As the clock struck midnight, a seismic shift reverberated through global markets following the initiation of new U.S. tariffs. The fallout was immediate and profound, sending shockwaves that impacted stocks, bonds, and commodities worldwide, igniting what many analysts are calling the 'Sell America' trade.

European shares opened with a dramatic plunge, reflecting investors' heightened anxiety over the implications of American protectionist measures. Major indices across the continent posted steep declines, as market participants scrambled to reassess their portfolios in light of America's aggressive tariff stance. Traders reacted swiftly, bolstered by fears of an escalating trade war that may dampen global economic growth.

In the bond market, U.S. Treasuries extended heavy losses, with yields climbing sharply as investors fled to perceived safe havens amidst rising uncertainty. This trend indicates a growing belief that higher tariffs might stifle economic expansion, lending further pressure to government bonds. The dollar, typically viewed as a safe store of value, also faced downward pressure, illustrating a growing sentiment that the U.S. economy could suffer under the weight of its own trade policies.

The energy market was not spared from this turmoil, with oil prices diving sharply as fears of reduced demand emerged. The prospect of a slowing U.S. economy, combined with potential retaliatory measures from trading partners, led to a sell-off in crude futures, signaling concerns about excess supply amid waning global appetite.

In the Asia-Pacific region, stocks mirrored the tumultuous atmosphere, with major indices across Asian markets, as well as Australia’s financial landscape, sliding significantly. Investors across these markets faced a daunting task of navigating through the volatility created by the U.S. policy shift. 

In contrast, safe-haven currencies, including the Japanese yen and Swiss franc, gained ground as investors sought refuge from the escalating economic drama. With increasing uncertainty rattling markets, these currencies have emerged as appealing alternatives amidst the turmoil.

As the day unfolds, analysts are closely monitoring the situation for further developments. The initial market response paints a concerning picture as investors brace for the broader implications of these tariffs. The evolving landscape suggests that the fallout from the U.S. tariff initiative will demand careful navigation from market participants worldwide.

Stay tuned for further updates as we track the ongoing effects of these significant economic shifts and their impact on global markets.