$STX is one of biggest losers #stocks today. read more:

Seagate Technology PLC (symbol: STX) was one of the worst losers of the
trading day today (2016-04-29), losing -19.07%. The number of shares that
changed hands was 24,437,194, or about 4 times the average daily volume in
the stock.
The closing price was $21.77, amounting to a market cap of $6,450,000,000,
about -63.77% off the highest price in the last 12 months. The stock has
been trading at a range between $21.61 and $60.09.
STX is in the Electronic Components industry, part of the Technology
sector. It first went public in 2002.
Looking at its valuation, the stock is now trading at 10.97 times earnings.