CTAS · Option chain

CTAS Option Chain

Every listed CTAS 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

$201.05

Call open interest

4,496

Put open interest

4,018

Put/call (volume)

1.84

241 contracts changed hands across these expirations — 85 calls against 156 puts. Puts outtraded calls 1.84 to one.

Sep 11, 20266 days

call OI 151 · put OI 298

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	22.80 / 29.60	—	—	175	—	0.00 / 1.30	—	24
—	12.80 / 19.70	—	1	185	—	0.00 / 1.30	—	1
—	8.50 / 12.90	—	—	190	0.32	0.00 / 1.05	1	1
—	7.90 / 10.10	—	—	192.5	0.72	0.05 / 1.30	1	1
—	5.90 / 7.80	—	—	195	0.82	0.05 / 1.35	2	89
—	4.00 / 5.70	—	—	197.5	—	0.20 / 1.75	—	75
—	1.75 / 4.90	—	4	200	—	0.80 / 3.10	—	4
1.14	0.30 / 1.50	6	36	205	—	2.85 / 6.80	—	—
0.66	0.20 / 1.30	1	—	207.5	—	5.60 / 9.30	—	—
—	0.05 / 0.90	—	13	210	—	7.30 / 11.60	—	46
—	0.00 / 1.15	—	—	212.5	—	8.00 / 15.00	—	1
—	0.00 / 1.30	—	4	215	—	10.60 / 17.50	—	56
—	0.00 / 1.30	—	2	217.5	—	13.70 / 20.00	—	—
—	0.00 / 1.30	—	11	220	—	16.20 / 22.40	—	—
—	0.00 / 1.30	—	55	225	—	20.60 / 27.40	—	—
—	0.00 / 1.30	—	1	230	—	25.70 / 32.40	—	—
—	0.00 / 1.30	—	24	240	—	35.70 / 42.40	—	—
A dash means the contract did not trade — not a price of zero.

Sep 18, 202613 days

call OI 3,905 · put OI 3,093

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	42.90 / 49.60	—	5	155	—	0.00 / 0.05	—	13
—	37.90 / 44.60	—	8	160	—	0.05 / 0.40	—	39
—	32.90 / 39.70	—	15	165	—	0.00 / 1.30	—	224
—	27.90 / 34.70	—	62	170	—	0.00 / 1.30	—	326
—	23.10 / 29.90	—	69	175	—	0.00 / 0.25	—	152
—	18.20 / 24.70	—	56	180	—	0.00 / 0.65	—	77
—	14.30 / 18.30	—	140	185	—	0.00 / 1.10	—	63
—	11.90 / 16.90	—	—	187.5	—	0.05 / 1.30	—	1
—	9.80 / 13.10	—	129	190	0.80	0.50 / 1.10	4	496
—	7.70 / 12.30	—	—	192.5	—	0.35 / 1.95	—	1
—	6.10 / 8.30	—	320	195	1.70	0.80 / 2.50	5	797
—	4.50 / 7.10	—	1	197.5	—	1.25 / 2.90	—	309
—	3.20 / 5.30	—	845	200	—	2.00 / 4.20	—	415
—	2.10 / 4.40	—	3	202.5	—	3.00 / 5.60	—	5
2.19	1.50 / 3.30	2	8	205	—	5.00 / 6.80	—	12
1.25	1.10 / 2.65	2	2	207.5	—	5.60 / 9.30	—	—
1.00	0.25 / 1.95	17	408	210	—	7.40 / 12.10	—	147
—	0.25 / 1.30	—	11	212.5	—	10.50 / 14.40	—	—
—	0.05 / 1.30	—	33	215	—	11.40 / 17.10	—	—
0.20	0.00 / 0.55	6	124	217.5	—	13.20 / 20.00	—	—
0.22	0.20 / 0.40	5	968	220	—	16.70 / 22.60	—	15
—	0.00 / 0.60	—	3	222.5	—	19.40 / 25.00	—	—
0.70	0.00 / 0.90	1	466	230	—	25.90 / 32.40	—	1
—	0.00 / 1.30	—	175	240	—	35.70 / 42.40	—	—
—	0.00 / 1.30	—	54	250	—	45.70 / 52.40	—	—
A dash means the contract did not trade — not a price of zero.

