Waters (WAT) Options Chain

NYSE: WATIndustrialsBiotechnology: Laboratory Analytical InstrumentsUSD

433.77+4.64 (+1.08%)

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

Expiration date

Expiration: Feb 19, 2027
Days to expiration: 131
Share price: $433.77
Put/call ratio (OI): 0.78
Put/call ratio (volume): 0.23
ATM implied volatility: 38.2%
Expected move: ±$99.22
Open interest (C / P): 76 / 59

WAT options summary

The WAT options chain for the February 19, 2027 expiration lists 17 call and 8 put contracts, with 131 days until expiration. Open interest stands at 76 calls and 59 puts, a put/call ratio of 0.78, which is fairly balanced between calls and puts. At-the-money implied volatility near the $430.00 strike is 38.2%, which implies the market expects a move of about ±$99.22 (22.9%) in Waters stock by expiration.

The most open interest sits at the $420.00 call (18 contracts) and the $370.00 put (21 contracts).

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

WAT options chain · February 19, 2027

WAT 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
0	—	—	202.30	0.00	0.00	210.00	—	—	—	—	—	—
—	—	—	—	—	—	300.00	0.00	4.90	2.00	47.9%	1	7
—	—	—	—	—	—	310.00	0.00	0.00	6.30	12.5%	—	0
—	—	—	—	—	—	320.00	0.05	8.50	4.90	48.9%	—	1
—	—	—	—	—	—	330.00	0.35	9.10	5.80	46.4%	1	2
6	—	27.5%	45.00	70.00	78.00	360.00	12.80	20.00	34.68	50.9%	—	20
4	4	46.7%	75.93	76.30	83.70	370.00	15.00	23.00	39.90	50.4%	—	21
0	1	—	51.83	0.00	0.00	380.00	8.90	18.00	15.44	40.3%	2	8
0	1	44.4%	65.00	61.40	69.00	390.00	—	—	—	—	—	—
1	—	32.4%	36.10	44.20	52.00	400.00	—	—	—	—	—	—
11	4	42.7%	40.70	48.20	56.00	410.00	—	—	—	—	—	—
18	1	41.9%	41.90	42.20	50.00	420.00	—	—	—	—	—	—
7	2	40.7%	39.41	36.30	44.00	430.00	26.50	35.00	33.45	35.6%	2	0
WAT $433.77
2	1	40.2%	36.00	30.90	39.00	440.00	—	—	—	—	—	—
4	3	39.3%	34.00	26.10	34.00	450.00	—	—	—	—	—	—
0	1	39.1%	20.80	21.80	30.00	460.00	—	—	—	—	—	—
5	2	38.5%	26.50	18.10	26.00	470.00	—	—	—	—	—	—
3	1	38.6%	21.00	14.80	23.00	480.00	—	—	—	—	—	—
9	1	37.7%	11.50	11.70	17.00	500.00	—	—	—	—	—	—
1	—	39.5%	4.10	0.05	8.40	560.00	—	—	—	—	—	—
5	4	43.0%	2.50	0.05	6.60	600.00	—	—	—	—	—	—

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 WAT put/call ratio?

For the February 19, 2027 expiration, the WAT put/call ratio based on open interest is 0.78 (59 puts vs 76 calls), and 0.23 based on today's volume. A ratio above 1 means more puts than calls.

What is WAT's implied volatility?

At-the-money implied volatility for WAT options expiring February 19, 2027 is about 38.2%, an annualized estimate of how much the market expects Waters stock to move.

How many WAT option expiration dates are there?

WAT has 5 listed expiration dates, from Oct 16, 2026 to May 21, 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.