Builders FirstSource (BLDR) Options Chain

NYSE: BLDRConsumer DiscretionaryRETAIL: Building MaterialsUSD

52.85-0.96 (-1.78%)

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

Expiration date

Expiration: May 21, 2027
Days to expiration: 223
Share price: $52.85
Put/call ratio (OI): 0.25
Put/call ratio (volume): 0.71
ATM implied volatility: 52.5%
Expected move: ±$21.69
Open interest (C / P): 79 / 20

BLDR options summary

The BLDR options chain for the May 21, 2027 expiration lists 2 call and 6 put contracts, with 223 days until expiration. Open interest stands at 79 calls and 20 puts, a put/call ratio of 0.25, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $55.00 strike is 52.5%, which implies the market expects a move of about ±$21.69 (41.0%) in Builders FirstSource stock by expiration.

The most open interest sits at the $80.00 call (68 contracts) and the $30.00 put (11 contracts).

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

BLDR options chain · May 21, 2027

BLDR 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
—	—	—	—	—	—	30.00	0.85	1.30	0.95	60.9%	—	11
—	—	—	—	—	—	35.00	1.70	2.30	1.50	59.1%	2	2
—	—	—	—	—	—	45.00	4.60	5.40	4.50	55.1%	1	1
BLDR $52.85
—	—	—	—	—	—	55.00	9.30	10.50	9.60	52.5%	1	3
—	—	—	—	—	—	65.00	14.20	17.20	13.57	54.8%	1	1
68	5	58.3%	4.90	2.40	3.40	80.00	—	—	—	—	—	—
—	—	—	—	—	—	85.00	31.40	34.10	28.88	55.1%	—	2
11	2	57.9%	1.90	1.45	2.20	90.00	—	—	—	—	—	—

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 BLDR put/call ratio?

For the May 21, 2027 expiration, the BLDR put/call ratio based on open interest is 0.25 (20 puts vs 79 calls), and 0.71 based on today's volume. A ratio above 1 means more puts than calls.

What is BLDR's implied volatility?

At-the-money implied volatility for BLDR options expiring May 21, 2027 is about 52.5%, an annualized estimate of how much the market expects Builders FirstSource stock to move.

How many BLDR option expiration dates are there?

BLDR has 11 listed expiration dates, from Oct 16, 2026 to Jan 19, 2029.

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.