Twist Bioscience (TWST) Options Chain

NASDAQ: TWSTHealth CareBiotechnology: Biological Products (No Diagnostic Substances)USD

159.78+7.73 (+5.08%)

At close: Oct 9, 4:00 PM ET · Delayed 15 min

Expiration date

Expiration: Jan 15, 2027
Days to expiration: 96
Share price: $159.78
Put/call ratio (OI): 0.19
Put/call ratio (volume): 0.62
ATM implied volatility: 84.6%
Expected move: ±$69.33
Open interest (C / P): 5.00K / 928

TWST options summary

The TWST options chain for the January 15, 2027 expiration lists 50 call and 43 put contracts, with 96 days until expiration. Open interest stands at 5,001 calls and 928 puts, a put/call ratio of 0.19, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $160.00 strike is 84.6%, which implies the market expects a move of about ±$69.33 (43.4%) in Twist Bioscience stock by expiration.

The most open interest sits at the $250.00 call (1.01K contracts) and the $90.00 put (170 contracts).

Summary generated from market data by MetaCap's automated system. Methodology

TWST options chain · January 15, 2027

TWST calls and puts by strike price. Shaded cells are in the money.
Calls							Puts
OI	Vol	IV	Last	Bid	Ask	Strike	Bid	Ask	Last	IV	Vol	OI
10	1	170.7%	128.60	126.10	130.10	32.50	—	—	—	—	—	—
2	1	157.0%	122.30	123.40	127.50	35.00	0.00	3.40	2.40	188.7%	1	1
—	—	—	—	—	—	37.50	0.00	2.40	1.15	167.5%	—	1
0	1	—	90.40	0.00	0.00	40.00	0.00	0.00	2.00	50.0%	1	0
1	2	—	32.44	50.90	55.10	42.50	0.00	0.00	0.45	50.0%	1	0
2	1	141.1%	107.30	113.80	117.70	45.00	0.00	2.70	1.63	150.8%	1	3
1	1	—	49.90	92.80	96.80	47.50	0.00	2.85	2.65	146.4%	1	2
7	2	138.3%	122.00	109.30	112.90	50.00	0.00	2.30	0.20	134.5%	10	11
21	1	128.5%	89.00	106.40	110.40	52.50	0.00	3.10	4.02	137.6%	1	2
2	3	126.8%	128.20	104.20	107.90	55.00	0.00	2.20	0.45	123.1%	1	51
0	1	—	51.50	83.70	87.50	57.50	0.00	3.70	4.45	132.4%	1	0
152	2	119.2%	117.59	99.10	103.20	60.00	0.00	2.45	1.20	116.4%	1	22
—	—	—	—	—	—	62.50	0.00	0.00	2.84	50.0%	1	0
7	1	—	46.30	77.20	81.00	65.00	0.15	4.10	5.31	122.0%	1	0
—	—	—	—	—	—	67.50	0.00	0.00	4.07	25.0%	—	0
9	1	110.4%	93.37	89.70	93.70	70.00	0.00	2.60	0.60	101.1%	1	2
3	5	107.0%	54.90	87.40	91.10	72.50	—	—	—	—	—	—
52	1	107.3%	79.80	85.40	88.80	75.00	0.00	3.00	1.27	96.7%	4	7
—	—	—	—	—	—	77.50	0.00	3.10	1.50	93.7%	1	7
226	1	102.7%	104.00	80.60	84.20	80.00	0.00	3.30	2.08	91.5%	5	19
50	3	—	26.00	62.90	67.00	82.50	0.10	3.40	2.90	89.2%	—	2
17	1	98.9%	58.00	76.00	79.60	85.00	—	—	—	—	—	—
2	4	—	19.90	22.00	26.20	87.50	0.55	3.60	2.11	86.1%	20	12
159	2	97.8%	66.19	71.90	75.20	90.00	0.75	3.80	3.10	84.7%	11	170
52	41	95.7%	77.06	70.00	72.50	92.50	1.95	3.30	2.30	84.6%	40	102
—	—	—	—	—	—	95.00	1.20	4.20	3.90	82.0%	1	3
9	—	—	25.36	51.80	54.90	97.50	0.00	0.00	11.09	25.0%	1	0
