Ixia on Thursday priced a larger-than-expected $175 million offering of convertible senior notes, proceeds of which will be used for possible future acquisitions, strategic transactions and other corporate purposes.

The Calabasas maker of network hardware said the convertible senior notes, due in 2015, will bear a fixed interest rate of 3 percent, payable semiannually starting in June. They will be convertible to Ixia common stock at an initial rate of 51.4536 shares per $1,000 in notes. That’s equivalent to about $19.43 per share, which is 30 percent more than the stock’s closing price on Wednesday.

The offering initially was for $125 million in notes when first announced on Wednesday. The company also expects to give initial buyers a 30-day option to buy up to $25 million more in notes to cover any excess demand.

Shares fell $1.30, or 8.2 percent, to $14.56 in morning trading.