Inside, hundreds of workers are spending years — and some $700 million — building Goldman Sachs’ big bet on the future of Wall Street. Is there space for both Wall Street and Y’all Street? Similarly, many other banks and financial institutions expanding in Texas are doing so in addition to their Wall Street homes — not instead of them. But the Texas Stock Exchange has an uphill battle to break into this part of Wall Street. Still, even these well-established incumbents acknowledge that Wall Street as an industry now stretches far beyond its namesake location in New York City.