Notable Monday Option Activity: T, SPR, AMBA

Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in AT&T Inc (T), where a total volume of 313,666 contracts has been traded thus far today, a contract volume which is representative of approximately 31.4 million underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 51.2% of T's average daily trading volume over the past month, of 61.3 million shares..