SL Green Realty (SLG) Options Chain

NYSE: SLGReal EstateReal Estate Investment TrustsUSD

48.41-0.53 (-1.08%)

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

Expiration date

Expiration: Jan 21, 2028
Days to expiration: 468
Share price: $48.41
Put/call ratio (OI): 1.59
Put/call ratio (volume): 5.57
ATM implied volatility: 45.5%
Expected move: ±$24.93
Open interest (C / P): 3.11K / 4.96K

SLG options summary

The SLG options chain for the January 21, 2028 expiration lists 26 call and 24 put contracts, with 468 days until expiration. Open interest stands at 3,112 calls and 4,963 puts, a put/call ratio of 1.59, which is more bearish, with puts outnumbering calls. At-the-money implied volatility near the $47.50 strike is 45.5%, which implies the market expects a move of about ±$24.93 (51.5%) in SL Green Realty stock by expiration.

The most open interest sits at the $80.00 call (906 contracts) and the $50.00 put (1.51K contracts).

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

SLG options chain · January 21, 2028

SLG 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
9	10	83.5%	29.50	26.00	31.00	20.00	0.05	1.20	1.00	54.4%	1	285
2	15	74.3%	27.00	24.50	28.50	22.50	0.00	1.70	1.14	51.9%	4	649
35	11	66.1%	25.00	22.00	26.00	25.00	0.00	3.30	1.71	56.1%	2	413
11	12	56.5%	17.20	21.00	25.50	27.50	0.00	0.00	6.00	12.5%	1	0
311	2	60.3%	23.29	18.00	22.00	30.00	0.45	3.70	1.75	61.2%	1	185
17	22	57.0%	14.91	17.50	22.50	32.50	1.50	4.60	4.00	60.7%	50	82
5	1	100.1%	19.00	23.00	27.50	35.00	0.00	0.00	4.60	6.3%	5	0
108	2	53.2%	15.94	12.30	16.50	37.50	2.05	5.20	3.70	50.9%	1	31
1	2	90.3%	15.70	19.50	24.00	40.00	4.30	5.10	4.60	44.0%	450	1,058
0	8	—	19.62	0.00	0.00	42.50	5.20	6.80	5.30	46.7%	4	38
14	1	47.5%	9.60	8.00	11.70	45.00	6.30	7.90	5.40	45.6%	4	32
17	9	46.4%	9.10	8.30	10.40	47.50	7.40	9.10	7.75	44.6%	2	45
SLG $48.41
257	1	45.8%	8.21	7.20	9.30	50.00	6.90	11.40	9.50	48.2%	1	1,514
268	1	45.3%	7.16	6.20	8.30	52.50	10.50	15.50	13.05	59.8%	2	52
59	15	47.6%	6.60	4.30	8.00	55.00	9.70	14.50	11.00	47.3%	1	401
23	4	47.8%	5.37	3.50	7.30	57.50	11.50	16.00	12.65	46.0%	2	29
54	4	47.1%	5.00	2.75	6.50	60.00	13.10	17.90	15.72	46.3%	1	25
16	1	52.3%	10.10	4.90	9.10	62.50	0.00	0.00	15.58	—	2	0
69	4	46.4%	3.15	2.15	5.20	65.00	0.00	0.00	30.15	—	32	0
0	2	6.3%	7.58	0.00	0.00	67.50	0.00	0.00	33.85	—	2	0
37	1	46.5%	3.25	1.25	4.30	70.00	22.00	27.00	24.25	52.0%	10	121
0	1	6.3%	7.30	0.00	0.00	72.50	0.00	0.00	32.30	—	170	0
2	—	53.0%	5.50	1.95	4.80	75.00	25.50	30.00	25.81	45.9%	1	1
906	3	50.4%	4.60	0.05	3.60	80.00	—	—	—	—	—	—
0	1	12.5%	3.30	0.00	0.00	85.00	—	—	—	—	—	—
891	2	54.1%	1.65	0.00	3.20	90.00	40.50	46.50	45.80	63.6%	3	2

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 SLG put/call ratio?

For the January 21, 2028 expiration, the SLG put/call ratio based on open interest is 1.59 (4,963 puts vs 3,112 calls), and 5.57 based on today's volume. A ratio above 1 means more puts than calls.

What is SLG's implied volatility?

At-the-money implied volatility for SLG options expiring January 21, 2028 is about 45.5%, an annualized estimate of how much the market expects SL Green Realty stock to move.

How many SLG option expiration dates are there?

SLG has 7 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.