Investors have significantly increased their bearish bets on the Australian dollar, reaching a new peak in the week ending October 20. This surge comes amid rising tensions in the Middle East and concerns over the artificial intelligence trade, which have driven investors toward safer assets. The increase in short positions marks the seventh consecutive week of growth, with net bearish wagers rising by 12,901 contracts to 129,065. The broader market has also seen a shift away from riskier assets, with global equities declining and the US dollar gaining strength as a safe-haven currency.