Ok here's a simple example using the S&P500 index:
The expense ratio of Vanguards SP500 fund is 0.18%
https://flagship.vanguard.com/VGApp/hnw/FundsFeesMinimums?FundId=0040&FundIntExt=INT
The expense ratio of the SP500 ETF (ticker SPY) is 0.08%
http://finance.yahoo.com/q/pr?s=spy
You get a net savings of 0.10% off of yearly expenses by going ETF instead of a mutual fund.
How they claim a whopping 30% gain I have no clue. Unless they're talking about those ETF's that track a specific sector. But then you'll be dealing with LOTS more price volatility depending on what sector it is.
The expense ratio of Vanguards SP500 fund is 0.18%
https://flagship.vanguard.com/VGApp/hnw/FundsFeesMinimums?FundId=0040&FundIntExt=INT
The expense ratio of the SP500 ETF (ticker SPY) is 0.08%
http://finance.yahoo.com/q/pr?s=spy
You get a net savings of 0.10% off of yearly expenses by going ETF instead of a mutual fund.
How they claim a whopping 30% gain I have no clue. Unless they're talking about those ETF's that track a specific sector. But then you'll be dealing with LOTS more price volatility depending on what sector it is.