* Add failing test for BRK.B OSI option ticker parsing
Adds test case to ParseOptionTickerOSI to reproduce issue #9341 where
Symbol.ParseOptionTickerOSI throws on tickers containing a dot (e.g. BRK.B).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* Fix OSI option ticker regex to support dots in underlying symbol
Extends _optionTickerRegex from [A-Z0-9]+ to [A-Z0-9\.]+ so that
symbols like BRK.B are accepted by ParseOptionTickerOSI.
Fixes#9341
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
Alexandre Catarino
3b1352fba0