76	1	94.2%	67.90	63.60	66.70	100.00	3.00	4.20	3.60	82.3%	4	71
13	3	92.5%	99.30	59.50	62.70	105.00	3.00	5.90	3.00	81.3%	1	30
130	16	91.3%	56.50	55.70	58.80	110.00	4.10	7.00	7.00	81.0%	1	4
237	1	90.7%	57.29	52.10	55.20	115.00	5.30	8.20	9.35	80.4%	1	5
104	6	88.8%	44.04	48.60	51.20	120.00	6.90	9.80	9.20	81.0%	2	23
466	10	88.2%	48.00	45.10	48.00	125.00	8.50	11.40	12.85	80.7%	5	39
113	1	88.1%	42.27	42.00	45.00	130.00	10.30	13.70	14.50	81.5%	1	12
57	5	88.2%	26.50	39.20	42.10	135.00	12.40	15.20	13.00	80.6%	25	43
119	3	88.2%	32.00	36.50	39.40	140.00	14.50	17.50	16.47	80.6%	25	113
60	30	89.0%	38.60	34.00	37.30	145.00	17.10	20.30	20.70	81.7%	2	81
160	2	89.3%	35.30	31.80	34.90	150.00	19.50	22.30	24.50	80.6%	1	10
35	2	88.0%	35.22	29.00	32.40	155.00	21.70	25.60	26.00	80.8%	3	6
TWST $159.78
52	25	89.0%	31.40	27.40	30.40	160.00	24.60	28.00	25.50	80.2%	1	6
411	2	88.5%	28.00	25.10	28.40	165.00	28.00	30.90	24.30	80.7%	1	1
93	2	89.1%	26.65	23.60	26.60	170.00	30.90	34.00	30.97	80.3%	—	2
97	4	87.9%	21.75	21.50	24.50	175.00	—	—	—	—	—	—
206	21	87.5%	21.00	19.70	22.80	180.00	37.90	40.30	34.82	80.3%	4	4
114	83	89.1%	20.65	18.80	21.70	185.00	41.40	44.50	35.00	81.4%	46	46
20	6	87.4%	19.50	16.60	20.00	190.00	—	—	—	—	—	—
12	3	87.8%	17.90	15.50	18.70	195.00	—	—	—	—	—	—
288	21	89.1%	17.00	15.00	17.60	200.00	52.00	55.50	51.00	80.3%	1	11
37	2	87.8%	14.11	12.20	15.20	210.00	—	—	—	—	—	—
48	2	88.6%	12.20	10.80	13.30	220.00	67.90	71.00	73.45	78.8%	1	4
25	2	88.6%	7.70	9.10	11.70	230.00	—	—	—	—	—	—
112	10	85.4%	9.15	7.10	9.20	240.00	—	—	—	—	—	—
1,015	1	85.2%	7.22	5.90	8.00	250.00	—	—	—	—	—	—
59	1	88.3%	4.66	5.20	8.10	260.00	—	—	—	—	—	—
58	28	88.6%	7.40	4.30	7.30	270.00	—	—	—	—	—	—

In-the-money callsIn-the-money puts. IV = implied volatility, OI = open interest (contracts). Each contract covers 100 shares. Quotes delayed at least 15 minutes.

Frequently asked questions

What is the TWST put/call ratio?

For the January 15, 2027 expiration, the TWST put/call ratio based on open interest is 0.19 (928 puts vs 5,001 calls), and 0.62 based on today's volume. A ratio above 1 means more puts than calls.

What is TWST's implied volatility?

At-the-money implied volatility for TWST options expiring January 15, 2027 is about 84.6%, an annualized estimate of how much the market expects Twist Bioscience stock to move.

How many TWST option expiration dates are there?

TWST has 6 listed expiration dates, from Oct 16, 2026 to Dec 17, 2027.

What does "in the money" mean?

A call is in the money when the strike price is below the current share price; a put is in the money when the strike is above it. In-the-money contracts have intrinsic value and are shaded in the table.