Monero seems to be quite unstable. What's wrong with the price?
Actually, it is remarkably stable since start, no large pumps and dumps along the way. Mean average price rising since may.
What is the total range of XMR trading ever, including all outliers?
I gather it should be about 0.00039 - 0.01110. If so, these are only 28x apart from each other
For any other coin, it's more. With Bitcoin, the range is 0.001 - 1,236; difference being 1,236,000x.
The XMR OTC thread: https://bitcointalk.org/index.php?topic=578192.0
The first recorded OTC trade was by me for 0.0005 4 days after Monero launched. It went as low as 0.0002 for several trades in the following 2 weeks, which is the lowest as far as I know.
However, for the coin's publicity smooth once hosted an auction here 1 day after launch: https://bitcointalk.org/index.php?topic=577296.0
It was for 100 XMR and I won with a bid of 0.005 BTC, giving a price of 0.00005 (note the zeros). This is lower by an order of magnitude but I'm not sure you want to count it since it wasn't a market trade per se.