SPOK · Spok Holdings, Inc

Track SPOK — free Ask ALVIS about SPOK

$10.60 +0.09 (+0.81%) At close · Jul 24

Market Cap

$221.19M

20.89M

Options Chain

15-min delayed Underlying $10.60 · today Options Calculator

Positioning

Aug 21, 2026 · 25 days to expiry · 16 contracts

Put / call OI

0.01

Call-heavy positioning

Open interest

113

contracts outstanding

Volume

traded today

Max pain

$10.00

$0.60 below spot

ATM implied vol

45.7%

market's expected move

Open interest by strike

Calls Puts

2.5

7.5

12.5

17.5

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Aug 21 25d Sep 18 53d Oct 16 81d Jan 15 172d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	476.3%	0.96	—		—	—	—	—	0
Call · $2.5 In the money Last — Breakeven — Implied vol 476.3% Delta 0.96 ≈96% ITM Gamma 0.006 Theta -0.02 Vega 0.002 Open interest 0 Model this call Put · $2.5 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	275.3%	0.916	—		—	—	—	—	0
Call · $5 In the money Last — Breakeven — Implied vol 275.3% Delta 0.916 ≈92% ITM Gamma 0.02 Theta -0.021 Vega 0.005 Open interest 0 Model this call Put · $5 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $7.5 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $7.5 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
21	3	30.7%	0.77	$0.75		$0.42	-0.34	60.7%	1	1
Call · $10 In the money Last $0.75 Breakeven $10.75 Implied vol 30.7% Delta 0.77 ≈77% ITM Gamma 0.4 Theta -0.004 Vega 0.009 Open interest 21 Model this call Put · $10 Last $0.42 Breakeven $9.58 Implied vol 60.7% Delta -0.34 ≈34% ITM Gamma 0.218 Theta -0.013 Vega 0.011 Open interest 1 Model this put
Underlying $10.60
86	3	50.5%	0.113	$0.08		—	-0.631	124.5%	—	0
Call · $12.5 Last $0.08 Breakeven $12.58 Implied vol 50.5% Delta 0.113 ≈11% ITM Gamma 0.135 Theta -0.005 Vega 0.005 Open interest 86 Model this call Put · $12.5 In the money Last — Breakeven — Implied vol 124.5% Delta -0.631 ≈63% ITM Gamma 0.107 Theta -0.027 Vega 0.01 Open interest 0 Model this put
1	1	—	—	$0.20		—	-0.741	152.7%	—	0
Call · $15 Last $0.20 Breakeven $15.20 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this call Put · $15 In the money Last — Breakeven — Implied vol 152.7% Delta -0.741 ≈74% ITM Gamma 0.074 Theta -0.028 Vega 0.009 Open interest 0 Model this put
2	1	—	—	$0.22		—	-0.771	188.4%	—	0
Call · $17.5 Last $0.22 Breakeven $17.72 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2 Model this call Put · $17.5 In the money Last — Breakeven — Implied vol 188.4% Delta -0.771 ≈77% ITM Gamma 0.056 Theta -0.032 Vega 0.009 Open interest 0 Model this put
2	1	—	—	$0.18		—	-0.789	219.7%	—	0
Call · $20 Last $0.18 Breakeven $20.18 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2 Model this call Put · $20 In the money Last — Breakeven — Implied vol 219.7% Delta -0.789 ≈79% ITM Gamma 0.046 Theta -0.035 Vega 0.01 Open interest 0 Model this put

About this data

Greeks, implied volatility, open interest and the last price come from the latest daily snapshot and are 15-minute delayed. 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. Max pain is the listed strike where the most open interest would expire worthless — a positioning reference, not a forecast.

Key facts CIK 1289945 CUSIP 84863T106 13F (30d) 21 filings 21 filers Visit website Investor relations