Steel Dynamics (STLD) Options Chain

NASDAQ: STLDIndustrialsSteel/Iron OreUSD

238.38+4.21 (+1.80%)

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

After hours: 238.38 0.00%

Expiration date

Expiration: Oct 16, 2026
Days to expiration: 7
Share price: $238.38
Put/call ratio (OI): 0.39
Put/call ratio (volume): 0.77
ATM implied volatility: 41.5%
Expected move: ±$13.71
Open interest (C / P): 1.89K / 733

STLD options summary

The STLD options chain for the October 16, 2026 expiration lists 18 call and 16 put contracts, with 7 days until expiration. Open interest stands at 1,885 calls and 733 puts, a put/call ratio of 0.39, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $240.00 strike is 41.5%, which implies the market expects a move of about ±$13.71 (5.7%) in Steel Dynamics stock by expiration.

The most open interest sits at the $240.00 call (391 contracts) and the $220.00 put (202 contracts).

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

STLD options chain · October 16, 2026

STLD 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
—	—	—	—	—	—	165.00	0.00	2.10	0.50	155.2%	—	1
1	1	82.0%	71.60	66.50	70.30	170.00	0.00	2.15	0.53	145.4%	1	1
—	—	—	—	—	—	175.00	0.00	2.15	0.14	135.1%	1	2
—	—	—	—	—	—	180.00	0.00	2.15	0.05	125.0%	1	1
—	—	—	—	—	—	185.00	0.00	0.00	2.12	25.0%	1	0
—	—	—	—	—	—	190.00	0.00	2.15	0.45	105.3%	1	5
1	1	80.0%	48.80	42.20	45.50	195.00	0.00	2.15	0.12	95.7%	6	5
3	1	59.7%	40.61	37.20	39.90	200.00	0.00	0.40	0.15	61.3%	1	39
1	9	77.2%	26.60	26.60	30.10	210.00	0.00	0.40	0.10	53.2%	1	177
34	3	66.3%	24.76	17.70	21.00	220.00	0.25	1.85	0.55	58.0%	38	202
65	4	43.4%	10.57	9.50	11.10	230.00	1.45	2.35	1.80	40.3%	62	196
STLD $238.38
391	29	38.0%	3.97	3.60	4.60	240.00	3.90	7.20	5.50	45.0%	3	30
383	14	41.6%	1.75	0.10	1.90	250.00	11.20	14.40	13.87	49.5%	1	74
348	1	44.2%	0.55	0.20	0.70	260.00	20.80	24.00	19.80	64.8%	—	0
372	1	46.7%	0.36	0.05	0.25	270.00	29.70	33.70	37.50	77.8%	30	0
96	1	58.5%	0.43	0.00	0.55	280.00	—	—	—	—	—	—
40	6	89.6%	0.05	0.00	2.15	290.00	—	—	—	—	—	—
39	10	101.0%	0.30	0.00	2.15	300.00	—	—	—	—	—	—
41	41	111.8%	0.50	0.00	2.15	310.00	69.80	73.60	69.80	73.8%	1	0
30	30	122.0%	0.40	0.00	2.15	320.00	—	—	—	—	—	—
10	10	131.6%	0.15	0.00	2.15	330.00	—	—	—	—	—	—
20	20	140.2%	0.12	0.00	2.10	340.00	—	—	—	—	—	—
10	10	149.7%	0.30	0.00	2.15	350.00	—	—	—	—	—	—

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 STLD put/call ratio?

For the October 16, 2026 expiration, the STLD put/call ratio based on open interest is 0.39 (733 puts vs 1,885 calls), and 0.77 based on today's volume. A ratio above 1 means more puts than calls.

What is STLD's implied volatility?

At-the-money implied volatility for STLD options expiring October 16, 2026 is about 41.5%, an annualized estimate of how much the market expects Steel Dynamics stock to move.

How many STLD option expiration dates are there?

STLD has 11 listed expiration dates, from Oct 16, 2026 to Dec 15, 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.