There is a realtime option for Yahoo at extra cost.Quote from Pekelo:
Because they are not real time. Right now there is no such a thing what you asked for...
Quote from rwk:
There is a realtime option for Yahoo at extra cost.
You can have all the trades with occasional timelag or sampled quotes with minimal lag. But as long as you are using the Internet, you cannot have both. The only way you can get everything with minimal lag is with a dedicated line, which is very expensive.