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GNRC · Generac Holdings Inc.

$217.41 -1.22 (-0.56%) At close · Aug 5
Market Cap
$12.83B
Shares
59.01M

Options Chain

15-min delayed Underlying $217.41 · at close Aug 5, 2026 Options Calculator

Positioning

Aug 7, 2026 · 1 days to expiry · 132 contracts
Put / call OI
0.50
Call-heavy positioning
Open interest
2,289
contracts outstanding
Volume
1,136
traded today
Max pain
$210.00
$7.41 below spot
ATM implied vol
76.3%
market's expected move

Open interest by strike · near the money

Calls Puts

Chain

Click any strike for greeks, breakeven and the calculator
OI Vol IV Δ Last Strike Last Δ IV Vol OI
0 0
3 6 $73.90 0
3 6 $68.90 0
0 0
0 $0.20 -0.05 453.9% 1 1
1 1 $58.90 -0.039 390.2% 0
0 -0.041 389% 0
0 $2.57 -0.056 428.8% 1 1
0 $1.09 -0.047 365.8% 1 2
0 $0.70 -0.059 359.4% 2 3
3 7 $33.80 $0.35 -0.028 259.4% 1 2
2 1 $55.30 $0.03 -0.043 258% 15 29
0 $0.01 -0.039 236.8% 4 25
10 10 $35.45 $0.11 -0.027 206.1% 1 14
3 6 $18.90 $0.07 -0.036 204.9% 7 23
14 10 $30.55 $0.50 -0.038 194.1% 7 46
0 $0.20 -0.028 170.1% 1 38
15 1 $15.80 $0.15 -0.055 190% 2 24
9 5 $12.22 $1.01 -0.035 153.2% 10 13
49 1 $20.50 $0.16 -0.054 159.8% 37 67
10 3 $9.00 $0.50 -0.048 140.4% 14 19
13 4 $12.00 $0.58 -0.075 148.6% 8 20
13 1 $15.45 $0.28 -0.036 106% 5 95
18 1 $18.90 $0.25 -0.055 107.4% 2 44
11 6 $17.30 $0.50 -0.066 100.9% 2 9
34 11 $15.11 $1.25 -0.127 117.3% 3 7
9 7 $6.67 $0.65 -0.148 107.6% 40 44
44 6 $15.00 $0.91 -0.187 104.9% 17 23
30 4 $6.22 $2.35 -0.244 108.3% 6 10
26 5 $10.91 $1.68 -0.307 112.8% 9 137
9 14 38.7% 0.819 $6.15 $4.60 -0.366 113.9% 11 22
602 692 47.4% 0.647 $5.30 $3.10 -0.427 113.8% 2 10
21 15 59.8% 0.503 $4.50 $6.77 -0.488 119.6% 4 4
73 19 69.2% 0.404 $3.10 $10.06 -0.537 134.3% 7 8
1 1 68.1% 0.309 $2.50 -0.588 134% 0
85 4 67.8% 0.224 $3.55 $15.50 -0.624 146.7% 2 2
25 3 72.1% 0.173 $0.55 $33.70 -0.655 154.8% 2 2
24 6 78.9% 0.139 $0.70 $26.78 -0.681 164.5% 4 0
3 2 74.7% 0.087 $1.26 $29.43 -0.701 176% 1 1
23 1 85.9% 0.085 $0.80 $39.80 -0.716 189.4% 3 2
101 1 133.3% 0.135 $0.10 $47.10 -0.744 211.9% 1 2
44 2 109.4% 0.05 $0.10 $57.71 -0.765 231.2% 5 10
7 1 170.8% 0.115 $1.11 $44.00 -0.777 253.8% 1 0
80 1 160.9% 0.069 $0.50 $48.25 -0.791 272.4% 1 1
0 165.5% 0.054 $49.93 -0.789 304% 4 0
51 3 173% 0.043 $2.00 -0.803 318.1% 0
3 1 186.7% 0.041 $7.00 -0.81 337.9% 0
13 1 209.2% 0.048 $0.13 -0.814 358.6% 0
1 1 216.2% 0.04 $0.10 -0.82 376.5% 0
1 1 224.9% 0.035 $2.20 -0.853 359.7% 0
1 1 235.7% 0.033 $1.99 -0.831 411.6% 0
24 2 246.2% 0.032 $2.10 -0.84 420.7% 0
2 1 350.4% 0.095 $1.38 -0.837 446.2% 0
0 2 363.4% 0.091 $2.85 -0.841 459.4% 0
0 336.8% 0.065 -0.874 425% 0
12 12 286.9% 0.028 $4.80 -0.852 476.8% 0
0 296.7% 0.027 -0.851 497.8% 0
0 312% 0.029 -0.857 503.6% 0
0 443.7% 0.092 -0.861 514.2% 0
0 325.2% 0.025 -0.86 531.3% 0
2 1 334.4% 0.025 $3.31 -0.872 527% 0
1 1 343.5% 0.024 $0.11 -0.863 558.2% 0
0 377.6% 0.029 -0.877 563.7% 0
0 378.6% 0.022 -0.873 598.9% 0
0 465.5% 0.046 -0.874 625.5% 0
0 1 417.2% 0.023 $0.95 -0.88 640.6% 0
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 66" 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 1474735 CUSIP 368736104 13F (30d) 466 filings 436 filers Visit website Investor relations