The DXY (US Dollar Index) measures the value of the US dollar against a basket of six major currencies: the euro (57.6% weight), Japanese yen (13.6%), British pound (11.9%), Canadian dollar (9.1%), Swedish krona (4.2%), and Swiss franc (3.6%). The index was established in 1973 with a base value of 100. A DXY of 105 means the dollar is 5% stronger than the 1973 baseline against this weighted basket.
The DXY moves inversely with risk assets in most environments. A strengthening dollar (rising DXY) typically pressures emerging markets, commodities, and multinational corporate earnings. For AI infrastructure investors, the DXY matters because many supply chain companies are non-US (TSMC in Taiwan, ASML in the Netherlands, Samsung in South Korea) — a strong dollar compresses their valuations when converted to USD terms. Bitcoin also shows a historically strong inverse correlation with DXY, making dollar strength a key regime indicator for crypto allocations.
DXY is one of the most powerful cross-asset signals in global markets. When the dollar strengthens, it creates headwinds for non-US equities (earnings translated back to USD decline), commodities (priced in USD), emerging markets (dollar-denominated debt becomes more expensive), and crypto (risk-off environment). A weakening dollar reverses all of these dynamics.
For Closelook's Global Tech 50 and Global ETF portfolios, DXY direction is a critical allocation input. European and Asian tech stocks can outperform US peers on fundamentals alone, but a rising dollar can erase those gains for USD-based investors. The Weekly Signal framework incorporates DXY as a macro dimension, weighting it at 20% of the composite score for non-US assets.
DXY is a core input in the Market Regime scoring system, affects the Valuation Gap thesis for non-US tech, and drives allocation decisions in the Weekly Signal framework.
