Wmax monitoring: CME outage impacted the global market, and lack of liquidity intensified volatility; gold is heading towards its best year since 1979, with support at $4220-4230 and resistance at $4280-4300; silver broke through $57 for the first time and hit a record high, with support at $55-55.5 and resistance at $58-58.5. Operational suggestions: Intervene with light positions at $4230-4240 for gold, and try to enter with very light positions at $56-56.5 for silver. Be wary of the risks of policy changes and reversal of capital sentiment.