Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Jamba Inc (JMBA), where a total volume of 12,101 contracts has been traded thus far today, a contract volume which is representative of approximately 1.2 million underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 742.4% of JMBA's average daily trading volume over the past month, of 162,990 shares. Particularly high volume was seen for the $15 strike put option expiring December 18, 2015, with 6,050 contracts trading so far today, representing approximately 605,000 underlying shares of JMBA. Below is a chart showing JMBA's trailing twelve month trading history, with the $15 strike highlighted in orange:

Loading+chart++2015+TickerTech.com

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

Zoe's Kitchen Inc ( ZOES) options are showing a volume of 3,823 contracts thus far today. That number of contracts represents approximately 382,300 underlying shares, working out to a sizeable 95.5% of ZOES's average daily trading volume over the past month, of 400,375 shares. Particularly high volume was seen for the $30 strike put option expiring December 18, 2015, with 1,909 contracts trading so far today, representing approximately 190,900 underlying shares of ZOES. Below is a chart showing ZOES's trailing twelve month trading history, with the $30 strike highlighted in orange:

Loading+chart++2015+TickerTech.com

And MicroStrategy Inc. ( MSTR) saw options trading volume of 665 contracts, representing approximately 66,500 underlying shares or approximately 68.8% of MSTR's average daily trading volume over the past month, of 96,635 shares. Especially high volume was seen for the $175 strike call option expiring January 15, 2016, with 424 contracts trading so far today, representing approximately 42,400 underlying shares of MSTR. Below is a chart showing MSTR's trailing twelve month trading history, with the $175 strike highlighted in orange:

Loading+chart++2015+TickerTech.com

For the various different available expirations for JMBA options, ZOES options, or MSTR options, visit StockOptionsChannel.com.