Shares of First Solar Inc. (FSLR: chart) on Friday rose nearly 24% in their first day of trading on the Nasdaq.

On Thursday, the company offered 20 million shares priced at $20 per share, above the $17 to $19 forecast, raising $400 million. The share-size was increased from 17.5 million shares set at filling. The offering represents almost 29% stake in the company.

Credit Suisse, Morgan Stanley, Piper Jaffray, Cowen & Co., First Albany Capital, and ThinkEquity Partners were the underwriters of the offering.

First Solar utilizes thin film technology, which requires significantly less silicon than the traditional crystalline silicon solar modules.

The company’s shares ended the first day and the week at $24.74 per share, up 23.7% from the IPO price.

The car rental company Hertz Global Holdings Inc. (HTZ: chart) saw its shares nearly 5% in their first day of trading Thursday.

On Wednesday the company offered 88 million shares priced at $15 per share, below the forecast range of $16 to $18, raising as much as $1.32 billion. The offering represents about 27.5% stake in the company.

The stock closed at $15.72, up 4.8% in its first day, but still below the expected range.

Goldman Sachs, Lehman Brothers, Merrill Lynch and J.P. Morgan were the underwriters on the offering.

Private equity funds associated with some of the stockholders of the company, including Clayton, Dubilier & Rice, Inc., The Carlyle Group and Merrill Lynch Global Private Equity have granted the underwriters a 30-day option to buy up to 13.2 million additional shares.

The Park Ridge, New Jersey-based company operates the largest general use car rental brand in the world and one of the largest industrial, construction and material handling equipment rental business in the United States, both based on revenues.

The company stock ended the week at $15.66 per share, up 4.4% from the IPO price.

Shares of Israeli-based broadband service technology developer Allot Communications Ltd. (ALLT: chart) on Thursday surged 29%, a day after pricing its 6.5 million shares at $12, above the $9 to $11 forecast range. The deal was worth $78 million.

The offering represents about 27% in the company.

Shares of the company opened its first day at $14.50, up 20.8%.

Lehman Brothers acted as the lead underwriter on the deal.

The underwriters have the option to buy up to 975,000 shares to cover over-allotments.

The company designs and develops broadband service products that target Internet video.

The successful performance of Allot follows the surge in technology IPOs this year. Last month, shares of Acme Packet Inc. (APKT: chart) rose 70% at start and Riverbed Technology Inc. (RVBD: chart) surged 57% in its debut in September.

The company’s shares closed at $13 a share on Friday, up 8.3% from the IPO price.