$IWM, an ETF tracking small-cap stocks, experienced fluctuations in its value over the past two days. It pulled back 1.3% on 17th July, then rebounded on 18th July, going from red to green. It had a significant drop of 2.3% from its 52-week high on the morning of 18th July. The ETF showed volatility with rapid changes in direction, prompting varied reactions from traders.