Notable Thursday Option Activity: SNDK, ZS, MDB

Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in SanDisk Corp (Symbol: SNDK), where a total volume of 169,712 contracts has been traded thus far today, a contract volume which is representative of approximately 17.0 million underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 111.7% of SNDK's average daily trading volume over the past month, of 15.2 million shares. Especially high volume was seen for the $1600 strike call option expiring August 28, 2026 , with 9,498 contracts trading so far today, representing approximately 949,800 underlying shares of SNDK. Below is a chart showing SNDK's trailing twelve month trading history, with the $1600 strike highlighted in orange: Zscaler Inc (Symbol: ZS) saw options trading volume of 23,747 contracts, representing approximately 2.4 million underlying shares or approximately 106.6% of ZS's average daily trading volume over the past month, of 2.2 million shares.

Particularly high volume was seen for the $200 strike call option expiring August 28, 2026 , with 1,525 contracts trading so far today, representing approximately 152,500 underlying shares of ZS. Below is a chart showing ZS's trailing twelve month trading history, with the $200 strike highlighted in orange: And MongoDB Inc (Symbol: MDB) saw options trading volume of 14,337 contracts, representing approximately 1.4 million underlying shares or approximately 97.5% of MDB's average daily trading volume over the past month, of 1.5 million shares.

Especially high volume was seen for the $430 strike put option expiring September 04, 2026 , with 491 contracts trading so far today, representing approximately 49,100 underlying shares of MDB. Below is a chart showing MDB's trailing twelve month trading history, with the $430 strike highlighted in orange: For the various different available expirations for SNDK options , ZS options , or MDB options , visit StockOptionsChannel.com. Today's Most Active Call & Put Options of the S&P 500 » Further SNDK Research: SanDisk MACD SNDK MACD Holdings Channel Articles

Zscaler Inc (Symbol: ZS) saw options trading volume of 23,747 contracts, representing approximately 2.4 million underlying shares or approximately 106.6% of ZS's average daily trading volume over the past month, of 2.2 million shares.

Particularly high volume was seen for the $200 strike call option expiring August 28, 2026 , with 1,525 contracts trading so far today, representing approximately 152,500 underlying shares of ZS. Below is a chart showing ZS's trailing twelve month trading history, with the $200 strike highlighted in orange:

And MongoDB Inc (Symbol: MDB) saw options trading volume of 14,337 contracts, representing approximately 1.4 million underlying shares or approximately 97.5% of MDB's average daily trading volume over the past month, of 1.5 million shares.

Especially high volume was seen for the $430 strike put option expiring September 04, 2026 , with 491 contracts trading so far today, representing approximately 49,100 underlying shares of MDB. Below is a chart showing MDB's trailing twelve month trading history, with the $430 strike highlighted in orange:

For the various different available expirations for SNDK options , ZS options , or MDB options , visit StockOptionsChannel.com.