Why does market data sometimes show large price fluctuations outside risk bands?
Thin stocks can produce wide swings because odd lot aggregation ignores price competitiveness.
Blue Ocean applies the same equity market logic used during core hours.
Odd lots are aggregated until a round lot is formed, without regard for whether the price is competitive. In thinly traded names, this can produce top-of-book quotes far away from the broader market.
As a result, market data feeds may show bids and offers that appear to fluctuate well outside typical risk bands.