|you don't factor in total market weakness|
Market weakness does not take away from a weak stock. This is mentality of the folks who are ok with their stock being down 20% if other stocks are down 20% as well.
Did WDC make a "lower low" today?
Great question, 45 minutes into the trading day. While the question reveals a lack of understanding of technical matters, you can easily view a chart for the answer to your question.
Since you seem new to the market, I'll fill you in on something. Stocks don't go straight up, and stocks don't go straight down.