BL · Blackline, Inc. · Options Chain

Track BL — free

$28.35 -0.40 (-1.39%) At close · Sep 11

S&P 600 member Russell 2000 member Rebalance outlook locked

Market Cap

$1.65B

58.13M

Options Chain

Underlying $28.35 · at close Sep 11, 2026 Options Calculator

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

Positioning

Sep 18, 2026 · 5 days to expiry · 28 contracts · mixed daily-bar sessions · Aug 24, 2026–Sep 11, 2026; 13 unknown

Put / call OI

0.43

Call-heavy positioning

Open interest

1,113

as of Sep 10, 2026

Volume

—

dated and unknown daily-bar sessions

Max pain

$30.00

$1.65 above spot

ATM implied vol

60.5%

market's expected move

Open interest by strike

Calls Puts

17.5

22.5

27.5

32.5

37.5

42.5

47.5

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Sep 18 5d Oct 16 33d Nov 20 68d Dec 18 96d Jan 15 124d Feb 19 159d Mar 19 187d Dec 17 460d

Calls								Puts
OI	Vol	IV	Δ	Bid	Ask	Last	Strike	Last	Bid	Ask	Δ	IV	Vol	OI
—	—	—	—	$11.40	$15.50	—		—	$0.00	$1.35	—	—	—	—
Call · $15 In the money Daily-bar session Unknown Quote as of 2026-09-11 19:55:09.595 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $15 Daily-bar session Unknown Quote as of 2026-09-11 19:59:59.958 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$9.60	$13.00	—		—	$0.00	$2.15	—	—	—	—
Call · $17.5 In the money Daily-bar session Unknown Quote as of 2026-09-11 19:59:59.378 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $17.5 Daily-bar session Unknown Quote as of 2026-09-11 19:59:59.958 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$7.10	$10.50	—		—	$0.00	$1.60	—	—	—	—
Call · $20 In the money Daily-bar session Unknown Quote as of 2026-09-11 19:59:59.378 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 2026-09-11 19:59:59.958 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$4.60	$7.30	—		$0.91	$0.00	$2.15	—	—	3	71
Call · $22.5 In the money Daily-bar session Unknown Quote as of 2026-09-11 19:59:59.888 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $22.5 Daily-bar session Aug 28, 2026 Quote as of 2026-09-11 19:59:59.378 UTC Last $0.91 Breakeven $21.59 Implied vol — Delta — Gamma — Theta — Vega — Open interest 71 OI effective date Sep 10, 2026 Model this put
20	20	120.4%	0.839	$2.15	$5.50	$9.06		$0.10	$0.00	$0.25	—	—	3	101
Call · $25 In the money Daily-bar session Aug 28, 2026 Quote as of 2026-09-11 19:59:59.956 UTC Last $9.06 Breakeven $34.06 Implied vol 120.4% Delta 0.839 ≈84% ITM Gamma 0.061 Theta -0.1 Vega 0.008 Open interest 20 OI effective date Sep 10, 2026 Model this call Put · $25 Daily-bar session Sep 9, 2026 Quote as of 2026-09-11 19:59:57.437 UTC Last $0.10 Breakeven $24.90 Implied vol — Delta — Gamma — Theta — Vega — Open interest 101 OI effective date Sep 10, 2026 Model this put
112	3	—	—	$0.00	$3.30	$5.64		$0.47	$0.30	$0.50	-0.301	60.5%	1	18
Call · $27.5 In the money Daily-bar session Aug 31, 2026 Quote as of 2026-09-11 19:59:59.960 UTC Last $5.64 Breakeven $33.14 Implied vol — Delta — Gamma — Theta — Vega — Open interest 112 OI effective date Sep 10, 2026 Model this call Put · $27.5 Daily-bar session Sep 10, 2026 Quote as of 2026-09-11 19:59:59.578 UTC Last $0.47 Breakeven $27.03 Implied vol 60.5% Delta -0.301 ≈30% ITM Gamma 0.173 Theta -0.069 Vega 0.012 Open interest 18 OI effective date Sep 10, 2026 Model this put
Underlying $28.35
150	6	—	—	$0.00	$2.30	$1.01		$1.80	$0.65	$3.40	-0.697	80%	1	97
