BAND · Bandwidth Inc. · Options Chain

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$56.87 +5.25 (+10.17%) At close · Sep 11

Russell 2000 member Rebalance outlook locked

Market Cap

$1.83B

32.18M

Options Chain

Underlying $56.87 · at close Sep 11, 2026 Options Calculator

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Positioning

Sep 18, 2026 · 5 days to expiry · 42 contracts · mixed daily-bar sessions · Jul 24, 2026–Sep 11, 2026; 16 unknown

Put / call OI

3.04

Put-heavy positioning

Open interest

3,906

as of Sep 10, 2026

Volume

—

dated and unknown daily-bar sessions

Max pain

$50.00

$6.87 below spot

ATM implied vol

113.6%

market's expected move

Open interest by strike

Calls Puts

22.5

100

105

110

115

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Sep 18 5d Oct 16 33d Nov 20 68d Feb 19 159d Mar 19 187d

Calls								Puts
OI	Vol	IV	Δ	Bid	Ask	Last	Strike	Last	Bid	Ask	Δ	IV	Vol	OI
1	1	—	—	$34.90	$38.60	$24.64		—	$0.00	$2.15	—	—	—	—
Call · $20 In the money Daily-bar session Sep 9, 2026 Quote as of 2026-09-11 19:59:33.439 UTC Last $24.64 Breakeven $44.64 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 10, 2026 Model this call Put · $20 Daily-bar session Unknown Quote as of 2026-09-11 19:59:33.171 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
2	2	—	—	$32.40	$36.10	$22.30		—	$0.00	$2.15	—	—	—	—
Call · $22.5 In the money Daily-bar session Sep 9, 2026 Quote as of 2026-09-11 19:59:35.577 UTC Last $22.30 Breakeven $44.80 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2 OI effective date Sep 10, 2026 Model this call Put · $22.5 Daily-bar session Unknown Quote as of 2026-09-11 19:59:33.170 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
5	2	—	—	$29.90	$33.60	$21.25		—	$0.00	$0.05	—	—	—	—
Call · $25 In the money Daily-bar session Sep 9, 2026 Quote as of 2026-09-11 19:59:15.574 UTC Last $21.25 Breakeven $46.25 Implied vol — Delta — Gamma — Theta — Vega — Open interest 5 OI effective date Sep 10, 2026 Model this call Put · $25 Daily-bar session Unknown Quote as of 2026-09-11 13:30:08.023 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
1	1	—	—	$24.90	$28.20	$10.50		$0.10	$0.00	$0.05	—	—	3	23
Call · $30 In the money Daily-bar session Jul 30, 2026 Quote as of 2026-09-11 19:59:35.537 UTC Last $10.50 Breakeven $40.50 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 10, 2026 Model this call Put · $30 Daily-bar session Aug 19, 2026 Quote as of 2026-09-11 13:30:08.023 UTC Last $0.10 Breakeven $29.90 Implied vol — Delta — Gamma — Theta — Vega — Open interest 23 OI effective date Sep 10, 2026 Model this put
1	2	—	—	$20.70	$22.70	$6.70		$0.63	$0.00	$0.35	—	—	6	28
Call · $35 In the money Daily-bar session Jul 31, 2026 Quote as of 2026-09-11 19:59:35.721 UTC Last $6.70 Breakeven $41.70 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 10, 2026 Model this call Put · $35 Daily-bar session Aug 27, 2026 Quote as of 2026-09-11 19:59:33.316 UTC Last $0.63 Breakeven $34.37 Implied vol — Delta — Gamma — Theta — Vega — Open interest 28 OI effective date Sep 10, 2026 Model this put
9	1	—	—	$15.70	$18.00	$13.20		$0.10	$0.00	$0.10	—	—	80	66
Call · $40 In the money Daily-bar session Aug 12, 2026 Quote as of 2026-09-11 19:59:50.422 UTC Last $13.20 Breakeven $53.20 Implied vol — Delta — Gamma — Theta — Vega — Open interest 9 OI effective date Sep 10, 2026 Model this call Put · $40 Daily-bar session Sep 11, 2026 Quote as of 2026-09-11 19:59:59.995 UTC Last $0.10 Breakeven $39.90 Implied vol — Delta — Gamma — Theta — Vega — Open interest 66 OI effective date Sep 10, 2026 Model this put
