Not too much difference between the two. The main differenece is...

Not too much difference between the two. The main differenece is leverage.

For every say; $1 you can buy up to 20% more AEXO than AEX. Hence you have greater leverage to a rising SP. Same with a greater risk on the downside.

EG:
I bought 1mill AEXO @1.7 cents = $17,000
Same time bought 500,000 AEX @ 3.4 = $17000
Both AEX & AEXO have since risen approx 2 cents from that point. Todays value:

AEXO @ 3.7 = $37,000
AEX @ 5.6 = $28,000

Same investment of $17,000 but AEXO delivered me $9,000 more

cheers