Call · $30 Daily-bar session Sep 9, 2026 Quote as of 2026-09-11 19:59:59.958 UTC Last $1.01 Breakeven $31.01 Implied vol — Delta — Gamma — Theta — Vega — Open interest 150 OI effective date Sep 10, 2026 Model this call Put · $30 In the money Daily-bar session Sep 10, 2026 Quote as of 2026-09-11 19:59:59.958 UTC Last $1.80 Breakeven $28.20 Implied vol 80% Delta -0.697 ≈70% ITM Gamma 0.131 Theta -0.091 Vega 0.012 Open interest 97 OI effective date Sep 10, 2026 Model this put
40	1	—	—	$0.00	$2.15	$0.65		$4.30	$2.70	$4.80	—	—	2	47
Call · $32.5 Daily-bar session Sep 10, 2026 Quote as of 2026-09-11 19:50:08.172 UTC Last $0.65 Breakeven $33.15 Implied vol — Delta — Gamma — Theta — Vega — Open interest 40 OI effective date Sep 10, 2026 Model this call Put · $32.5 In the money Daily-bar session Sep 11, 2026 Quote as of 2026-09-11 19:59:59.959 UTC Last $4.30 Breakeven $28.20 Implied vol — Delta — Gamma — Theta — Vega — Open interest 47 OI effective date Sep 10, 2026 Model this put
373	50	—	—	$0.00	$2.00	$0.05		$2.25	$4.60	$8.10	—	—	1	1
Call · $35 Daily-bar session Sep 10, 2026 Quote as of 2026-09-11 19:49:55.332 UTC Last $0.05 Breakeven $35.05 Implied vol — Delta — Gamma — Theta — Vega — Open interest 373 OI effective date Sep 10, 2026 Model this call Put · $35 In the money Daily-bar session Aug 27, 2026 Quote as of 2026-09-11 19:59:51.803 UTC Last $2.25 Breakeven $32.75 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 10, 2026 Model this put
44	4	—	—	$0.00	$0.75	$0.40		—	$7.00	$10.50	—	—	—	—
Call · $37.5 Daily-bar session Aug 28, 2026 Quote as of 2026-09-11 13:49:36.134 UTC Last $0.40 Breakeven $37.90 Implied vol — Delta — Gamma — Theta — Vega — Open interest 44 OI effective date Sep 10, 2026 Model this call Put · $37.5 In the money Daily-bar session Unknown Quote as of 2026-09-11 19:59:59.370 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
7	3	—	—	$0.00	$1.00	$0.20		—	$9.50	$12.60	—	—	—	—
Call · $40 Daily-bar session Sep 10, 2026 Quote as of 2026-09-11 18:02:50.977 UTC Last $0.20 Breakeven $40.20 Implied vol — Delta — Gamma — Theta — Vega — Open interest 7 OI effective date Sep 10, 2026 Model this call Put · $40 In the money Daily-bar session Unknown Quote as of 2026-09-11 19:58:31.676 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
12	12	—	—	$0.00	$2.15	$0.32		—	$12.00	$15.70	—	—	—	—
Call · $42.5 Daily-bar session Aug 24, 2026 Quote as of 2026-09-11 19:49:55.332 UTC Last $0.32 Breakeven $42.82 Implied vol — Delta — Gamma — Theta — Vega — Open interest 12 OI effective date Sep 10, 2026 Model this call Put · $42.5 In the money Daily-bar session Unknown Quote as of 2026-09-11 19:58:31.688 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
20	20	—	—	$0.00	$2.15	$0.28		—	$14.50	$18.60	—	—	—	—
Call · $45 Daily-bar session Aug 24, 2026 Quote as of 2026-09-11 19:49:55.332 UTC Last $0.28 Breakeven $45.28 Implied vol — Delta — Gamma — Theta — Vega — Open interest 20 OI effective date Sep 10, 2026 Model this call Put · $45 In the money Daily-bar session Unknown Quote as of 2026-09-11 19:59:59.366 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$2.15	—		—	$17.00	$21.10	—	—	—	—
Call · $47.5 Daily-bar session Unknown Quote as of 2026-09-11 19:02:05.449 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 2026-09-11 19:55:55.572 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 · Aug 24, 2026–Sep 11, 2026; 13 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 1666134 CUSIP 09239B109 13F (30d) 63 filings 63 filers Visit website Investor relations