Low volumes are saving us from moving down with the market...

Low volumes are saving us from moving down with the market lately - I wont complain about that. I do note that almost every day, we bubble up around 4%-9%, and then suddenly in the last 20 minutes of trade, it's sold down to zero, or a negative gain.

Any ideas who is doing this and why? The sell downs at the end of the day are sometimes by such tiny volumes (under $500, so probably a sophisticated transation) and looks very intentional.

There's also lots of sneaky volume going through, I'd say someone is accumulating by stealth. Very delicate buying of around $100k a day under the radar (with no price movement)