TWST · Option chain

TWST Option Chain

Every listed TWST 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

$128.71

Call open interest

3,712

Put open interest

1,984

Put/call (volume)

0.83

507 contracts changed hands across these expirations — 277 calls against 230 puts. Calls outtraded puts 1.20 to one.

Sep 18, 202613 days

call OI 981 · put OI 954

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	29.90 / 33.70	—	1	97.5	—	0.00 / 2.55	—	—
29.70	28.50 / 31.30	3	21	100	—	0.05 / 0.75	—	65
—	22.90 / 26.50	—	501	105	—	0.00 / 2.70	—	15
—	18.20 / 21.90	—	6	110	—	0.00 / 3.30	—	108
—	14.10 / 17.80	—	8	115	2.85	0.15 / 2.65	1	40
—	11.20 / 14.00	—	14	120	—	2.20 / 4.90	—	132
—	8.20 / 11.00	—	10	125	—	4.00 / 7.10	—	132
7.80	6.10 / 7.90	1	8	130	—	6.10 / 9.60	—	115
6.05	3.70 / 6.90	2	11	135	11.80	9.40 / 12.50	3	80
4.42	2.20 / 5.10	2	22	140	13.05	12.70 / 16.00	1	89
2.60	2.00 / 3.70	3	120	145	—	16.70 / 20.30	—	31
4.27	0.50 / 3.70	1	140	150	22.07	20.90 / 24.70	4	77
2.05	0.00 / 3.60	2	107	155	—	25.30 / 29.10	—	6
—	0.10 / 3.30	—	12	160	—	29.80 / 33.80	—	64
A dash means the contract did not trade — not a price of zero.

Oct 16, 202641 days

call OI 827 · put OI 772

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	31.60 / 35.30	—	—	97.5	—	0.50 / 3.00	—	1
—	30.10 / 33.10	—	26	100	—	1.45 / 4.00	—	20
—	26.10 / 29.00	—	122	105	2.71	2.40 / 5.00	5	27
—	22.40 / 25.50	—	15	110	4.10	3.50 / 5.20	70	26
21.18	19.00 / 21.80	1	11	115	5.50	4.50 / 7.70	70	55
17.34	15.90 / 18.80	3	35	120	7.80	6.70 / 9.70	8	20
14.68	13.20 / 16.50	3	30	125	10.00	8.70 / 12.20	10	39
12.88	10.80 / 14.00	4	103	130	12.80	11.10 / 14.70	22	394
12.19	8.40 / 11.90	6	301	135	17.40	14.00 / 17.70	5	67
—	7.70 / 10.40	—	21	140	19.80	17.40 / 20.80	25	32
—	5.80 / 9.00	—	6	145	21.40	20.80 / 24.50	4	36
—	4.70 / 7.90	—	74	150	27.20	25.40 / 28.50	1	8
—	4.30 / 6.90	—	72	155	—	29.20 / 32.50	—	37
—	2.90 / 6.00	—	11	160	—	32.80 / 36.70	—	10
A dash means the contract did not trade — not a price of zero.

Jan 15, 2027132 days

call OI 1,587 · put OI 168

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	39.80 / 43.50	—	9	97.5	—	7.00 / 11.00	—	—
—	38.20 / 42.00	—	73	100	—	7.90 / 11.50	—	66
—	35.10 / 39.00	—	13	105	—	9.70 / 13.50	—	21
—	32.30 / 36.00	—	136	110	—	11.80 / 16.00	—	3
—	29.70 / 33.50	—	237	115	—	14.10 / 18.00	—	3
30.22	27.30 / 31.00	4	128	120	—	16.70 / 20.70	—	—
—	25.00 / 29.00	—	468	125	—	19.30 / 23.50	—	13
—	22.90 / 26.90	—	110	130	—	22.30 / 26.40	—	5
23.70	21.00 / 25.00	200	207	135	—	25.30 / 29.40	—	35
—	19.30 / 23.00	—	117	140	—	28.50 / 32.50	—	12
20.70	17.60 / 21.50	38	43	145	—	31.80 / 35.90	—	8
19.13	16.10 / 20.00	2	10	150	—	35.60 / 39.40	—	2
—	14.70 / 18.50	—	26	155	—	38.90 / 43.00	—	—
—	13.40 / 17.50	—	10	160	—	42.60 / 46.50	—	—
A dash means the contract did not trade — not a price of zero.

Apr 16, 2027223 days

call OI 25 · put OI 27

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	36.60 / 40.80	—	9	115	—	20.00 / 24.20	—	—
—	34.40 / 38.50	—	—	120	—	22.70 / 27.00	—	22
—	28.70 / 32.50	—	6	135	—	31.70 / 35.80	—	—
—	23.90 / 27.90	—	3	150	—	41.70 / 45.90	—	—
—	22.40 / 26.50	—	5	155	—	45.20 / 49.30	—	1
—	21.10 / 25.00	—	2	160	—	48.80 / 52.90	—	4
A dash means the contract did not trade — not a price of zero.

Jun 17, 2027285 days

call OI 69 · put OI 18

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	49.40 / 53.20	—	1	97.5	—	15.30 / 18.70	—	—
51.00	48.00 / 52.00	2	6	100	—	15.80 / 20.00	—	14
—	45.50 / 49.40	—	2	105	—	18.30 / 22.30	—	—
—	42.90 / 47.20	—	2	110	—	20.70 / 24.80	—	—
—	36.60 / 40.70	—	6	125	—	29.00 / 33.20	—	3
—	34.70 / 38.90	—	21	130	—	32.00 / 36.20	—	—
—	33.00 / 37.20	—	9	135	—	35.10 / 39.40	—	1
—	31.30 / 35.50	—	1	140	—	38.40 / 42.50	—	—
—	29.70 / 33.90	—	1	145	—	41.70 / 45.80	—	—
—	28.20 / 32.40	—	8	150	—	45.10 / 49.20	—	—
—	26.80 / 31.00	—	6	155	—	48.60 / 52.70	—	—
—	25.40 / 29.60	—	6	160	—	52.20 / 56.30	—	—
A dash means the contract did not trade — not a price of zero.

Dec 17, 2027468 days

call OI 223 · put OI 45

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	57.00 / 62.00	—	1	97.5	—	21.00 / 26.00	—	—
—	56.00 / 61.00	—	11	100	—	22.00 / 27.00	—	—
—	52.00 / 57.00	—	2	110	—	27.50 / 32.30	—	2
—	50.00 / 55.00	—	4	115	—	30.50 / 35.50	—	4
—	48.00 / 53.00	—	2	120	—	33.00 / 38.00	—	—
—	46.50 / 51.50	—	4	125	—	36.50 / 41.50	—	9
—	43.00 / 47.50	—	1	135	45.43	43.00 / 47.00	1	1
—	41.50 / 46.00	—	2	140	—	46.50 / 50.70	—	20
—	40.00 / 45.00	—	2	145	—	49.50 / 54.00	—	—
—	38.50 / 43.50	—	181	150	—	52.50 / 57.50	—	—
—	37.00 / 42.00	—	7	155	—	56.00 / 61.00	—	2
—	36.00 / 41.00	—	6	160	—	60.00 / 64.50	—	7
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 TWST

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