Does anyone trade the LSE's IRS shares? If so, any advice? Are they easy to sell and how exactly do they work? I.e. If I buy some are the LSE simply buying the shares on the foreign index for me and providing me with a quote in Sterling? Any advice would be greatly appreciated. Given the current favourable rate of the pound against the dollar am i correct in assuming that now would be a good time to buy shares trading on the DOW, NASDAQ using this service?

No advice at all guys?

I don't trade them and I think very few people do. Yes, a market maker will just be buying the foreign share and doing the currency conversion. I haven't looked at them recently but they normally suffer from low liquidity, wide spreads, and restricted trading hours compared to the mother exchange. If you are thinking of investing in the US it is going to be much cheaper to open an account with a US stockbroker, also because their charges are very low compared to ours.

Cheers for the advive. Much appreciated.