But as you say, there is always a buyer and a seller. So how can we identify an in or out flow?
Lets say on day, 1% of the people sell their equity mutual fund and go to cash (I assume that;s a huge amount for a mutual fund in one day). OK, the fund would need to sell those shares, and the fund balance would be lower.
But somebody, somewhere, had to buy those shares. So where is the 'out'?
I can even paint an odd picture - say the market takes a steep hit during the day, and that 1% get scared and put in 'sell' orders. But the sell doesn't happen until after the close. So what if the market recovered in the last 15 minutes of the day? You'd have all these sells, but on a slightly up day.
Outside of companies buying back shares or releasing new shares, I'm not sure how any in/out flow can happen. I are confused.
-ERD50