large block of June 17.5 calls bought by cust to open on ISE. stock is up from $10 to 13 in 2wks and option volume has spiked as a buyer of the March 10 April 12.5 Call diagonal has been actively paying 1.60. OI suggests closing a short in March 10s and writing April 12.5s.

We have seen several days of volume spikes in XNPT over the past two weeks as volatility in the stock has increased (including a $10 swing between 2/21 and today). Volume today looks bullish, with put sellers dominating the flow, focused on June 45 puts, where more than 2100 have traded by noon, 94% of the activity taking place on the bid, and implied vol collapsing by nearly 10points at the money.

Unusual and notably bullish option volume in this Chinese solar cell maker today, with triple the normal volume trading and virtually all of the volume involving in-the-money April 15 Calls. On the day 12368 of these contracts traded in relatively small lot sizes priced from $1.85 to $2.60, lifting implied volatility 10 points to 88% as the stock recovered an early $1 loss to end down 9cents. Earnings and a conference call are expected within the next two weeks, and today?s buyers look to be adding to long call positions that have been building recently.