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I saw it pegged at 123.47

Stocks have two prices. I guess this would be reflected in test data.

Bid/ask?

rounding

Rounding from what? 123.456 to 123.47?

maybe 2 passes? 123.45678... -> 123.4568 (4 decimal places is common in finance) then to 2 places for the retail muppets 123.46

:)