Sep 25, 202620 days

call OI 218 · put OI 319

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	43.00 / 49.90	—	2	155	—	0.00 / 1.30	—	—
—	38.00 / 44.90	—	—	160	—	0.00 / 1.30	—	12
—	19.40 / 24.90	—	—	180	—	0.05 / 1.40	—	4
—	15.20 / 19.00	—	1	185	—	0.55 / 1.90	—	20
—	11.20 / 14.80	—	62	190	2.50	0.95 / 2.85	1	26
—	8.30 / 11.00	—	3	195	—	2.50 / 4.30	—	240
—	5.00 / 8.30	—	1	200	—	3.60 / 6.40	—	4
—	2.85 / 5.00	—	135	205	—	5.90 / 9.30	—	6
2.35	1.40 / 3.70	2	4	210	—	9.80 / 12.00	—	—
—	0.60 / 1.65	—	4	215	—	13.70 / 17.50	—	2
—	0.30 / 1.00	—	2	220	—	16.70 / 22.10	—	4
0.65	0.15 / 1.20	1	4	225	—	22.00 / 27.50	—	1
A dash means the contract did not trade — not a price of zero.

Oct 02, 202627 days

call OI 46 · put OI 101

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	20.10 / 23.60	—	—	180	—	0.20 / 1.45	—	6
15.20	16.90 / 20.70	1	1	185	—	1.15 / 2.15	—	2
—	13.20 / 15.10	—	—	190	2.88	1.30 / 3.30	36	1
—	9.70 / 11.30	—	12	195	3.87	2.80 / 4.70	32	6
—	5.70 / 9.10	—	21	200	—	4.90 / 6.60	—	9
—	3.50 / 6.30	—	—	205	—	6.40 / 9.80	—	1
—	1.90 / 4.40	—	4	210	—	9.30 / 13.50	—	76
1.60	0.85 / 1.75	1	4	220	—	18.30 / 22.30	—	—
—	0.05 / 1.35	—	2	225	—	22.40 / 27.20	—	—
—	0.05 / 1.40	—	2	230	—	25.50 / 32.70	—	—
A dash means the contract did not trade — not a price of zero.

Oct 09, 202634 days

call OI 4 · put OI 9

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	13.90 / 17.10	—	1	190	3.24	1.70 / 3.30	36	—
—	9.20 / 13.20	—	—	195	4.24	3.40 / 5.10	32	—
—	6.30 / 9.90	—	—	200	—	5.60 / 7.10	—	9
2.45	1.30 / 2.95	17	—	215	—	13.30 / 17.90	—	—
1.63	1.15 / 2.10	7	—	220	—	18.60 / 22.60	—	—
1.02	0.85 / 1.50	2	—	225	—	22.80 / 27.10	—	—
—	0.00 / 1.40	—	3	240	—	35.60 / 42.50	—	—
A dash means the contract did not trade — not a price of zero.

Oct 16, 202641 days

call OI 172 · put OI 198

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	25.10 / 29.30	—	1	175	1.30	0.10 / 1.75	1	6
—	20.80 / 24.90	—	—	180	1.85	1.10 / 2.30	1	9
—	17.60 / 20.20	—	—	185	2.50	1.85 / 2.90	1	39
—	13.00 / 16.20	—	—	190	3.60	2.80 / 4.10	1	87
—	11.00 / 12.60	—	—	195	5.20	3.30 / 6.10	1	9
—	8.10 / 9.40	—	14	200	7.30	5.10 / 8.20	1	36
4.70	4.30 / 5.00	12	114	210	—	11.80 / 13.20	—	12
—	2.00 / 2.80	—	26	220	—	18.70 / 22.80	—	—
0.95	0.10 / 1.30	2	11	230	—	27.20 / 32.40	—	—
—	0.00 / 1.40	—	4	240	—	35.90 / 42.00	—	—
—	0.00 / 0.20	—	2	250	—	45.80 / 51.90	—	—
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 CTAS

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

Weekly options-market digest

Sundays. What moved this week, what catalysts and earnings drive next week, and which 5-pillar setups stand out.

Free. One email per week. Unsubscribe with one click.

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.