I need guaranteed investment return of 15% on 300,000. Any ideas?

I hope that question is not a serious one!

If you are in the U.S., the only "guaranteed" investment return is that of treasuries and even then you can lose to inflation.

There does not exist a guaranteed return of 15%. Finance 101 says that the greater the expected return, the greater the risk. To achieve 15% requires risk which means it is not a guarantee.

Sorry to have to break this to you!

Gov gilt edge bonds

Try world capital partners they buy property in las vegas and only an investment of 50k is needed so you cld do it 6 times. Return is far greater than 15%

http://www.worldcapitalpartners.co.uk/

No such thing as a 15% guaranteed return. Anyone who tells you otherwise is lying.

You may need 15% guaranteed, but you won't get it. You are engaged in a flight of fantasy.

15% returns is very high to obtain. First of all you need to set a time horizon. Most research shows that an 8% investment is most likely to be achieve on a consistent basis provided that you diversify your investments into different asset classes i.e. equities (US, International, Emerging Markets), Real Estate, Commodities, Fixed Income, Alternatives (Hedge Funds, Private Equity).
With 300k, your best best will be to diversify your investment into a few mutual funds, or maybe try to get some separate managed accounts by going to an RIA. If you are lucky you might be able to get to a Hedge Fund (but 300 is too little for most hedge funds). I will suggest you develop an investment strategy and implement it. On the other hand if you are adventurous, you might want to try talking to a Private Equity shop who might be willing to take your money, but they are usually reserved for institutional investors with tons of money (we are talking millions).
Another idea that comes to mind is playing the real estate game in other countries, or investing on companies abroad but those investments are very risk.
Just a word of caution, be very careful of people promising high returns...remember past performance is no guarantee of future results...

You're wasting your time.

Yup. Buy a home in Los Angeles.

i invest in forex. 50% return per year. it's very guaranteed, depends on how you do it

An investment in a company matched 401(k) offers an immediate 100% or 50% return, though you probably wouldn't be able to invest the entire 300,000

Here is a great way to invest.
www prospera-fund dot com
They are invested with several traders in stocks and FX accounts, (diversified).
There you can invest money to earn 10% a month compounded! After testing with 100.00 it works, and so I invested more, four different options, all 10% a month, "offshore investing".
Examples of compounding: 1000.00 after one year: 3130.00.
or, 200.00 after 5 years: 60,000.00
Do it, and forget it for 5 years, you'll not be sorry.

Source(s):

www.prospera-fund.com
refer. luckyrick