As credit liquidity evaporated, some investors pounced on a bond fire-sale with the help of electronic trading platforms. Insiders explain how a wild 2 weeks unfolded.

· As volatility rocked credit markets in March and traditional dealers stepped away, electronic trading platforms saw record volumes.
· All-to-all, an anonymous form of trading in which trades are sent out to the entire market — not just dealers — and can be executed by anyone, enjoyed increased activity.
· Investment...