CALX · Calix, Inc

Track CALX — free Ask ALVIS about CALX

$36.38 -0.72 (-1.94%)

Market Cap

$2.34B

62.96M

Options Chain

15-min delayed Underlying $36.38 · today Options Calculator

Positioning

Aug 21, 2026 · 23 days to expiry · 28 contracts

Put / call OI

0.66

Call-heavy positioning

Open interest

4,811

contracts outstanding

Volume

298

traded today

Max pain

$40.00

$3.62 above spot

ATM implied vol

39.9%

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

Aug 21 23d Sep 18 51d Oct 16 79d Jan 15 170d Feb 19 205d May 21 296d Aug 20 387d Nov 19 478d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	143%	0.968	—		$0.05	—	—	151	151
Call · $20 In the money Last — Breakeven — Implied vol 143% Delta 0.968 ≈97% ITM Gamma 0.005 Theta -0.022 Vega 0.007 Open interest 0 Model this call Put · $20 Last $0.05 Breakeven $19.95 Implied vol — Delta — Gamma — Theta — Vega — Open interest 151 Model this put
0	—	147.3%	0.932	—		—	—	—	—	0
Call · $22.5 In the money Last — Breakeven — Implied vol 147.3% Delta 0.932 ≈93% ITM Gamma 0.01 Theta -0.04 Vega 0.012 Open interest 0 Model this call Put · $22.5 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
6	12	117.3%	0.923	$11.14		$0.18	-0.059	105.4%	5	15
Call · $25 In the money Last $11.14 Breakeven $36.14 Implied vol 117.3% Delta 0.923 ≈92% ITM Gamma 0.013 Theta -0.036 Vega 0.013 Open interest 6 Model this call Put · $25 Last $0.18 Breakeven $24.82 Implied vol 105.4% Delta -0.059 ≈6% ITM Gamma 0.012 Theta -0.024 Vega 0.013 Open interest 15 Model this put
4	7	97.6%	0.9	$9.25		$0.10	-0.103	99.3%	11	77
Call · $27.5 In the money Last $9.25 Breakeven $36.75 Implied vol 97.6% Delta 0.9 ≈90% ITM Gamma 0.02 Theta -0.037 Vega 0.014 Open interest 4 Model this call Put · $27.5 Last $0.10 Breakeven $27.40 Implied vol 99.3% Delta -0.103 ≈10% ITM Gamma 0.02 Theta -0.035 Vega 0.014 Open interest 77 Model this put
2	1	81.1%	0.855	$5.50		$0.40	-0.119	72%	20	68
Call · $30 In the money Last $5.50 Breakeven $35.50 Implied vol 81.1% Delta 0.855 ≈86% ITM Gamma 0.031 Theta -0.039 Vega 0.022 Open interest 2 Model this call Put · $30 Last $0.40 Breakeven $29.60 Implied vol 72% Delta -0.119 ≈12% ITM Gamma 0.031 Theta -0.028 Vega 0.022 Open interest 68 Model this put
1	2	69.1%	0.775	$3.50		$0.43	-0.18	54.2%	1	420
Call · $32.5 In the money Last $3.50 Breakeven $36.00 Implied vol 69.1% Delta 0.775 ≈77% ITM Gamma 0.048 Theta -0.044 Vega 0.03 Open interest 1 Model this call Put · $32.5 Last $0.43 Breakeven $32.07 Implied vol 54.2% Delta -0.18 ≈18% ITM Gamma 0.053 Theta -0.028 Vega 0.023 Open interest 420 Model this put
54	10	55.9%	0.643	$2.80		$0.90	-0.343	47.8%	30	211
Call · $35 In the money Last $2.80 Breakeven $37.80 Implied vol 55.9% Delta 0.643 ≈64% ITM Gamma 0.073 Theta -0.044 Vega 0.035 Open interest 54 Model this call Put · $35 Last $0.90 Breakeven $34.10 Implied vol 47.8% Delta -0.343 ≈34% ITM Gamma 0.085 Theta -0.034 Vega 0.035 Open interest 211 Model this put
Underlying $36.38
191	1	49.6%	0.439	$1.80		$1.80	-0.632	30.1%	9	67
Call · $37.5 Last $1.80 Breakeven $39.30 Implied vol 49.6% Delta 0.439 ≈44% ITM Gamma 0.087 Theta -0.04 Vega 0.037 Open interest 191 Model this call Put · $37.5 In the money Last $1.80 Breakeven $35.70 Implied vol 30.1% Delta -0.632 ≈63% ITM Gamma 0.142 Theta -0.021 Vega 0.033 Open interest 67 Model this put
468	1	48.2%	0.242	$0.35		$4.25	-0.813	39.7%	1	898
Call · $40 Last $0.35 Breakeven $40.35 Implied vol 48.2% Delta 0.242 ≈24% ITM Gamma 0.072 Theta -0.031 Vega 0.026 Open interest 468 Model this call Put · $40 In the money Last $4.25 Breakeven $35.75 Implied vol 39.7% Delta -0.813 ≈81% ITM Gamma 0.077 Theta -0.019 Vega 0.026 Open interest 898 Model this put
250	4	57.5%	0.161	$0.20		—	—	—	—	0
Call · $42.5 Last $0.20 Breakeven $42.70 Implied vol 57.5% Delta 0.161 ≈16% ITM Gamma 0.047 Theta -0.029 Vega 0.027 Open interest 250 Model this call Put · $42.5 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
1.3k	12	65.1%	0.117	$0.15		—	—	—	—	0
Call · $45 Last $0.15 Breakeven $45.15 Implied vol 65.1% Delta 0.117 ≈12% ITM Gamma 0.033 Theta -0.026 Vega 0.018 Open interest 1.3k Model this call Put · $45 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
418	3	64.4%	0.061	$0.13		—	-0.94	66.4%	—	0
Call · $47.5 Last $0.13 Breakeven $47.63 Implied vol 64.4% Delta 0.061 ≈6% ITM Gamma 0.02 Theta -0.016 Vega 0.011 Open interest 418 Model this call Put · $47.5 In the money Last — Breakeven — Implied vol 66.4% Delta -0.94 ≈94% ITM Gamma 0.022 Theta -0.013 Vega 0.01 Open interest 0 Model this put
125	2	65.7%	0.033	$0.07		—	—	—	—	0
Call · $50 Last $0.07 Breakeven $50.07 Implied vol 65.7% Delta 0.033 ≈3% ITM Gamma 0.012 Theta -0.01 Vega 0.006 Open interest 125 Model this call Put · $50 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
43	15	98%	0.062	$0.05		—	—	—	—	0
Call · $55 Last $0.05 Breakeven $55.05 Implied vol 98% Delta 0.062 ≈6% ITM Gamma 0.013 Theta -0.024 Vega 0.012 Open interest 43 Model this call Put · $55 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — 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 1406666 CUSIP 13100M509 13F (30d) 53 filings 53 filers Visit website Investor relations