Twitter shares plunged below IPO levels Wednesday on the back of weak first-quarter user growth. The move brought many other online-based stocks deep into the red.

The once-highflying, momentum-fueled social media stocks are coming back to earth in a big way Wednesday, led by Twitter's 11% plunge on worries about weak user growth. It's been a rough April and 2014 for most of these names, many of which enjoyed triple-digit percent gains last year:

Social Media Stocks Slide

Ticker

Security

Last

Change

% Chg

MTD

YTD

2013

(TWTR)

Twitter, Inc.

37.88

-4.74

-11.13%

-18.84%

-40.49%

144.81%

(YELP)

Yelp Inc. Class A

54.92

-4.00

-6.79%

-28.61%

-20.35%

191.35%

(TCTZF)

Tencent Holdings Ltd.

62.35

-3.90

-5.89%

-10.04%

-2.65%

90.96%

(P)

Pandora Media, Inc.

22.87

-1.05

-4.39%

-24.57%

-14.02%

149.13%

(WB)

Weibo Corp Sponsored ADR Class A

17.58

-0.72

-3.93%

n/a

n/a

n/a

(SINA)

SINA Corp.

46.97

-1.58

-3.25%

-22.25%

-44.25%

-6.47%

(LNKD)

LinkedIn Corporation Class A

149.65

-3.58

-2.34%

-19.08%

-30.98%

30.33%

(GRPN)

Groupon, Inc. Class A

6.97

-0.12

-1.69%

-11.10%

-40.76%

43.42%

(GOOG)

Google Inc. Class A

530.37

-5.97

-1.11%

-4.92%

-5.44%

49.81%

(FB)

Facebook, Inc. Class A

57.86

-0.29

-0.50%

-3.95%

5.88%

117.36%

(YNDX)

Yandex NV Class A

25.75

0.16

0.63%

-14.71%

-40.32%

19.55%