Mr Spread,
Thank you for the clarification re "short interest". I was tricked - I was racking my brains re short interest in an options context (he say defensively).
DDE's "sounds fun" - that bought a smile to my face.
I'm assuming you are familiar with Excel. OK, you have your prices from your quote vendor or the internet. Simultaneously, you have Excel running. Click on a price on your quotes, then click on a cell in Excel, then Copy, Paste, Special, Paste Link. The price will appear in the Excel cell and, in most cases (depending on availability of the facility), the cell in Excel will update at the same time as your quotes.
The value in the Excel cell can now be used for realtime/delayed or end-of-day calculations.
A very simple example of use. Standard prices available are current, high, low, previous close, open; maybe previous high, previous low, etc.
It may be useful to know where the current price is in relation to the open, high, low, for example.
Assume the current price is in cell A1, open in B1, High in C1, low in D1 and previous close in E1.
In cell B2, enter
=A1-B1
for current in relation to the open;
In C2,
=A1-C1, current vs high
In D2,
=A1-D1, current vs low
In E2,
=C1-D1, high/low range
In F2
=B1-E1, open vs close, ie any Gap
Etc.
These will provide data in point terms; it's also useful to show these in percentage terms.
Please ask if I can help further (no trick questions).
Grant.