DXCM · Dexcom Inc

Track DXCM — free Ask ALVIS about DXCM

$71.54 +1.06 (+1.50%)

Market Cap

$27.20B

385.87M

Options Chain

15-min delayed Underlying $71.54 · today Options Calculator

Positioning

Jul 24, 2026 · expires today · 78 contracts

Put / call OI

0.46

Call-heavy positioning

Open interest

1,978

contracts outstanding

Volume

284

traded today

Max pain

$72.00

$0.46 above spot

ATM implied vol

189.8%

market's expected move

Open interest by strike · near the money

Calls Puts

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Jul 24 0d Jul 31 7d Aug 7 14d Aug 14 21d Aug 21 28d Aug 28 35d Sep 4 42d Sep 18 56d Dec 18 147d Jan 15 175d Mar 19 238d Jun 17 328d Jan 21 546d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	—	—	—		$0.20	—	—	1	2
Call · $40 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $40 Last $0.20 Breakeven $39.80 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2 Model this put
0	2	0%	1	$29.16		—	—	—	—	0
Call · $45 In the money Last $29.16 Breakeven $74.16 Implied vol 0% Delta 1 ≈100% ITM Gamma 0 Theta -0.004 Vega 0 Open interest 0 Model this call Put · $45 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
2	6	—	—	$22.05		—	—	—	—	0
Call · $50 In the money Last $22.05 Breakeven $72.05 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2 Model this call Put · $50 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	2	—	—	$22.78		—	0	0%	—	0
Call · $55 In the money Last $22.78 Breakeven $77.78 Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $55 Last — Breakeven — Implied vol 0% Delta 0 ≈0% ITM Gamma 0 Theta 0 Vega 0 Open interest 0 Model this put
2	1	—	—	$19.05		$0.20	—	—	1	0
Call · $56 In the money Last $19.05 Breakeven $75.05 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2 Model this call Put · $56 Last $0.20 Breakeven $55.80 Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
3	2	—	—	$18.10		—	-0.073	1785.3%	—	0
Call · $57 In the money Last $18.10 Breakeven $75.10 Implied vol — Delta — Gamma — Theta — Vega — Open interest 3 Model this call Put · $57 Last — Breakeven — Implied vol 1785.3% Delta -0.073 ≈7% ITM Gamma 0.012 Theta -26.176 Vega 0.001 Open interest 0 Model this put
4	1	1199.5%	0.975	$12.61		—	-0.083	1723.2%	—	0
Call · $58 In the money Last $12.61 Breakeven $70.61 Implied vol 1199.5% Delta 0.975 ≈97% ITM Gamma 0.007 Theta -7.439 Vega 0 Open interest 4 Model this call Put · $58 Last — Breakeven — Implied vol 1723.2% Delta -0.083 ≈8% ITM Gamma 0.013 Theta -27.725 Vega 0.001 Open interest 0 Model this put
5	8	—	—	$11.90		—	-0.085	1591.8%	—	0
Call · $59 In the money Last $11.90 Breakeven $70.90 Implied vol — Delta — Gamma — Theta — Vega — Open interest 5 Model this call Put · $59 Last — Breakeven — Implied vol 1591.8% Delta -0.085 ≈9% ITM Gamma 0.015 Theta -26.11 Vega 0.001 Open interest 0 Model this put
10	9	—	—	$10.95		$0.13	-0.099	1555.6%	4	7
Call · $60 In the money Last $10.95 Breakeven $70.95 Implied vol — Delta — Gamma — Theta — Vega — Open interest 10 Model this call Put · $60 Last $0.13 Breakeven $59.87 Implied vol 1555.6% Delta -0.099 ≈10% ITM Gamma 0.017 Theta -28.711 Vega 0.001 Open interest 7 Model this put
1	2	—	—	$9.78		$1.49	-0.161	1885.1%	1	1
