A total of 1000 shares were filled below $5.00 when the volume spiked at the open. Not clear if it was a block that was dumped or if a bunch of stop loss orders executed as the shares approached $5.00. Unless you had a GTC order out there before the open, not much chance to get anything near the lows.
That was the same thing ETrade was doing for a while after the shares fell. Over the past couple months they removed whatever the restriction was so online is ok again. Merrill still makes you call in or use their SafePass.