Infinity & Beyond!

New stock to enter my mechanical portfolio this week: INFI. Looking it over, I have to say I would not be a buyer. Obviously it calculates well:

		infi
+	Operating Income After Depreciation	19.14
-	Minority Interest - Income Account	-
=	Income for Calculation	19.14
	Market Cap Yahoo	152,360
	Share Price	5.83
+	Market Cap Calc	152.36
+	Preferred Capital	-
+	Debt in Current Liabilities	0.01
+	Long-Term Debt	0.01
	Cash and Short-Term Investments	126.77
-	Excess Cash	120.59
=	Enterprise Value	31.79
+	Property Plant and Equipment - Net	5.32
+	Receivables	7.46
+	Inventories	-
+	Other Current Assests	2.39
+	Working Cash	6.18
-	Accounts Payable	2.76
-	Current Liabilities - Other	13.27
=	Invested Capital	5.32
	Earnings Yield	60%
	ROIC	360%

But the 19m of operating income does not appear to be maintainable. For some reason they "earned" 45m this quarter while losing money the prior 4 quarters and projected to lose money in 2009. I'd be tempted not to include in my mechanical portfolio, but then it wouldn't be a mechanical portfolio, would it?