This is cheap, the real key to this company is the cash flow and...

This is cheap, the real key to this company is the cash flow and operating leverage. I'm not surprised at it going above 4 , my initial valuation even when it was at 3 was above 4. On a pe basis looks expensive , but cheap on a ev/ ebitda perspective and a growth company like this should be at least 15 -18.
Unearned revenue makes a chunk of liabilities section which is nice to have . One of the strong balance sheets I have seen.
I don't hold ...good luck all. Will add if there is sell off to have that margin of safety.