Have you ever wondered how billionaires continue to get RICHER, while the rest of the world is struggling?

I study billionaires for a living. To be more specific, I study how these investors generate such huge and consistent profits in the stock markets — year-in and year-out.

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Sullivan goes on to say. The top performer was the SPDR Gold Shares ETF (NYSE:GLD), which gained $4.2 billion in assets last month, bringing its total to $49.2 billion. Mays surprise, according to Nadig, was Pimcos Enhanced Short Maturity Strategy Fund (NYSE:MINT), an actively managed money-market proxy that pulled in $596.4 million. That helped bring the firms total ETF assets to $1.55 billion, a nearly 50% increase over Aprils total. Pimco, a fairly recent player in exchange-traded funds, became the 15th-biggest ETF firm, up from 19th in April.

Vanguard gained $2.49 billion in net assets, bringing its total to $103.1 billion good enough for third place. It was helped by its MSCI Emerging Markets ETF (NYSE:VWO), which added $2 billion of assets, raising its total to $23.94 billion. Its the fifth-biggest U.S. ETF. The biggest loser last month was PowerShares QQQ (NASDAQ:QQQQ), the Nasdaq 100 ETF, which suffered worst-in-show outflows of $2.4 billion, lowering its assets to $18.4 billion. BlackRock (NYSE:BLK), iShares parent, saw redemptions of $1.3 billion in May, but it still stood atop the exchange-traded fund world with $368.24 billion in assets, Sullivan Reports.

See more to the article: HERE

Here are some more details on the ETFs mentioned in the article below:

SPDR Gold Shares ETF (NYSE:GLD)

The investment SPDR Gold ETF (NYSE: GLD) seeks to replicate the performance, net of expenses, of the price of gold bullion. The trust holds gold, and is expected to issue baskets in exchange for deposits of gold, and to distribute gold in connection with redemption of baskets. The gold held by the trust will only be sold on an as-needed basis to pay trust expenses, in the event the trust terminates and liquidates its assets, or as otherwise required by law or regulation.

Pimcos Enhanced Short Maturity Strategy Fund (NYSE:MINT)

PIMCO Enhanced Short Maturity Strategy Fund (MINT) is an actively managed exchange-traded fund (ETF) that seeks greater income and total return potential than money market funds, and may be appropriate for non-immediate cash allocations. MINT will primarily invest in short duration investment grade debt securities. The average portfolio duration of MINT will vary based on PIMCO’s economic forecasts and active investment process decisions, and will not normally exceed one year. MINT will disclose all portfolio holdings on a daily basis, and will not use options, futures, or swaps.

MSCI Emerging Markets ETF (NYSE:VWO)

The investment seeks to track the performance of the MSCI Emerging Markets index. The fund employs a passively managed investment approach by investing all or substantially all of assets in a representative sample of the common stocks included in the MSCI Emerging Markets index. This index includes approximately 748 common stocks of companies located in emerging markets around the world.

PowerShares QQQ (NASDAQ:QQQQ)

The investment is a unit investment trust designed to correspond generally to the performance, before fees and expenses, of the Nasdaq-100 index. The fund holds all the stocks in the Nasdaq-100 index, which consists of the largest non-financial securities listed on the Nasdaq Stock Market. The fund issues and redeems shares of Nasdaq-100 Index Tracking Stock in multiples of 50,000 in exchange for the stocks in the Nasdaq-100 and cash.