Past performance does not indicate future returns, but seeing poor performance on an ETF you like is unnerving. In those moment, it's worth remembering that a good strategy should deliver strong risk adjusted returns over the full market cycle. There might be moments where the results look like luster compared to their benchmark or peers.But it's more important to know that if that underperformance makes sense given the market conditions, if a fund stumble when you expect it, it should also recover when you ...