In one of the busiest weeks of IPOs, a whopping nine companies went public last week.

Workday (WDAY -1.19%) was the biggest winner. It had all of the ingredients investors like to see when bidding up a debutante. It's growing quickly. It toils away in the buzzword-happy realm of cloud-based enterprise software. It has seasoned leaders, as the company was birthed by top executives from PeopleSoft.

Realogy (HOUS 3.19%) was the biggest deal in terms of shares offered. The real-estate services giant behind Coldwell Banker, CENTURY 21, ERA, and other property brokerages sold more than $1 billion worth of stock after pricing 40 million shares at $27 apiece.

Basmati rice seller Amira Nature Foods (NYSE: ANFI) has the distinction of being the only company to drop below its IPO price. The provider of packaged Indian specialty rice stumbled, even after pricing its offering well below its original range. Growth is there, but some observers are concerned about the company's ownership structure.

Let's check out the newbies.

Company

IPO Price

Oct. 12 Price

Gain

Diamondback Energy (FANG 0.32%)

$17.50

$17.50

0%

Linn (LINEQ)

$36.50

$38.26

5%

Workday

$28

$48.69

74%

Intercept (NASDAQ: ICPT)

$15

$19.05

27%

Kythera Biopharma (NASDAQ: KYTH)

$16

$19.10

19%

Realogy Holdings

$27

$33.60

24%

Shutterstock (NYSE: SSTK)

$17

$22.00

29%

Ambarella (NASDAQ: AMBA)

$6

$6.23

4%

Amira Nature Foods

$10

$8.30

(17%)

Source: Wall Street Journal.

It may be impressive to see five of the nine rookies clock in with double-digit percentage gains in their first week of trading. And it may come as a surprise that Diamondback Energy and Linn -- two energy-related companies -- were not in on those big moves higher. However, at least they're both trading higher now. Both companies are oil and gas explorers out of Texas. Diamondback may have closed out the week flat, but it has been inching higher this week.

The new trading week seems pretty bare on the IPO front, so these nine stocks will have to satisfy the market's craving for new blood for now.

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