A large trader is looking for a big move up or down in shares of animal-health company Zoetis.
More than 13,000 ZTS options have traded so far today, compared to a full-session average of just 456 contracts in the last month. Almost all of that action was in one print.
optionMONSTER systems show that 12,500 October 25 puts were purchased for the ask price of $0.80 this morning. This is clearly a new position, as open interest in the strike was a mere 21 contracts before the trade appeared.
— Option Monster