Among the underlying components of the Russell 3000 index, we saw noteworthy options trading volume today in CloudFlare Inc (Symbol: NET), where a total of 11,738 contracts have traded so far, representing approximately 1.2 million underlying shares. That amounts to about 42.3% of NET's average daily trading volume over the past month of 2.8 million shares. Especially high volume was seen for the $190 strike put option expiring September 19, 2025, with 1,217 contracts trading so far today, representing approximately 121,700 underlying shares of NET. Below is a chart showing NET's trailing twelve month trading history, with the $190 strike highlighted in orange:
Nu Holdings Ltd (Symbol: NU) saw options trading volume of 226,653 contracts, representing approximately 22.7 million underlying shares or approximately 41.9% of NU's average daily trading volume over the past month, of 54.1 million shares. Especially high volume was seen for the $10 strike put option expiring January 16, 2026, with 36,142 contracts trading so far today, representing approximately 3.6 million underlying shares of NU. Below is a chart showing NU's trailing twelve month trading history, with the $10 strike highlighted in orange:
And Rambus Inc. (Symbol: RMBS) options are showing a volume of 4,802 contracts thus far today. That number of contracts represents approximately 480,200 underlying shares, working out to a sizeable 41.8% of RMBS's average daily trading volume over the past month, of 1.1 million shares. Especially high volume was seen for the $80 strike call option expiring October 17, 2025, with 2,131 contracts trading so far today, representing approximately 213,100 underlying shares of RMBS. Below is a chart showing RMBS's trailing twelve month trading history, with the $80 strike highlighted in orange:
For the various different available expirations for NET options, NU options, or RMBS options, visit StockOptionsChannel.com.
Today's Most Active Call & Put Options of the S&P 500 »
Also see: Manufacturing Dividend Stocks
GGOX Insider Buying
Institutional Holders of MCQ
The views and opinions expressed herein are the views and opinions of the author and do not necessarily reflect those of Nasdaq, Inc.
Noteworthy Thursday Option Activity: NET, NU, RMBS
Published 2 months ago
Aug 28, 2025 at 9:08 PM
Positive
Auto