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Notable Wednesday Option Activity: FCF, GKOS, SNOW

City noticeboard, Trade Hub UK (2026-07-29): Glaukos Corp (Symbol: GKOS) saw options trading volume of 5,959 contracts, representing approximately 595,900 underlying shares or approximately 86.5% of… Primary source: original at Nasdaq (nasdaq.com).

Glaukos Corp (Symbol: GKOS) saw options trading volume of 5,959 contracts, representing approximately 595,900 underlying shares or approximately 86.5% of GKOS's average daily trading volume over the past month, of 688,575 shares. Especially high volume was seen for the $140 strike put option expiring August 21, 2026, with 2,552 contracts trading so far today, representing approximately 255,200 underlying shares of GKOS. Below is a chart showing GKOS's trailing twelve month trading history, with the $140 strike highlighted in orange:

And Snowflake Inc (Symbol: SNOW) saw options trading volume of 37,815 contracts, representing approximately 3.8 million underlying shares or approximately 85% of SNOW's average daily trading volume over the past month, of 4.5 million shares. Particularly high volume was seen for the $160 strike put option expiring September 18, 2026, with 2,623 contracts trading so far today, representing approximately 262,300 underlying shares of SNOW. Below is a chart showing SNOW's trailing twelve month trading history, with the $160 strike highlighted in orange:

For the various different available expirations for FCF options, GKOS options, or SNOW options, visit StockOptionsChannel.com.

Today's Most Active Call & Put Options of the S&P 500 »

Further FCF Research:

The views and opinions expressed herein are the views and opinions of the author and do not necessarily reflect those of Nasdaq, Inc.