HAO Investment Limited is rated 3 out of 5 in the category financial services. Read and write reviews about HAO Investment Limited. Hao Investment is your one stop financial markets investment service provider. No matter you would like to learn to invest, perfect your investment skill, watch how we trade the market everyday or let us manage your fund, you are at the right place. Investment requires strategy. Our investment strategy is the WYCKOFF strategy – a solid and time proven strategy since 1920s.