RE: Today.....Hi karto. There are many sources for the bid/ask ratio as some come with platforms paid for by subscription, others are free but may not be in real time. Such a one can be found on:
https://www.tsx.com/en/index.html
This TSX service is free and they have a tertiary list but do not give many details but it will give you a better idea about what's going on. Just fill in the symbol in the box and enter. Then go down to a black bar that says "Get page 10" and just under that is some small pink lettering. Click that and a box will come up show the above, good luck.
oth