Camry :: Drain And Fill Transmission - Oil Level

Firstly I have a I4 2007 Camry LE with 102,000km.

I just did a drain a fill on the transmission [I didn't check the level before draining, but i should have]. While draining I did measure how much fluid came out and it was roughly under 3 Liters.

I refilled exactly 3 Liters. Checked the level and it was above the HOT mark. I though i filled up too much but after driving the car for 10-15 mins i brought it back on full level ground, ran it through the gears and checked the fluid level, the level dropped down to the COOL reading.

To be certain i left the car on level ground all night, checked in the morning and sure enough the level jumped back to above the HOT mark on the dipstick.

I have checked every day since the change and every-time I check the level when warm it shows around the COOL marking on the dipstick. Does this mean that my oil level is low?

This is the first drain and fill i did on the car, and as I mentioned i replaced the exact amount that came out.