According to the September 2015 State Street Global Confidence Index (ICI), global ICI rose to 116.6, up 7.2 points from August’s revised reading of 109.4.
The improvement in investor confidence was underpinned by an increase in North American ICI from 120.6 in August to 133.2 in September.
Confidence among Asian investors also rose by 5.4 points to 97.8, with European ICI increasing by 2.2 points to 95.7.
ICI developer Kenneth Froot said: "In September, all eyes were focused on whether the [US Federal Reserve] would lift rates or not.
“In the current environment of elevated tail risk, indications that the Fed is embarking upon a more shallow rate hiking cycle should help both alleviate market volatility and stabilise the global growth outlook, and this has been reflected in sentiment more broadly this month."
State Street Global Exchange executive vice president Jessica Donohue added that the delayed rate hike has extended loose monetary conditions, which in turn, eased concerns in emerging markets.
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