BDC · Belden Inc.

Track BDC — free Ask ALVIS about BDC

$126.10 +2.05 (+1.65%)

Market Cap

$4.85B

39.08M

Options Chain

15-min delayed Underlying $126.10 · today Options Calculator

Positioning

Aug 21, 2026 · 18 days to expiry · 50 contracts

Put / call OI

0.29

Call-heavy positioning

Open interest

816

contracts outstanding

Volume

203

traded today

Max pain

$100.00

$26.10 below spot

ATM implied vol

55.6%

market's expected move

Open interest by strike

Calls Puts

100

105

110

115

120

125

130

135

140

145

150

155

160

165

170

175

180

185

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Aug 21 18d Sep 18 46d Dec 18 137d Mar 19 228d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	—	—	—		—	-0.021	163.5%	—	0
Call · $65 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $65 Last — Breakeven — Implied vol 163.5% Delta -0.021 ≈2% ITM Gamma 0.001 Theta -0.065 Vega 0.02 Open interest 0 Model this put
0	—	—	—	—		—	-0.026	149.1%	—	0
Call · $70 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $70 Last — Breakeven — Implied vol 149.1% Delta -0.026 ≈3% ITM Gamma 0.001 Theta -0.069 Vega 0.021 Open interest 0 Model this put
0	—	—	—	—		—	-0.026	131.2%	—	0
Call · $75 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $75 Last — Breakeven — Implied vol 131.2% Delta -0.026 ≈3% ITM Gamma 0.002 Theta -0.062 Vega 0.022 Open interest 0 Model this put
0	—	—	—	—		—	-0.036	123.3%	—	0
Call · $80 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $80 Last — Breakeven — Implied vol 123.3% Delta -0.036 ≈4% ITM Gamma 0.002 Theta -0.075 Vega 0.023 Open interest 0 Model this put
0	—	—	—	—		$0.18	-0.058	124.5%	1	18
Call · $85 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $85 Last $0.18 Breakeven $84.82 Implied vol 124.5% Delta -0.058 ≈6% ITM Gamma 0.003 Theta -0.112 Vega 0.04 Open interest 18 Model this put
2	1	0.1%	1	$26.00		$0.15	-0.041	92.3%	1	17
Call · $90 In the money Last $26.00 Breakeven $116.00 Implied vol 0.1% Delta 1 ≈100% ITM Gamma 0 Theta -0.008 Vega 0 Open interest 2 Model this call Put · $90 Last $0.15 Breakeven $89.85 Implied vol 92.3% Delta -0.041 ≈4% ITM Gamma 0.003 Theta -0.062 Vega 0.024 Open interest 17 Model this put
1	3	—	—	$10.64		$0.55	-0.043	78.2%	22	17
Call · $95 In the money Last $10.64 Breakeven $105.64 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this call Put · $95 Last $0.55 Breakeven $94.45 Implied vol 78.2% Delta -0.043 ≈4% ITM Gamma 0.004 Theta -0.055 Vega 0.025 Open interest 17 Model this put
146	5	—	—	$20.85		$0.40	-0.05	66.7%	4	38
Call · $100 In the money Last $20.85 Breakeven $120.85 Implied vol — Delta — Gamma — Theta — Vega — Open interest 146 Model this call Put · $100 Last $0.40 Breakeven $99.60 Implied vol 66.7% Delta -0.05 ≈5% ITM Gamma 0.006 Theta -0.053 Vega 0.025 Open interest 38 Model this put
27	1	—	—	$17.20		$3.10	-0.101	68.6%	8	23
