Fed expressed concerns that "flash crash" could become more common

Not yet, anyway. It's not built to recognize risks more than a few years away.

The sudden move to let Swiss franc rise jolts currency markets.

Near-zero interest rates have Twitter turning to bonds to raise cash.

We look at vulture funds and what they do.

As we head towards the debt ceiling deadline, stocks are looking wobbly, and Congress wobblier still. But the debt market looks weirdly zen.