Call · $61 In the money Last $9.78 Breakeven $70.78 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this call Put · $61 Last $1.49 Breakeven $59.51 Implied vol 1885.1% Delta -0.161 ≈16% ITM Gamma 0.019 Theta -48.58 Vega 0.002 Open interest 1 Model this put
10	2	—	—	$10.63		$0.40	-0.1	1256.7%	3	6
Call · $62 In the money Last $10.63 Breakeven $72.63 Implied vol — Delta — Gamma — Theta — Vega — Open interest 10 Model this call Put · $62 Last $0.40 Breakeven $61.60 Implied vol 1256.7% Delta -0.1 ≈10% ITM Gamma 0.021 Theta -23.365 Vega 0.001 Open interest 6 Model this put
0	3	—	—	$9.63		$1.48	-0.169	1531.4%	2	2
Call · $63 In the money Last $9.63 Breakeven $72.63 Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $63 Last $1.48 Breakeven $61.52 Implied vol 1531.4% Delta -0.169 ≈17% ITM Gamma 0.025 Theta -40.791 Vega 0.002 Open interest 2 Model this put
1	1	—	—	$12.80		$0.41	-0.2	1561.2%	1	21
Call · $64 In the money Last $12.80 Breakeven $76.80 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this call Put · $64 Last $0.41 Breakeven $63.59 Implied vol 1561.2% Delta -0.2 ≈20% ITM Gamma 0.027 Theta -46.739 Vega 0.002 Open interest 21 Model this put
6	4	—	—	$9.50		$0.05	-0.1	826.4%	1	13
Call · $65 In the money Last $9.50 Breakeven $74.50 Implied vol — Delta — Gamma — Theta — Vega — Open interest 6 Model this call Put · $65 Last $0.05 Breakeven $64.95 Implied vol 826.4% Delta -0.1 ≈10% ITM Gamma 0.032 Theta -15.332 Vega 0.001 Open interest 13 Model this put
1	1	—	—	$5.75		$2.10	-0.158	896.8%	1	1
Call · $66 In the money Last $5.75 Breakeven $71.75 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this call Put · $66 Last $2.10 Breakeven $63.90 Implied vol 896.8% Delta -0.158 ≈16% ITM Gamma 0.041 Theta -22.861 Vega 0.002 Open interest 1 Model this put
1	1	—	—	$4.80		$0.39	-0.173	769.8%	10	32
Call · $67 In the money Last $4.80 Breakeven $71.80 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this call Put · $67 Last $0.39 Breakeven $66.61 Implied vol 769.8% Delta -0.173 ≈17% ITM Gamma 0.05 Theta -20.772 Vega 0.002 Open interest 32 Model this put
69	1	—	—	$2.75		$0.13	-0.104	437.6%	22	25
Call · $68 In the money Last $2.75 Breakeven $70.75 Implied vol — Delta — Gamma — Theta — Vega — Open interest 69 Model this call Put · $68 Last $0.13 Breakeven $67.87 Implied vol 437.6% Delta -0.104 ≈10% ITM Gamma 0.062 Theta -8.344 Vega 0.001 Open interest 25 Model this put
15	1	330.3%	0.883	$6.24		$0.49	-0.176	420.8%	2	44
Call · $69 In the money Last $6.24 Breakeven $75.24 Implied vol 330.3% Delta 0.883 ≈88% ITM Gamma 0.091 Theta -6.927 Vega 0.001 Open interest 15 Model this call Put · $69 Last $0.49 Breakeven $68.51 Implied vol 420.8% Delta -0.176 ≈18% ITM Gamma 0.092 Theta -11.474 Vega 0.002 Open interest 44 Model this put
10	3	—	—	$3.25		$0.75	-0.233	325.5%	25	28
Call · $70 In the money Last $3.25 Breakeven $73.25 Implied vol — Delta — Gamma — Theta — Vega — Open interest 10 Model this call Put · $70 Last $0.75 Breakeven $69.25 Implied vol 325.5% Delta -0.233 ≈23% ITM Gamma 0.143 Theta -10.637 Vega 0.002 Open interest 28 Model this put
22	5	399.8%	0.585	$0.78		$1.19	-0.417	407.4%	22	87
Call · $71 In the money Last $0.78 Breakeven $71.78 Implied vol 399.8% Delta 0.585 ≈58% ITM Gamma 0.147 Theta -16.494 Vega 0.003 Open interest 22 Model this call Put · $71 Last $1.19 Breakeven $69.81 Implied vol 407.4% Delta -0.417 ≈42% ITM Gamma 0.145 Theta -16.816 Vega 0.003 Open interest 87 Model this put
