West Pharmaceutical Services

WST · NYSE

$388.78+$4.87 (+1.27%)TodayMarket closed · Oct 20, 7:59 PM ET

Prev close $383.91

WST options chain

Calls and puts around the current price

By Fri, Nov 20 options price a move of ±$41.85 (10.8%), between $346.39 and $430.09.

At-the-money implied volatility: 46.4%
Put/call open interest: 0.17
Total open interest: 528
Underlying price: $388.24

WST options expiring Nov 20, 2026: calls on the left, puts on the right. Calls below $388.24 and puts above it are in the money.
Calls		Calls					Puts
Open int.	IV	Ask	Bid	Strike	Bid	Ask	IV	Open int.
0	52.4%	$64.80	$61.20	330	$2.90	$3.60	50.2%	24
38	50.6%	$56.20	$52.80	340	$3.70	$5.00	47.3%	10
34	50.4%	$48.10	$45.00	350	$5.80	$7.10	47.9%	8
14	49.0%	$40.80	$37.50	360	$8.30	$10.10	47.2%	7
22	47.3%	$32.80	$30.70	370	$11.20	$14.60	48.3%	1
235	47.3%	$27.60	$24.90	380	$14.80	$17.10	45.1%	0
WST $388.24
9	46.9%	$22.00	$19.60	390	$19.50	$22.60	46.0%	0
32	46.1%	$17.60	$15.10	400	$25.10	$27.40	44.4%	1
3	46.3%	$14.00	$11.30	410	$31.20	$34.00	44.5%	0
17	45.1%	$10.00	$8.80	420	$38.00	$40.70	43.3%	0
35	44.1%	$8.00	$5.20	430	$45.00	$48.70	42.6%	0
2	44.1%	$6.80	$3.00	440	$53.20	$56.70	41.9%	0

Volatility smile

Implied volatility by strike for Fri, Nov 20, calls and puts averaged.

Unusual options activity

The latest large trades, newest first

Unusual WST options trades
Contract	Trade	Contracts	Premium	Sentiment	Time
WST 380C Nov 20	Large	192	$417.22K	neutral	Oct 16, 3:32 PM ET
WST 420C Mar 19	Large	63	$122.85K	bullish	Oct 5, 3:59 PM ET
WST 360C Nov 20	Block	72	$175.75K	neutral	Oct 1, 1:32 PM ET
WST 360C Nov 20	Large	50	$137.70K	neutral	Oct 1, 12:02 PM ET
WST 360C Nov 20	Large	50	$134.70K	neutral	Oct 1, 12:02 PM ET
WST 360C Oct 16	Large	261	$269.09K	neutral	Sep 18, 3:45 PM ET
WST 340C Sep 18	Sweep	36	$41.76K	bullish	Sep 11, 11:21 AM ET
WST 350C Sep 18	Large	273	$300.57K	neutral	Aug 21, 3:34 PM ET

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