KRC · Kilroy Realty Corp · Options Chain

Track KRC — free

$34.23 -0.19 (-0.55%) At close · Sep 18

S&P 400 member Russell 1000 member Rebalance outlook locked

Market Cap

$3.98B

116.28M

Options Chain

Underlying $34.23 · at close Sep 18, 2026 Options Calculator

Pull option chains with greeks and open interest through the options chain API or MCP →

Positioning

Oct 16, 2026 · 25 days to expiry · 26 contracts · mixed daily-bar sessions · Sep 10, 2026–Sep 18, 2026; 20 unknown

Put / call OI

1.09

Balanced positioning

Open interest

950

as of Sep 17, 2026

Volume

—

dated and unknown daily-bar sessions

Max pain

$35.00

$0.77 above spot

ATM implied vol

49.5%

market's expected move

Open interest by strike

Calls Puts

22.5

27.5

32.5

37.5

42.5

47.5

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Oct 16 25d Nov 20 60d Jan 15 116d Feb 19 151d May 21 242d

Calls								Puts
OI	Vol	IV	Δ	Bid	Ask	Last	Strike	Last	Bid	Ask	Δ	IV	Vol	OI
—	—	—	—	$12.20	$16.40	—		—	$0.00	$0.25	—	—	—	—
Call · $20 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:59:19.082 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $20 Daily-bar session Unknown Quote as of 2026-09-18 17:15:11.677 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$9.70	$13.20	—		—	$0.00	$0.95	—	—	—	—
Call · $22.5 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:59:54.991 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $22.5 Daily-bar session Unknown Quote as of 2026-09-18 19:59:19.083 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	61.9%	0.977	$7.90	$10.80	—		—	$0.00	$0.80	—	—	—	—
Call · $25 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:59:50.424 UTC Last — Breakeven — Implied vol 61.9% Delta 0.977 ≈98% ITM Gamma 0.01 Theta -0.008 Vega 0.005 Open interest — OI effective date — Model this call Put · $25 Daily-bar session Unknown Quote as of 2026-09-18 19:59:18.844 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	44.5%	0.973	$5.40	$8.30	—		—	$0.00	$1.25	—	—	—	—
Call · $27.5 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:59:56.994 UTC Last — Breakeven — Implied vol 44.5% Delta 0.973 ≈97% ITM Gamma 0.015 Theta -0.008 Vega 0.006 Open interest — OI effective date — Model this call Put · $27.5 Daily-bar session Unknown Quote as of 2026-09-18 19:59:19.082 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$2.85	$5.60	—		$0.80	$0.00	$2.30	—	—	450	450
Call · $30 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:59:34.803 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $30 Daily-bar session Sep 10, 2026 Quote as of 2026-09-18 19:59:59.767 UTC Last $0.80 Breakeven $29.20 Implied vol — Delta — Gamma — Theta — Vega — Open interest 450 OI effective date Sep 17, 2026 Model this put
—	—	29.6%	0.768	$0.80	$3.60	—		$0.55	$0.05	$1.35	-0.287	40.3%	21	40
Call · $32.5 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:59:19.550 UTC Last — Breakeven — Implied vol 29.6% Delta 0.768 ≈77% ITM Gamma 0.113 Theta -0.018 Vega 0.028 Open interest — OI effective date — Model this call Put · $32.5 Daily-bar session Sep 18, 2026 Quote as of 2026-09-18 19:59:19.550 UTC Last $0.55 Breakeven $31.95 Implied vol 40.3% Delta -0.287 ≈29% ITM Gamma 0.093 Theta -0.023 Vega 0.031 Open interest 40 OI effective date Sep 17, 2026 Model this put
Underlying $34.23
1	1	—	—	$0.00	$1.25	$0.70		$1.45	$0.45	$3.90	-0.533	49.5%	2	5
Call · $35 Daily-bar session Sep 18, 2026 Quote as of 2026-09-18 19:59:19.130 UTC Last $0.70 Breakeven $35.70 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 17, 2026 Model this call Put · $35 In the money Daily-bar session Sep 17, 2026 Quote as of 2026-09-18 19:59:19.851 UTC Last $1.45 Breakeven $33.55 Implied vol 49.5% Delta -0.533 ≈53% ITM Gamma 0.088 Theta -0.032 Vega 0.036 Open interest 5 OI effective date Sep 17, 2026 Model this put
3	3	—	—	$0.00	$1.75	$0.50		—	$3.10	$5.40	-0.677	61.3%	—	—
Call · $37.5 Daily-bar session Sep 14, 2026 Quote as of 2026-09-18 19:59:19.274 UTC Last $0.50 Breakeven $38.00 Implied vol — Delta — Gamma — Theta — Vega — Open interest 3 OI effective date Sep 17, 2026 Model this call Put · $37.5 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:59:20.276 UTC Last — Breakeven — Implied vol 61.3% Delta -0.677 ≈68% ITM Gamma 0.064 Theta -0.036 Vega 0.033 Open interest — OI effective date — Model this put
451	450	—	—	$0.00	$1.10	$0.80		—	$5.10	$7.50	-0.791	64.1%	—	—
Call · $40 Daily-bar session Sep 10, 2026 Quote as of 2026-09-18 19:59:57.207 UTC Last $0.80 Breakeven $40.80 Implied vol — Delta — Gamma — Theta — Vega — Open interest 451 OI effective date Sep 17, 2026 Model this call Put · $40 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:59:46.146 UTC Last — Breakeven — Implied vol 64.1% Delta -0.791 ≈79% ITM Gamma 0.049 Theta -0.029 Vega 0.026 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$1.75	—		—	$7.90	$9.40	-0.844	72.4%	—	—
Call · $42.5 Daily-bar session Unknown Quote as of 2026-09-18 19:59:19.083 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $42.5 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:59:19.224 UTC Last — Breakeven — Implied vol 72.4% Delta -0.844 ≈84% ITM Gamma 0.036 Theta -0.027 Vega 0.022 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$1.75	—		—	$10.00	$12.40	-0.852	87.5%	—	—
Call · $45 Daily-bar session Unknown Quote as of 2026-09-18 19:59:19.083 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $45 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:59:19.082 UTC Last — Breakeven — Implied vol 87.5% Delta -0.852 ≈85% ITM Gamma 0.029 Theta -0.031 Vega 0.021 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$1.75	—		—	$12.00	$15.10	-0.888	91.2%	—	—
Call · $47.5 Daily-bar session Unknown Quote as of 2026-09-18 19:59:19.082 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $47.5 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:59:19.082 UTC Last — Breakeven — Implied vol 91.2% Delta -0.888 ≈89% ITM Gamma 0.023 Theta -0.026 Vega 0.018 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.95	—		—	$14.90	$18.30	—	—	—	—
Call · $50 Daily-bar session Unknown Quote as of 2026-09-18 19:59:19.082 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $50 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:59:19.082 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put

About this data

Each contract's last price, day range and volume belong to the daily-bar session shown in its details; unknown means the source omitted that timestamp. Open interest has its own effective date shown separately; implied volatility and greeks are model values computed when fetched. This chain has mixed daily-bar sessions · Sep 10, 2026–Sep 18, 2026; 20 unknown. Positioning totals are shown only when every returned open-interest value has the same known effective date. Bid and ask are real-time consolidated OPRA readings.

In-the-money strikes are tinted, deepening toward the money, and the bar beside each open-interest figure scales to the heaviest strike shown. Max pain is the listed strike where the most open interest would expire worthless — a positioning reference, not a forecast.

Key facts CIK 1025996 CUSIP 49427F108 13F (30d) 10 filings 10 filers Visit website Investor relations