Omni’s appeal: RFQ execution and zero trading fees. Variational says its liquidity draws on exchanges and OTC dealers, rather than one standalone order book.
RFQ execution
Zero trading fees
Broad derivatives coverage
One-way trading feeOmni
$0.00
The quoted spread still matters. This is our editorial preference, not a measured best-execution ranking.
Omni is PERPSIZE’s editorial favorite. Placement reflects that preference; it is not a data-derived execution ranking. Fees use the account conditions shown. Why we feature Omni →
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Your trade assumptions apply to every fee estimate. Activity metrics keep their own sources and dates.