The Nikkei with a piece on Mrs Watanabe, as Japan's retail investors are collectively known.

  • Japanese currency traders, who tend to be contrarian, continued to buy the lira even as it lost value. But the currency's crash since last week has forced many to cut their losses or face margin calls.
  • "We saw many Japanese retail investors sell the lira for the yen"
  • Large forex brokerages have urged stepped-up risk management since the weekend, such as through reducing leverages or increasing margins.

Here is the link for more

And … the losses from trying to counter the trend are not limited to Mrs. Watanabe I reckon

Update: