Notable Thursday Option Activity: PSIX, ALAB, WDFC
Among the underlying components of the Russell 3000 index, we saw noteworthy options trading volume today in Power Solutions International Inc (Symbol: PSIX), where a total of 2,847 contracts have traded so far, representing approximately 284,700 underlying shares. That amounts to about 72.6% of PSIX's average daily trading volume over the past month of 392,400 shares. Especially high volume was seen for the $45 strike put option expiring November 20, 2026, with 2,592 contracts trading so far today, representing approximately 259,200 underlying shares of PSIX. Below is a chart showing PSIX's trailing twelve month trading history, with the $45 strike highlighted in orange:
Astera Labs Inc (Symbol: ALAB) saw options trading volume of 27,552 contracts, representing approximately 2.8 million underlying shares or approximately 71.3% of ALAB's average daily trading volume over the past month, of 3.9 million shares. Especially high volume was seen for the $275 strike call option expiring October 30, 2026, with 2,672 contracts trading so far today, representing approximately 267,200 underlying shares of ALAB. Below is a chart showing ALAB's trailing twelve month trading history, with the $275 strike highlighted in orange:
And WD-40 Co (Symbol: WDFC) saw options trading volume of 911 contracts, representing approximately 91,100 underlying shares or approximately 69.7% of WDFC's average daily trading volume over the past month, of 130,675 shares. Particularly high volume was seen for the $230 strike call option expiring November 20, 2026, with 766 contracts trading so far today, representing approximately 76,600 underlying shares of WDFC. Below is a chart showing WDFC's trailing twelve month trading history, with the $230 strike highlighted in orange:
For the various different available expirations for PSIX options, ALAB options, or WDFC options, visit StockOptionsChannel.com.
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