Underlying $71.54
22	5	189.8%	0.355	$0.45		$0.65	—	—	2	173
Call · $72 Last $0.45 Breakeven $72.45 Implied vol 189.8% Delta 0.355 ≈35% ITM Gamma 0.3 Theta -7.587 Vega 0.002 Open interest 22 Model this call Put · $72 In the money Last $0.65 Breakeven $71.35 Implied vol — Delta — Gamma — Theta — Vega — Open interest 173 Model this put
22	20	345.8%	0.268	$0.06		$1.50	—	—	4	20
Call · $73 Last $0.06 Breakeven $73.06 Implied vol 345.8% Delta 0.268 ≈27% ITM Gamma 0.144 Theta -12.066 Vega 0.002 Open interest 22 Model this call Put · $73 In the money Last $1.50 Breakeven $71.50 Implied vol — Delta — Gamma — Theta — Vega — Open interest 20 Model this put
86	2	471.8%	0.224	$0.18		$2.90	-0.823	385.7%	4	32
Call · $74 Last $0.18 Breakeven $74.18 Implied vol 471.8% Delta 0.224 ≈22% ITM Gamma 0.097 Theta -15.077 Vega 0.002 Open interest 86 Model this call Put · $74 In the money Last $2.90 Breakeven $71.10 Implied vol 385.7% Delta -0.823 ≈82% ITM Gamma 0.101 Theta -10.543 Vega 0.002 Open interest 32 Model this put
65	2	513.2%	0.166	$0.25		$3.30	—	—	2	19
Call · $75 Last $0.25 Breakeven $75.25 Implied vol 513.2% Delta 0.166 ≈17% ITM Gamma 0.073 Theta -13.513 Vega 0.002 Open interest 65 Model this call Put · $75 In the money Last $3.30 Breakeven $71.70 Implied vol — Delta — Gamma — Theta — Vega — Open interest 19 Model this put
166	1	513.6%	0.107	$0.52		$4.30	-0.849	620.1%	1	80
Call · $76 Last $0.52 Breakeven $76.52 Implied vol 513.6% Delta 0.107 ≈11% ITM Gamma 0.054 Theta -9.948 Vega 0.001 Open interest 166 Model this call Put · $76 In the money Last $4.30 Breakeven $71.70 Implied vol 620.1% Delta -0.849 ≈85% ITM Gamma 0.057 Theta -15.456 Vega 0.002 Open interest 80 Model this put
87	1	744.5%	0.149	$0.20		$5.60	—	—	10	17
Call · $77 Last $0.20 Breakeven $77.20 Implied vol 744.5% Delta 0.149 ≈15% ITM Gamma 0.047 Theta -18.425 Vega 0.002 Open interest 87 Model this call Put · $77 In the money Last $5.60 Breakeven $71.40 Implied vol — Delta — Gamma — Theta — Vega — Open interest 17 Model this put
56	6	832.4%	0.137	$0.04		$6.20	-0.798	1051.8%	11	10
Call · $78 Last $0.04 Breakeven $78.04 Implied vol 832.4% Delta 0.137 ≈14% ITM Gamma 0.04 Theta -19.535 Vega 0.001 Open interest 56 Model this call Put · $78 In the money Last $6.20 Breakeven $71.80 Implied vol 1051.8% Delta -0.798 ≈80% ITM Gamma 0.04 Theta -31.326 Vega 0.002 Open interest 10 Model this put
34	18	746.4%	0.079	$0.03		$8.00	-0.884	863.7%	1	1
Call · $79 Last $0.03 Breakeven $79.03 Implied vol 746.4% Delta 0.079 ≈8% ITM Gamma 0.03 Theta -11.656 Vega 0.001 Open interest 34 Model this call Put · $79 In the money Last $8.00 Breakeven $71.00 Implied vol 863.7% Delta -0.884 ≈88% ITM Gamma 0.034 Theta -17.78 Vega 0.001 Open interest 1 Model this put
389	5	1002.7%	0.124	$0.10		—	—	—	—	0
Call · $80 Last $0.10 Breakeven $80.10 Implied vol 1002.7% Delta 0.124 ≈12% ITM Gamma 0.031 Theta -21.726 Vega 0.001 Open interest 389 Model this call Put · $80 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
127	1	1076.3%	0.117	$0.20		$6.43	-0.898	1012.6%	1	0
