# The 5 Fastest-Growing Companies of the Week (August 16, 2026)

On 2026/8/16, ARR Club's weekly report excerpted an earlier report that Kalshi's annualized transaction fee revenue exceeded USD 4 billion. This is a revenue run rate, rather than subscription ARR or realized full-year revenue. The weekly report did not list the original report link separately.



Canonical: https://uniquebase.ai/news/c5de5bfb-7086-4d30-a10d-69764b9afb9c
Stable identifier: c5de5bfb-7086-4d30-a10d-69764b9afb9c
Snapshot captured: 2026-10-20T18:19:32.670Z
English updated: 2026-10-20T18:23:00.736Z

## Connected profiles

- [Kalshi](/companies/kalshi)

## Sources

- https://www.theinformation.com/articles/kalshi-tops-4-billion-annualized-revenue-seeks-40-billion-valuation