66	1	—	—	$9.90	$13.40	$12.00		$0.05	$0.00	$0.05	—	—	67	2.6k
Call · $45 In the money Daily-bar session Sep 11, 2026 Quote as of 2026-09-11 19:59:59.995 UTC Last $12.00 Breakeven $57.00 Implied vol — Delta — Gamma — Theta — Vega — Open interest 66 OI effective date Sep 10, 2026 Model this call Put · $45 Daily-bar session Sep 11, 2026 Quote as of 2026-09-11 19:58:19.378 UTC Last $0.05 Breakeven $44.95 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2.6k OI effective date Sep 10, 2026 Model this put
268	13	108.2%	0.825	$5.40	$8.90	$6.40		$0.48	$0.00	$0.75	—	—	4	250
Call · $50 In the money Daily-bar session Sep 11, 2026 Quote as of 2026-09-11 19:59:59.995 UTC Last $6.40 Breakeven $56.40 Implied vol 108.2% Delta 0.825 ≈82% ITM Gamma 0.033 Theta -0.172 Vega 0.019 Open interest 268 OI effective date Sep 10, 2026 Model this call Put · $50 Daily-bar session Sep 11, 2026 Quote as of 2026-09-11 19:59:33.318 UTC Last $0.48 Breakeven $49.52 Implied vol — Delta — Gamma — Theta — Vega — Open interest 250 OI effective date Sep 10, 2026 Model this put
59	61	118.7%	0.594	$3.20	$5.00	$3.52		$2.90	$1.50	$3.40	-0.403	108.5%	1	—
Call · $55 In the money Daily-bar session Sep 11, 2026 Quote as of 2026-09-11 19:59:59.927 UTC Last $3.52 Breakeven $58.52 Implied vol 118.7% Delta 0.594 ≈59% ITM Gamma 0.045 Theta -0.28 Vega 0.028 Open interest 59 OI effective date Sep 10, 2026 Model this call Put · $55 Daily-bar session Sep 11, 2026 Quote as of 2026-09-11 19:59:59.995 UTC Last $2.90 Breakeven $52.10 Implied vol 108.5% Delta -0.403 ≈40% ITM Gamma 0.049 Theta -0.25 Vega 0.028 Open interest — OI effective date — Model this put
Underlying $56.87
496	11	81.4%	0.292	$0.05	$2.00	$0.93		$10.30	$4.10	$6.40	-0.656	104.4%	1	2
Call · $60 Daily-bar session Sep 11, 2026 Quote as of 2026-09-11 19:59:59.995 UTC Last $0.93 Breakeven $60.93 Implied vol 81.4% Delta 0.292 ≈29% ITM Gamma 0.058 Theta -0.17 Vega 0.025 Open interest 496 OI effective date Sep 10, 2026 Model this call Put · $60 In the money Daily-bar session Sep 10, 2026 Quote as of 2026-09-11 19:59:59.995 UTC Last $10.30 Breakeven $49.70 Implied vol 104.4% Delta -0.656 ≈66% ITM Gamma 0.049 Theta -0.227 Vega 0.027 Open interest 2 OI effective date Sep 10, 2026 Model this put
21	1	—	—	$0.00	$1.05	$0.39		$9.80	$8.00	$10.60	-0.83	108.6%	20	1
Call · $65 Daily-bar session Sep 11, 2026 Quote as of 2026-09-11 19:59:35.577 UTC Last $0.39 Breakeven $65.39 Implied vol — Delta — Gamma — Theta — Vega — Open interest 21 OI effective date Sep 10, 2026 Model this call Put · $65 In the money Daily-bar session Sep 11, 2026 Quote as of 2026-09-11 19:59:59.995 UTC Last $9.80 Breakeven $55.20 Implied vol 108.6% Delta -0.83 ≈83% ITM Gamma 0.032 Theta -0.16 Vega 0.018 Open interest 1 OI effective date Sep 10, 2026 Model this put
5	1	—	—	$0.00	$0.40	$0.20		—	$12.60	$15.30	—	—	—	—
Call · $70 Daily-bar session Sep 11, 2026 Quote as of 2026-09-11 13:36:41.495 UTC Last $0.20 Breakeven $70.20 Implied vol — Delta — Gamma — Theta — Vega — Open interest 5 OI effective date Sep 10, 2026 Model this call Put · $70 In the money Daily-bar session Unknown Quote as of 2026-09-11 19:59:33.171 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.80	—		—	$16.60	$20.20	—	—	—	—
