RBBN · Ribbon Communications Inc.

Track RBBN — free

$2.11 +0.00 (+0.00%) At close · Aug 14

Market Cap

$377.32M

178.82M

Options Chain

Underlying $2.11 · at close Aug 14, 2026 Options Calculator

Positioning

Aug 21, 2026 · 5 days to expiry · 6 contracts · mixed snapshot sessions · Jul 28, 2026–Aug 12, 2026; 2 unknown

Put / call OI

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dated and unknown snapshot sessions

Open interest

—

dated and unknown snapshot sessions

Volume

—

dated and unknown snapshot sessions

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Aug 21 5d Sep 18 33d Oct 16 61d Jan 15 152d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
Underlying $2.11
133	1	224.5%	0.303	$0.05		$0.05	—	—	7	6
Call · $2.5 Snapshot session Aug 12, 2026 Last $0.05 Breakeven $2.55 Implied vol 224.5% Delta 0.303 ≈30% ITM Gamma 0.595 Theta -0.018 Vega 0.001 Open interest 133 Model this call Put · $2.5 In the money Snapshot session Aug 4, 2026 Last $0.05 Breakeven $2.45 Implied vol — Delta — Gamma — Theta — Vega — Open interest 6 Model this put
12	12	—	—	$0.04		—	—	—	—	0
Call · $5 Snapshot session Jul 28, 2026 Last $0.04 Breakeven $5.04 Implied vol — Delta — Gamma — Theta — Vega — Open interest 12 Model this call Put · $5 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
2	1	—	—	$0.05		—	—	—	—	0
Call · $7.5 Snapshot session Aug 4, 2026 Last $0.05 Breakeven $7.55 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2 Model this call Put · $7.5 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put

About this data

Each contract's last price, volume, greeks, implied volatility and open interest belongs to the snapshot session shown in its details; unknown means the provider omitted the timestamp. This chain has mixed snapshot sessions · Jul 28, 2026–Aug 12, 2026; 2 unknown. Cross-contract positioning totals are shown only when every returned row has the same known session. Bid and ask are not included on this plan.

In-the-money strikes are tinted, deepening toward the money, and the bar beside each open-interest figure scales to the heaviest strike shown.

Key facts CIK 1708055 CUSIP 762544104 13F (30d) 149 filings 149 filers Visit website Investor relations