stock exchange trade descriptions

[stockton]

I have various questions about the meaning of the various descriptors. Is there anywhere that provides more information about the reality behind the descriptions ?
eg How does an ordinary trade for 4 shares come about ?
Does AT simply include deals that have been through an order book rather than been effected immediately ?

[pje16]

eg How does an ordinary trade for 4 shares come about ?

a low number of shares could be a dividend reinvestment (DRIP)
using the word 'various' twice doesn't really give enough to go on

[stockton]

Thanks. pje. At least that is one explanation. However "O" trades for trivial numbers of shares appear with surprising frequency for non dividend paying stocks.

[pje16]

However "O" trades for trivial numbers of shares appear with surprising frequency for non dividend paying stocks.

Sorry never heard of those
I bow to the more knowledgable Fools

[GoSeigen]

I have various questions about the meaning of the various descriptors. Is there anywhere that provides more information about the reality behind the descriptions ?
eg How does an ordinary trade for 4 shares come about ?
Does AT simply include deals that have been through an order book rather than been effected immediately ?

Is this LSE help page of no use?

GS

[stockton]

"Is this LSE help page of no use?"
Adds a little, but not much.