State Street (STT) Options Chain

NYSE: STTFinanceMajor BanksUSD

175.21+1.01 (+0.58%)

Market open · Delayed 15 min · as of Oct 8, 1:47 PM ET

Expiration date

Expiration: Oct 16, 2026
Days to expiration: 8
Share price: $175.00
Put/call ratio (OI): 0.71
Put/call ratio (volume): 0.75
ATM implied volatility: 42.9%
Expected move: ±$11.11
Open interest (C / P): 2.44K / 1.73K

STT options summary

The STT options chain for the October 16, 2026 expiration lists 13 call and 13 put contracts, with 8 days until expiration. Open interest stands at 2,441 calls and 1,733 puts, a put/call ratio of 0.71, which is fairly balanced between calls and puts. At-the-money implied volatility near the $175.00 strike is 42.9%, which implies the market expects a move of about ±$11.11 (6.3%) in State Street stock by expiration.

The most open interest sits at the $190.00 call (535 contracts) and the $180.00 put (340 contracts).

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

STT options chain · October 16, 2026

STT 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
2	—	111.2%	33.85	33.40	36.30	140.00	—	—	—	—	—	—
—	—	—	—	—	—	150.00	0.00	0.30	0.30	52.0%	16	20
—	—	—	—	—	—	155.00	0.05	0.90	0.45	53.9%	13	183
1	—	63.8%	15.81	14.00	16.70	160.00	0.45	1.55	1.35	53.0%	1	131
375	1	53.0%	13.10	9.90	12.00	165.00	1.05	1.40	1.45	45.5%	37	38
15	1	46.4%	5.90	7.20	7.90	170.00	2.30	2.60	2.95	43.3%	1	166
STT $175.00
331	21	42.9%	3.97	4.40	4.70	175.00	4.20	4.70	5.25	42.9%	1	183
204	1	42.6%	1.98	2.35	2.65	180.00	7.30	7.90	8.15	45.0%	1	340
261	20	41.7%	1.35	1.15	1.30	185.00	10.30	12.10	10.35	51.3%	1	240
535	28	49.4%	0.60	0.55	1.05	190.00	14.70	17.30	17.00	66.1%	1	254
163	20	54.0%	0.62	0.30	0.75	195.00	19.20	22.00	13.63	50.9%	1	166
241	10	51.1%	0.36	0.10	0.50	200.00	24.20	26.80	25.04	57.0%	5	12
302	1	69.1%	0.33	0.05	0.75	210.00	—	—	—	—	—	—
10	2	81.7%	0.25	0.00	0.75	220.00	—	—	—	—	—	—
1	1	95.3%	0.37	0.00	0.80	230.00	54.00	56.80	53.00	95.3%	1	0
—	—	—	—	—	—	240.00	63.90	66.80	45.40	104.7%	1	0

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 STT put/call ratio?

For the October 16, 2026 expiration, the STT put/call ratio based on open interest is 0.71 (1,733 puts vs 2,441 calls), and 0.75 based on today's volume. A ratio above 1 means more puts than calls.

What is STT's implied volatility?

At-the-money implied volatility for STT options expiring October 16, 2026 is about 42.9%, an annualized estimate of how much the market expects State Street stock to move.

How many STT option expiration dates are there?

STT has 10 listed expiration dates, from Oct 16, 2026 to Jan 21, 2028.

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.