Call · $75 Daily-bar session Unknown Quote as of 2026-09-11 19:59:33.316 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $75 In the money Daily-bar session Unknown Quote as of 2026-09-11 19:59:35.721 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
20	30	—	—	$0.00	$1.40	$0.17		—	$21.40	$25.10	—	—	—	—
Call · $80 Daily-bar session Jul 29, 2026 Quote as of 2026-09-11 19:59:32.918 UTC Last $0.17 Breakeven $80.17 Implied vol — Delta — Gamma — Theta — Vega — Open interest 20 OI effective date Sep 10, 2026 Model this call Put · $80 In the money Daily-bar session Unknown Quote as of 2026-09-11 19:59:35.878 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
2	1	—	—	$0.00	$1.75	$2.10		—	$26.40	$30.20	—	—	—	—
Call · $85 Daily-bar session Jul 28, 2026 Quote as of 2026-09-11 19:59:50.801 UTC Last $2.10 Breakeven $87.10 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2 OI effective date Sep 10, 2026 Model this call Put · $85 In the money Daily-bar session Unknown Quote as of 2026-09-11 19:59:58.937 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
4	3	—	—	$0.00	$1.15	$1.30		—	$31.60	$34.30	—	—	—	—
Call · $90 Daily-bar session Jul 28, 2026 Quote as of 2026-09-11 19:59:32.401 UTC Last $1.30 Breakeven $91.30 Implied vol — Delta — Gamma — Theta — Vega — Open interest 4 OI effective date Sep 10, 2026 Model this call Put · $90 In the money Daily-bar session Unknown Quote as of 2026-09-11 19:59:42.261 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
1	1	—	—	$0.00	$1.15	$2.25		—	$36.40	$40.20	—	—	—	—
Call · $95 Daily-bar session Jul 24, 2026 Quote as of 2026-09-11 19:59:32.919 UTC Last $2.25 Breakeven $97.25 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 10, 2026 Model this call Put · $95 In the money Daily-bar session Unknown Quote as of 2026-09-11 19:59:58.518 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
3	3	—	—	$0.00	$1.15	$2.05		—	$41.50	$45.10	—	—	—	—
Call · $100 Daily-bar session Jul 24, 2026 Quote as of 2026-09-11 19:59:32.919 UTC Last $2.05 Breakeven $102.05 Implied vol — Delta — Gamma — Theta — Vega — Open interest 3 OI effective date Sep 10, 2026 Model this call Put · $100 In the money Daily-bar session Unknown Quote as of 2026-09-11 19:58:51.590 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.95	—		—	$46.90	$50.10	—	—	—	—
Call · $105 Daily-bar session Unknown Quote as of 2026-09-11 19:57:11.455 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $105 In the money Daily-bar session Unknown Quote as of 2026-09-11 19:58:22.943 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
2	1	—	—	$0.00	$1.35	$0.90		—	$51.50	$55.10	—	—	—	—
Call · $110 Daily-bar session Jul 27, 2026 Quote as of 2026-09-11 19:57:59.152 UTC Last $0.90 Breakeven $110.90 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2 OI effective date Sep 10, 2026 Model this call Put · $110 In the money Daily-bar session Unknown Quote as of 2026-09-11 19:59:08.902 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$1.95	—		—	$56.50	$60.10	—	—	—	—
Call · $115 Daily-bar session Unknown Quote as of 2026-09-11 19:59:53.112 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $115 In the money Daily-bar session Unknown Quote as of 2026-09-11 19:59:23.055 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 · Jul 24, 2026–Sep 11, 2026; 16 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 1514416 CUSIP 05988J103 13F (30d) 80 filings 80 filers Visit website Investor relations