Call · $81 Last $0.20 Breakeven $81.20 Implied vol 1076.3% Delta 0.117 ≈12% ITM Gamma 0.027 Theta -22.293 Vega 0.001 Open interest 127 Model this call Put · $81 In the money Last $6.43 Breakeven $74.57 Implied vol 1012.6% Delta -0.898 ≈90% ITM Gamma 0.026 Theta -18.916 Vega 0.001 Open interest 0 Model this put
21	11	981.5%	0.071	$0.22		—	-0.87	1244.5%	—	0
Call · $82 Last $0.22 Breakeven $82.22 Implied vol 981.5% Delta 0.071 ≈7% ITM Gamma 0.021 Theta -14.148 Vega 0.001 Open interest 21 Model this call Put · $82 In the money Last — Breakeven — Implied vol 1244.5% Delta -0.87 ≈87% ITM Gamma 0.026 Theta -27.926 Vega 0.001 Open interest 0 Model this put
35	10	940.5%	0.048	$0.13		—	—	—	—	0
Call · $83 Last $0.13 Breakeven $83.13 Implied vol 940.5% Delta 0.048 ≈5% ITM Gamma 0.016 Theta -9.893 Vega 0.001 Open interest 35 Model this call Put · $83 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
13	1	1764.8%	0.185	$0.20		$12.98	-0.922	1190.2%	1	0
Call · $84 Last $0.20 Breakeven $84.20 Implied vol 1764.8% Delta 0.185 ≈19% ITM Gamma 0.023 Theta -49.792 Vega 0.002 Open interest 13 Model this call Put · $84 In the money Last $12.98 Breakeven $71.02 Implied vol 1190.2% Delta -0.922 ≈92% ITM Gamma 0.019 Theta -18.505 Vega 0.001 Open interest 0 Model this put
50	10	1196.3%	0.066	$0.08		$13.89	—	—	1	0
Call · $85 Last $0.08 Breakeven $85.08 Implied vol 1196.3% Delta 0.066 ≈7% ITM Gamma 0.016 Theta -16.272 Vega 0.001 Open interest 50 Model this call Put · $85 In the money Last $13.89 Breakeven $71.11 Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	1943.3%	0.176	—		—	—	—	—	0
Call · $86 Last — Breakeven — Implied vol 1943.3% Delta 0.176 ≈18% ITM Gamma 0.02 Theta -53.207 Vega 0.002 Open interest 0 Model this call Put · $86 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
21	1	1519.4%	0.093	$0.20		—	-0.894	1592.8%	—	0
Call · $87 Last $0.20 Breakeven $87.20 Implied vol 1519.4% Delta 0.093 ≈9% ITM Gamma 0.017 Theta -26.74 Vega 0.001 Open interest 21 Model this call Put · $87 In the money Last — Breakeven — Implied vol 1592.8% Delta -0.894 ≈89% ITM Gamma 0.017 Theta -30.748 Vega 0.001 Open interest 0 Model this put
0	—	1587.1%	0.09	—		—	-0.891	1698.5%	—	0
Call · $88 Last — Breakeven — Implied vol 1587.1% Delta 0.09 ≈9% ITM Gamma 0.015 Theta -27.303 Vega 0.001 Open interest 0 Model this call Put · $88 In the money Last — Breakeven — Implied vol 1698.5% Delta -0.891 ≈89% ITM Gamma 0.017 Theta -33.419 Vega 0.001 Open interest 0 Model this put
1	1	0%	0	$0.20		—	-0.991	1029.4%	—	0
Call · $90 Last $0.20 Breakeven $90.20 Implied vol 0% Delta 0 ≈0% ITM Gamma 0 Theta 0 Vega 0 Open interest 1 Model this call Put · $90 In the money Last — Breakeven — Implied vol 1029.4% Delta -0.991 ≈99% ITM Gamma 0.003 Theta -2.527 Vega 0 Open interest 0 Model this put
0	—	0%	0	—		—	-1	0%	—	0
Call · $95 Last — Breakeven — Implied vol 0% Delta 0 ≈0% ITM Gamma 0 Theta 0 Vega 0 Open interest 0 Model this call Put · $95 In the money Last — Breakeven — Implied vol 0% Delta -1 ≈100% ITM Gamma 0 Theta 0 Vega 0 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. The 25 strikes around the money are shown by default — switch to "All 39" for the wings. Max pain is the listed strike where the most open interest would expire worthless — a positioning reference, not a forecast.

Key facts CIK 1093557 CUSIP 252131107 13F (30d) 210 filings 204 filers Visit website Investor relations