—	—
A dash means the contract did not trade — not a price of zero.

Oct 16, 202641 days

call OI 551 · put OI 417

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	36.70 / 45.00	—	—	120	—	0.05 / 1.55	—	12
—	31.80 / 40.10	—	—	125	—	0.05 / 3.60	—	6
—	27.10 / 35.00	—	1	130	—	0.25 / 1.50	—	33
—	22.80 / 30.90	—	—	135	—	0.80 / 1.30	—	22
—	19.70 / 26.30	—	—	140	—	0.00 / 2.45	—	81
—	15.50 / 20.80	—	2	145	—	0.05 / 4.80	—	38
—	13.30 / 18.30	—	—	150	—	3.20 / 4.00	—	78
9.30	10.30 / 11.30	2	14	155	5.00	5.00 / 6.20	5	33
—	7.40 / 8.40	—	16	160	—	6.80 / 7.90	—	25
5.80	5.10 / 8.60	5	12	165	10.50	9.50 / 10.60	3	22
—	1.25 / 4.10	—	13	170	—	12.70 / 14.20	—	8
2.70	2.30 / 2.90	5	20	175	—	14.80 / 18.00	—	3
—	0.25 / 3.10	—	247	180	—	20.20 / 25.20	—	15
—	1.00 / 1.70	—	100	185	—	22.20 / 29.90	—	14
—	0.15 / 2.05	—	89	190	—	26.90 / 34.60	—	17
—	0.00 / 1.20	—	37	195	—	31.20 / 39.60	—	10
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 ALGN

ALGN options score ALGN gamma walls ALGN max pain ALGN IV rank ALGN put/call ratio ALGN 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.