RE: mid price9 Jan 2019 14:08
The only indicator that is reliable is the total volume. I think the majority of the time the buy/sell indicators are probably right, but I've seen many occasions where trades I can identify as mine being wrongly listed as a sell when I've bought, and vice versa.
As a general rule of thumb I work on the basis that if the share price is falling then the majority of trades are sells, and if the share price rises then the majority of trades are buys, regardless of how the trades have been flagged. A large % change either way indicates to me a large majority, and small % change indicates a small majority.