You can set your charts' default settings to match your preferred style. These preferences should stick as long as you've got cookies enabled on your browser.
- Click the Settings tab to decide whether you want to see News Flags, Dividends, Splits, or Volume on your chart.
- Chose a 'Default zoom' level from the dropdown.
- Use the 'Vertical scale' radio buttons to choose a linear or logarithmic scale.
You can also change the zoom level on any individual chart by clicking the links next to the word 'Zoom' or by clicking on the date (on the right side of the chart) and entering your own custom date range.