It was a tough start to the week for technology stocks.
The Nasdaq, which has been the best performing market index of the year, fell more than 1% Monday. So did CNNMoney's Tech 30 index. The Dow and S&P 500 also ended lower, but not nearly as much.
Despite the sell-off, stocks regained some lost ground late in the trading session. The Nasdaq was down 2% earlier in the day.
Netflix(NFLX) was under the most pressure. The stock fell almost 7% and was the biggest loser in the Tech 30.
It appears that Netflix investors are worried about the possibility of competition from Apple(AAPL) after the Wall Street Journal reported that the company is exploring a partnership with Comcast(CMCSA) for an Apple-branded TV service. Shares of Apple were actually one of the few big tech stocks moving higher.
"$AAPL the one day apple goes up the nasdaq tanks...no luck with this stock," said BarryBye on StockTwits.
But Netflix wasn't the only momentum tech taking a beating. Some other well-known Internet stocks, including Yahoo!(YHOO), Linkedin(LNKD), Twitter(TWTR), Priceline(PCLN) and Facebook(FB), also suffered.
StockTwits trader StrayTrader wasn't surprised by the tech sector's decline.
"$LNKD$NFLX never had any rational basis for valuations at their peak levels ... both could plunge from here and still be overvalued," he said.
"The old stairs up, elevator down saying is in full effect. $PCLN, $NFLX," he said.
Biotech stocks, which had been on a tear this year, also pulled back. The iShares Nasdaq Biotechnology ETF(IBB) dropped almost 3%. The sector is considered speculative because investors are in many cases betting on drugs that have yet to be approved. The leaders in the industry, while profitable, also tend to trade at very high valuations.
Shares of Nu Skin(NUS) surged over 18% after the company said it was fined around $700,000 for its business practices in China. The beauty products marketer had previously disclosed that it was being investigated by Chinese regulators, but the relatively small penalty seems to be a relief to investors who had feared a more major regulatory blow.
"$NUS Wow you gotta be kidding me ... fine is like glass of water in an ocean for NUS, this stock has buy written all over it! Very bullish," said Championinvestor.
Herbalife(HLF), the nutritional supplements distributor that uses a similar multi-level marketing sales model as Nu Skin, also rallied on the news. Herbalife revealed earlier this month that it is being probed by the Federal Trade Commission.
The company has been in the crosshairs of hedge fund manager Bill Ackman, who has publicly called it a pyramid scheme and unveiled a large bet that its stock price would fall. He also recently disclosed what he says are more shady tactics by the company in China.