Bitcoin Sees Wall Street Warm to Trading Virtual Currency

SAN FRANCISCO — Some of the biggest names on Wall Street are warming up to Bitcoin, a virtual currency that for nearly a decade has been consigned to the unregulated fringes of the financial world.

The parent company of the New York Stock Exchange has been working on an online trading platform that would allow large investors to buy and hold Bitcoin, according to emails and documents viewed by The New York Times and four people briefed on the effort who asked to remain anonymous because the plans were still confidential.

The news of the virtual exchange, which has not been reported before, came after Goldman Sachs went public with its intention to open a Bitcoin trading unit — most likely the first of its kind at a Wall Street bank.

The moves by Goldman and Intercontinental Exchange, or ICE, the parent company of the New York Stock Exchange, mark a dramatic shift toward the mainstream for a digital token that has been known primarily for its underworld associations and status as a…