This included repaying other investors and funding a portion of an advance fee in an attempt to obtain a US$20million loan, the SFO said.
Arnott issued false statements to conceal the fraud, the SFO said.
"Mr Arnott earned the trust of a group of investors through his personal association with them. He misappropriated his clients' funds and misrepresented the true position of their investments. The SFO hopes that this outcome will go some way to assuring investors that there is an effective response to offending of this nature," SFO director Julie Read said yesterday.
The loan which Arnott and Derivatek attempted to get was from United States based funds provider, Brockstar Group.
Another New Zealand company - run by now-jailed fraudster Jacqui Bradley - also attempted to get a loan from Brockstar.
In both cases substantial sums had been paid as advanced fees in an attempt to secure loans, the SFO has previously said.
In 2012, the SFO said a formal investigation has been commenced into the New Zealand activities of Brockstar.
The SFO confirmed this morning that its investigation into Brockstar has been closed.
An associate of Arnott, Mark James Whelan, is accused by the SFO of assisting getting investors to put funds with Arnott and Derivatek through his company Global Futures Trading Limited.
Whelan is facing three charges laid under the Crimes Act of theft by person in a special relationship, and seven of false statement by promoter.
His trial on these charges is due to begin on Monday.