The benchmark SPDR S&P 500’s 5% drop in the past five days raises two key questions: Where can you go to avoid more losses and when do you re-enter the stock market? The tumbling SPY (SPY), the most actively traded ETF, with $172 billion in assets, tripped some bearish signals. It’s broken its 200-day moving average for the first time since 2012. And it’s breached support at the interim low of 190.55.