5 charts of NYSE stocks roiled by ‘erroneous trades’. NYSE Euronext’s NYX-2.04%New York Stock Exchange and the Nasdaq Stock Market NDAQ+0.97% are investigating “potentially erroneous trades” that occurred in the first 45 minutes of Wednesday trading in 140 stocks. Market-maker Knight Capital KCG-22.75% admitted a software problem was to blame, and it was advising clients to use other platforms.

Here’s a look at some of the early, high-volume spikes (or drop) in stocks that are part of the NYSE’s investigation. Plus, a bonus chart in Knight Capital, whose stock is down 20%.

RadioShack Corp. RSH-3.09%
[link to blogs.marketwatch.com]