Stock Spy for Mac

From Stock-Spy:

Have you ever seen a stock chart and wondered what made the stock shoot up like a rocket or drop like a rock?

Stock Spy is unlike any other stock chart because it helps explain what you're seeing. It clearly displays the news and company events which cause the price movements - directly on the chart. Stock Spy shows you relationship between the stock news and the stock price.

Stock Spy's unique NewsChart system simplifies stock research. NewsVolume charts allow important company events to literally, "pop up". You see at a glance how news buzz of a stock has changed over time. You can select a time range with your mouse directly on the chart and narrow your focus to the selected news. Stock news headlines are automatically displayed for your selection and the full story is always one click away.

Stock Spy includes smart: filtering, highlighting and categorization of news.

Stock Spy's FinanceTerms with NewsCharts highlight import types of stock news events.