Note this is £50m on 3 *months* business

That's better than 43% profit margin.

The book "Fabless semiconductor implementation" by Kumar indicates that a profit margin of 30-50% is usual in this industry. So a bit above the industry mean.

Tesco do about 6% while there competitors in the rest of Europe do about 5% for comparison.

I *like* ARM.

But I just wish there were more companies *like* it rather that it seeming to be the *sole* successful example of a *lasting* and growing UK wafererless fab. Zetex got bought by Diodes In of Texas some time back so I don't think there are *any* UK owned wafer fab operations *left* in the UK.*

*But I'd happily be proven wrong.