I wouldn't worry here (at least for now unless it breaks the...

I wouldn't worry here (at least for now unless it breaks the uptrend).

If you follow the chart (both daily and intraday) and try to think what tricks longs and shorts may pull and their state of mind, you can trade most peaks/troughs (or at least be at ease watching it). You also need the help of intraday MA lines.

Here is what happened today:

State of mind: BAL ran strong yesterday. Needed to wait for A2M to catch up.
Open: Gap Down in Good Market (all good)
10:00-10:30: Buy anywhere. Rest assure you can sell at the $8.20 gap (first a2m up move triggered that).
11:00: Wait for the first sign of intraday a2m weakness (even a fake one) and short (target around 7.83 which was the lower bound of the uptrend channel)
11:30: Wait for a2m to move up. BAL runs again with it. But expect A2m to go much stronger (%-wise) as it needs to catch up.