Call · $105 In the money Last $17.20 Breakeven $122.20 Implied vol — Delta — Gamma — Theta — Vega — Open interest 27 Model this call Put · $105 Last $3.10 Breakeven $101.90 Implied vol 68.6% Delta -0.101 ≈10% ITM Gamma 0.009 Theta -0.093 Vega 0.045 Open interest 23 Model this put
77	7	39.4%	0.947	$15.00		$1.40	-0.133	58.9%	17	4
Call · $110 In the money Last $15.00 Breakeven $125.00 Implied vol 39.4% Delta 0.947 ≈95% ITM Gamma 0.01 Theta -0.043 Vega 0.026 Open interest 77 Model this call Put · $110 Last $1.40 Breakeven $108.60 Implied vol 58.9% Delta -0.133 ≈13% ITM Gamma 0.013 Theta -0.097 Vega 0.069 Open interest 4 Model this put
17	11	45.2%	0.833	$12.37		$2.80	-0.235	63.8%	62	56
Call · $115 In the money Last $12.37 Breakeven $127.37 Implied vol 45.2% Delta 0.833 ≈83% ITM Gamma 0.02 Theta -0.096 Vega 0.07 Open interest 17 Model this call Put · $115 Last $2.80 Breakeven $112.20 Implied vol 63.8% Delta -0.235 ≈24% ITM Gamma 0.017 Theta -0.15 Vega 0.092 Open interest 56 Model this put
57	16	44.7%	0.71	$8.00		$8.32	-0.328	59.6%	10	10
Call · $120 In the money Last $8.00 Breakeven $128.00 Implied vol 44.7% Delta 0.71 ≈71% ITM Gamma 0.027 Theta -0.127 Vega 0.095 Open interest 57 Model this call Put · $120 Last $8.32 Breakeven $111.68 Implied vol 59.6% Delta -0.328 ≈33% ITM Gamma 0.022 Theta -0.166 Vega 0.108 Open interest 10 Model this put
24	7	47.7%	0.557	$5.80		—	-0.446	63.5%	—	0
Call · $125 In the money Last $5.80 Breakeven $130.80 Implied vol 47.7% Delta 0.557 ≈56% ITM Gamma 0.03 Theta -0.153 Vega 0.111 Open interest 24 Model this call Put · $125 Last — Breakeven — Implied vol 63.5% Delta -0.446 ≈45% ITM Gamma 0.022 Theta -0.191 Vega 0.111 Open interest 0 Model this put
Underlying $126.10
244	16	48.2%	0.413	$3.80		—	-0.568	57.1%	—	0
Call · $130 Last $3.80 Breakeven $133.80 Implied vol 48.2% Delta 0.413 ≈41% ITM Gamma 0.029 Theta -0.151 Vega 0.114 Open interest 244 Model this call Put · $130 In the money Last — Breakeven — Implied vol 57.1% Delta -0.568 ≈57% ITM Gamma 0.025 Theta -0.168 Vega 0.114 Open interest 0 Model this put
18	1	49.8%	0.292	$1.57		—	-0.673	58.9%	—	0
Call · $135 Last $1.57 Breakeven $136.57 Implied vol 49.8% Delta 0.292 ≈29% ITM Gamma 0.025 Theta -0.136 Vega 0.102 Open interest 18 Model this call Put · $135 In the money Last — Breakeven — Implied vol 58.9% Delta -0.673 ≈67% ITM Gamma 0.022 Theta -0.157 Vega 0.102 Open interest 0 Model this put
1	1	55.9%	0.222	$3.60		—	-0.767	59.3%	—	0
Call · $140 Last $3.60 Breakeven $143.60 Implied vol 55.9% Delta 0.222 ≈22% ITM Gamma 0.019 Theta -0.132 Vega 0.08 Open interest 1 Model this call Put · $140 In the money Last — Breakeven — Implied vol 59.3% Delta -0.767 ≈77% ITM Gamma 0.019 Theta -0.133 Vega 0.079 Open interest 0 Model this put
3	1	57%	0.149	$0.68		—	-0.831	61.5%	—	0
Call · $145 Last $0.68 Breakeven $145.68 Implied vol 57% Delta 0.149 ≈15% ITM Gamma 0.015 Theta -0.105 Vega 0.054 Open interest 3 Model this call Put · $145 In the money Last — Breakeven — Implied vol 61.5% Delta -0.831 ≈83% ITM Gamma 0.015 Theta -0.112 Vega 0.08 Open interest 0 Model this put
