5 of Last Week's Biggest Winners

What's better than momentum? Mo' momentum.

Let's take a closer look at five of this past week's biggest scorchers.

Company	May 20	Weekly Gain	My Watchlist
eLong (Nasdaq: LONG  )	$26.52	76%	Add
Primedia (NYSE: PRM  )	$7.03	61%	Add
Orthovita (Nasdaq: VITA  )	$3.83	40%	Add
Jiayuan.com (Nasdaq: DATE  )	$14.34	34%	Add
MAKO Surgical (Nasdaq: MAKO  )	$31.98	27%	Add

Source: Barron's.

eLong was the market's big winner, soaring 76% after Expedia (Nasdaq: EXPE  ) beefed up its stake in the Chinese travel portal to 56%. Chinese dot-com darling Tencent initiated a position in Ctrip by acquiring a roughly 16% stake.

Shares of Primedia took off after the provider of housing marketing solutions agreed to be acquired by a private equity firm. TPG Capital will pay $7.10 a share in cash to snap up Primedia.

Orthovita spiked after the maker of medical implants for bone-based ailments received a buyout bid from Stryker (NYSE: SYK  ) . The all-cash offer of $3.85 a share is a 41% premium to where the stock had closed the previous trading day.

There was no love connection between investors and Jiayuan when the Chinese dating website went public two weeks ago. Jiayuan actually closed out its first abridged week of trading below the $11 IPO price. Mr. Market had a change of heart this past week, bidding the shares higher.

Finally, we have MAKO making the grade. The medical upstart soared after being added to Goldman Sachs' "conviction buy" list. The analyst sees MAKO "in the early stages of its growth trajectory" despite a healthy run before the bullish note.

It was a great week for these five stocks. Now let's see if they're up for an encore.

Which of these five stocks do you think will continue to move higher? Share your thoughts in the comment box below.