Yep ... spot on re. SMY's volatility .... above $4.70 there is the breakout level of $5.50. SMY has pushed through this before and then tested (and held) the downside support at $4.70.
Now, if SMY can punch through $5.50 again (esp. if it makes this level or higher at an end of week close) I would regard that as a very, very positive signal that could herald some strong gains for holders.
Best of luck.