3	2	56.2%	0.094	$0.90		—	-0.878	63.5%	—	0
Call · $150 Last $0.90 Breakeven $150.90 Implied vol 56.2% Delta 0.094 ≈9% ITM Gamma 0.011 Theta -0.074 Vega 0.055 Open interest 3 Model this call Put · $150 In the money Last — Breakeven — Implied vol 63.5% Delta -0.878 ≈88% ITM Gamma 0.012 Theta -0.091 Vega 0.054 Open interest 0 Model this put
2	1	60.5%	0.072	$1.85		—	-0.896	69.8%	—	0
Call · $155 Last $1.85 Breakeven $156.85 Implied vol 60.5% Delta 0.072 ≈7% ITM Gamma 0.008 Theta -0.065 Vega 0.033 Open interest 2 Model this call Put · $155 In the money Last — Breakeven — Implied vol 69.8% Delta -0.896 ≈90% ITM Gamma 0.01 Theta -0.088 Vega 0.054 Open interest 0 Model this put
3	2	64.2%	0.057	$0.70		—	-0.915	74.9%	—	0
Call · $160 Last $0.70 Breakeven $160.70 Implied vol 64.2% Delta 0.057 ≈6% ITM Gamma 0.006 Theta -0.057 Vega 0.033 Open interest 3 Model this call Put · $160 In the money Last — Breakeven — Implied vol 74.9% Delta -0.915 ≈92% ITM Gamma 0.008 Theta -0.081 Vega 0.053 Open interest 0 Model this put
5	1	70.6%	0.052	$0.87		—	-0.95	71.6%	—	0
Call · $165 Last $0.87 Breakeven $165.87 Implied vol 70.6% Delta 0.052 ≈5% ITM Gamma 0.005 Theta -0.059 Vega 0.034 Open interest 5 Model this call Put · $165 In the money Last — Breakeven — Implied vol 71.6% Delta -0.95 ≈95% ITM Gamma 0.006 Theta -0.048 Vega 0.03 Open interest 0 Model this put
2	1	81.3%	0.061	$1.45		—	-0.954	77.9%	—	0
Call · $170 Last $1.45 Breakeven $171.45 Implied vol 81.3% Delta 0.061 ≈6% ITM Gamma 0.005 Theta -0.076 Vega 0.034 Open interest 2 Model this call Put · $170 In the money Last — Breakeven — Implied vol 77.9% Delta -0.954 ≈95% ITM Gamma 0.005 Theta -0.05 Vega 0.031 Open interest 0 Model this put
1	1	84.4%	0.05	$1.20		—	-0.961	82.4%	—	0
Call · $175 Last $1.20 Breakeven $176.20 Implied vol 84.4% Delta 0.05 ≈5% ITM Gamma 0.004 Theta -0.067 Vega 0.034 Open interest 1 Model this call Put · $175 In the money Last — Breakeven — Implied vol 82.4% Delta -0.961 ≈96% ITM Gamma 0.004 Theta -0.046 Vega 0.03 Open interest 0 Model this put
0	—	90.3%	0.047	—		—	-0.963	88.4%	—	0
Call · $180 Last — Breakeven — Implied vol 90.3% Delta 0.047 ≈5% ITM Gamma 0.004 Theta -0.069 Vega 0.035 Open interest 0 Model this call Put · $180 In the money Last — Breakeven — Implied vol 88.4% Delta -0.963 ≈96% ITM Gamma 0.004 Theta -0.048 Vega 0.03 Open interest 0 Model this put
0	—	94.6%	0.042	—		—	-0.965	94.1%	—	0
Call · $185 Last — Breakeven — Implied vol 94.6% Delta 0.042 ≈4% ITM Gamma 0.003 Theta -0.066 Vega 0.035 Open interest 0 Model this call Put · $185 In the money Last — Breakeven — Implied vol 94.1% Delta -0.965 ≈96% ITM Gamma 0.003 Theta -0.049 Vega 0.029 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 913142 CUSIP 077454106 13F (30d) 94 filings 91 filers Visit website Investor relations