A combination of continuing global financial uncertainty, concerns over exports, and the weak dollar saw the Tokyo Stock Exchange suffer a 4.5 per cent fall today.
That had a knock-on effect for the two videogames giants, Sony and Nintendo, both companies that have a significant portion of their overall business performance tied up in the US.
Sony's price fell JPY 410 (USD 3.8) to JPY 5790 (USD 52.9) in this morning's trading, while Nintendo's dropped by JPY 3000 (USD 27.4) to JPY 63,500 (USD 580.4) - reductions of 6.6 per cent and 4.5 per cent respectively.
Konami too suffered, although less than Sony or Nintendo - its price dropped by 2.7 per cent to JPY 3560 (USD 32.5). Sega Sammy Holdings and Namco Bandai were largely unaffected.
Prices taken from the Tokyo Stock Exchange are correct at time of writing, with part of the trading day still to come.