Bloomberg and Galaxy launched a 10-asset crypto benchmark

Bloomberg and Galaxy Digital Capital Management launched the Bloomberg Galaxy Crypto Index on May 9, 2018, giving professional market users a named, rules-based benchmark for a basket of ten U.S.-dollar-traded cryptocurrencies. Bloomberg Index Services Limited owned and administered the index, while Galaxy co-branded it. Bloomberg Terminal users could call it with the ticker BGCI Index.

The launch mattered less as a new way to trade than as financial-market infrastructure. Crypto prices were quoted across fragmented venues and individual tokens moved very differently, making portfolio comparison difficult. A benchmark administered by an established index provider offered institutions a common reference for measuring a multi-asset segment. It did not, by itself, make the underlying markets regulated, eliminate venue risk or turn the index into an investable product.

Ten assets, with bitcoin and ether capped

Bloomberg’s launch record described BGCI as market-capitalization weighted and aimed at the largest, most liquid portion of the cryptocurrency market. At inception, bitcoin and ether each carried a 30.00% weight. XRP—called “Ripple” in the release—was 14.14%, bitcoin cash 10.65%, EOS 6.11% and litecoin 3.77%. Dash and monero were 1.67% and 1.66%, respectively; ethereum classic and zcash each received 1.00%. Those ten published inception weights sum to 100.00%.

That distribution reveals the design choice. Raw market capitalization could have left a broad-market gauge dominated even more heavily by its largest constituents. The two 30% positions and two 1% positions show that caps and floors were already shaping the basket at launch. The result was still concentrated: bitcoin and ether together represented 60.00%, while the other eight assets shared 40.00%.

The companies grouped constituents across functions such as stores of value, exchange media, smart-contract protocols and privacy assets. Those categories were the issuers’ taxonomy, not a regulatory classification or a finding about how any token would ultimately be used.

A benchmark, not a regulatory seal

BGCI’s institutional significance came from process and distribution. Bloomberg said the methodology was rules based and used data sources that Bloomberg and Galaxy had reviewed. Bloomberg, rather than Galaxy, was the stated index administrator. The terminal ticker also placed a crypto basket inside a workflow already used for conventional market data.

Several limits were material on May 9. The announcement did not identify every pricing venue in the release itself, publish an event-day trading-volume study or demonstrate that the index could be replicated at its displayed levels. The word “liquid” described the selection objective; it was not a guarantee that equally deep markets existed for all ten assets. Likewise, Bloomberg’s description of BGCI as an institutional-grade benchmark was the company’s characterization, not approval by the U.S. Securities and Exchange Commission or another regulator.

No event-day price reaction can be reliably attributed to the index from the reviewed records. This reconstruction therefore makes no claim about bitcoin, ether, BGCI or total crypto-market returns on May 9, 2018. The numerical record used here is limited to the announced inception weights, not a price or performance window.

Later context

A later Galaxy corporate update confirmed that the May 9 announcement preceded the May 18, 2018 launch of a passively managed Galaxy fund designed to track BGCI. That later step helps explain why the benchmark architecture mattered, but it was not yet part of the event-day record. On May 9, the verified development was the creation of the index itself: a standardized measuring stick, not proof of investor adoption or investment performance.