Skip to main content
FSLY logo

FSLY · Fastly, Inc.

Track FSLY — free
$29.93 -0.09 (-0.30%) At close · Aug 14
Market Cap
$4.77B
Shares
159.30M

Options Chain

Underlying $29.93 · at close Aug 14, 2026 Options Calculator

Positioning

Aug 21, 2026 · 5 days to expiry · 96 contracts · mixed snapshot sessions · Jun 23, 2026–Aug 14, 2026; 16 unknown
Put / call OI
dated and unknown snapshot sessions
Open interest
dated and unknown snapshot sessions
Volume
dated and unknown snapshot sessions

Chain

Click any strike for greeks, breakeven and the calculator
OI Vol IV Δ Last Strike Last Δ IV Vol OI
0 0
0 $0.03 44 153
0 603.3% 0.987 $0.09 -0.014 605.7% 1 1
17 2 595.1% 0.968 $19.90 $0.31 -0.015 473% 1 45
2 2 366.5% 0.992 $18.86 $0.36 1 9
40 38 406% 0.98 $16.75 $0.13 -0.021 409% 1 15
14 21 409.6% 0.974 $16.95 $0.14 -0.022 392.1% 1 139
28 7 307.6% 0.991 $16.72 $0.18 -0.025 386% 2 1
0 $0.05 -0.025 345.6% 1 3
189 4 351.2% 0.963 $14.69 $0.02 -0.02 299% 2 973
0 $0.13 -0.036 309% 6 162
0 224.1% 0.988 $0.20 -0.04 305% 5 9
2 1 310.5% 0.951 $12.53 $0.25 -0.036 275.2% 1 8
236 3 $11.20 $0.02 -0.025 237.8% 3 402
5 5 256.6% 0.959 $5.24 $0.04 -0.027 226.6% 12 61
1 1 228.7% 0.965 $3.18 $0.23 -0.045 248.8% 4 65
4 3 257.5% 0.941 $9.75 $0.03 -0.039 221.5% 1 63
2 3 $6.55 $0.40 -0.053 233.3% 296 277
620 1 157.1% 0.984 $8.52 $0.03 -0.032 185% 150 445
6 1 0.1% 1 $9.56 $0.05 -0.04 183.1% 1 74
44 1 236.9% 0.91 $9.20 $0.05 -0.042 173.5% 3 8
20 1 225.4% 0.905 $7.04 $0.08 -0.038 156.5% 3 144
1.8k 4 0.1% 1 $8.05 $0.20 -0.046 155% 27 121
1.2k 3 $7.00 $0.10 -0.066 162.4% 1 82
109 3 126% 0.959 $7.15 $0.07 -0.052 137.3% 3 34
138 8 202.1% 0.86 $6.47 $0.05 -0.039 114.3% 2 58
78 3 167.8% 0.877 $5.94 $0.18 -0.079 132.6% 4 46
95 1 86.8% 0.973 $5.10 $0.05 -0.055 105.2% 7 9
2.2k 67 93.1% 0.947 $5.00 $0.10 -0.059 97.3% 108 359
41 3 71.3% 0.969 $4.50 $0.26 -0.118 116.6% 1 47
235 11 93.3% 0.898 $3.88 $0.10 -0.107 95.7% 140 18
93 2 76.6% 0.907 $3.45 $0.16 -0.099 79.1% 12 46
422 79 75.7% 0.877 $3.18 $0.20 -0.119 74.5% 27 159
480 3 76.1% 0.829 $2.78 $0.35 -0.176 77.7% 10 72
340 87 81.8% 0.765 $2.43 $0.39 -0.223 77.1% 26 182
36 7 81.4% 0.709 $2.09 $0.55 -0.269 71% 366 6
314 94 83.4% 0.648 $1.65 $0.70 -0.354 84.5% 692 4
1.8k 366 75.3% 0.521 $1.20 $1.32 -0.48 73.1% 14 3
103 92 74.4% 0.384 $0.82 $1.95 -0.602 82% 20 6
128 90 73.4% 0.261 $0.53 $2.88 -0.713 81.9% 4 0
37 62 76.5% 0.178 $0.35 $5.04 -0.818 78% 2 2
18 34 86.6% 0.139 $0.15 -0.794 109.9% 0
782 175 95.7% 0.116 $0.05 -0.813 124.8% 0
96 122 86.3% 0.055 $0.24 -1 0.1% 0
1 1 96.4% 0.05 $0.10 -0.958 93.6% 0
0 -1 0.1% 0
0 0
3 2 125.3% 0.04 $0.04 -0.966 121.9% 0
About this data

Each contract's last price, volume, greeks, implied volatility and open interest belongs to the snapshot session shown in its details; unknown means the provider omitted the timestamp. This chain has mixed snapshot sessions · Jun 23, 2026–Aug 14, 2026; 16 unknown. Cross-contract positioning totals are shown only when every returned row has the same known session. 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 23 strikes around the money are shown by default — switch to "All 48" for the wings.

Key facts CIK 1517413 CUSIP 31188V100 13F (30d) 287 filings 269 filers Visit website Investor relations