Closing prices for September 17, 2026
The series is stated in the current share scale after splits; dividends are not included in the price
| Date | Open | High | Low | Close | Volume, shares |
|---|---|---|---|---|---|
| September 17, 2026 | 320.59 | 336.90 | 318.16 | 333.94 | 3m |
| September 16, 2026 | 324.02 | 334.58 | 321.14 | 324.65 | 2m |
| September 15, 2026 | 322.12 | 334.60 | 320.50 | 327.23 | 3m |
| September 14, 2026 | 313.02 | 334.60 |
Based on reports through December 31, 2025
Share count is a period average, so market cap is approximate.
Cloudflare runs a network of nodes between the user and the website: it accelerates, filters and protects traffic.
It began as protection from distributed attacks and delivery of content from the nearest node. Over time the same network grew corporate access without a traditional VPN, application security, and compute at the network edge next to the user. One infrastructure serves every product, so each additional one is cheap to run.
Sales work in two stages: a free tier builds an enormous base and yields data on global traffic, while paid enterprise contracts produce the revenue. The metric watched is the number of large customers rather than the total count.
The growth direction is edge compute and storage, where the company competes not with security vendors but with cloud operators. The weak points are network capital intensity and long enterprise sales cycles. The company pays no dividend.
Address:101 TOWNSEND ST., SAN FRANCISCO, CA, 94107, US
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| 309.00 |
| 330.36 |
| 4m |
| September 11, 2026 | 312.81 | 315.98 | 302.88 | 306.53 | 2m |
| September 10, 2026 | 313.35 | 319.43 | 307.41 | 311.17 | 4m |
| September 09, 2026 | 295.50 | 317.55 | 292.54 | 314.18 | 5m |
| September 08, 2026 | 278.12 | 289.00 | 271.72 | 284.30 | 2m |
| September 04, 2026 | 282.25 | 284.72 | 277.59 | 278.92 | 2m |
| September 03, 2026 | 279.93 | 286.85 | 275.66 | 284.51 | 3m |
| September 02, 2026 | 284.08 | 284.95 | 269.30 | 272.74 | 3m |
| September 01, 2026 | 301.62 | 306.47 | 284.60 | 285.51 | 2m |
| August 31, 2026 | 299.19 | 309.30 | 296.44 | 305.11 | 4m |
| August 28, 2026 | 306.21 | 307.50 | 298.02 | 299.84 | 3m |
| August 27, 2026 | 290.29 | 309.53 | 290.28 | 308.23 | 4m |
| August 26, 2026 | 273.82 | 290.89 | 272.29 | 284.89 | 3m |
| August 25, 2026 | 285.62 | 287.00 | 273.21 | 277.58 | 2m |
| August 24, 2026 | 288.70 | 289.98 | 280.19 | 280.35 | 3m |
| August 21, 2026 | 280.86 | 293.57 | 274.03 | 293.14 | 3m |
| August 20, 2026 | 290.62 | 292.49 | 277.83 | 278.91 | 3m |