Many investors appear comfortable betting on stocks to continue rising after a surprising strong first half, according to fund flow data. Investors even plowed $1.9 billion into the Invesco QQQ Trust ETF (QQQ) , which is up almost 40% so far this year. The flows are notable because investors have been somewhat reluctant to put more money in stocks this year despite the rally. Aggregate Bond ETF (AGG) and the Vanguard Total Bond Market ETF (BND) also saw inflows this week, so some investors are still hedging their bets on stocks. With investors starting to chase the recent rally, all major regions except Europe saw inflows.

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Persons: Magesh Kumar Chandrasekaran, — CNBC's Michael Bloom Organizations: Trust, Aggregate Bond, Vanguard, Bond Market, Barclays Locations: Europe