Last year, ECB president Mario Draghi pledged to do whatever it takes to preserve the currency.
More recently, the ECB said that European banks had repaid €137 billion worth of emergency loans, raising hopes the financial sector is on the mend.
"The last euro bear seems to have died on Friday," analysts at Nomura proclaimed in a research note, saying the currency market is showing signs of "EURphoria."
The euro is now firmly above $1.35, topping a key technical level that analysts say could pave the way to $1.40.
That's a far cry from where it was at the height of Europe's debt crisis last July, when it fetched about $1.20.
In another bullish sign, investors increased long bets on the euro by $2.3 billion last week, according to data from the Commodities Futures Trading Commission.
"It is hard to see a strong case for a sustained euro rally, as the eurozone continues to suffer from a severe growth shortage," said the Nomura analysts.
The euro's strength comes at a time when other central banks are moving toward policies that effectively weaken their currencies.
The concern is that a stronger euro will make European exports more expensive on the global market, potentially a major setback for euro area economies struggling to regain competitiveness.
Germany, the region's export powerhouse, has been particularly concerned.
Chancellor Angela Merkel and other top German officials have expressed concern about recent moves by the Bank of Japan, which many critics say is deliberately trying to weaken the yen.
The rhetoric from Berlin raised fears about a currency war, but the ECB is expected to stay on the sidelines.
"The Europeans are neutral," said Tommy Malloy, chief analyst at FX Solutions. "They're not in a position to dictate anything in terms of the direction of the currency."
While eurozone officials would probably welcome a weaker currency, they are unlikely to do anything that would undermine the improved sentiment toward the euro, he added.
"The short-term currency strength may be the bitter pill they have to take in exchange for improved sentiment," said Malloy.
Others believe a currency war is already underway, and that Europe is wise for sitting it out.
"We have been in a currency war since 2010," said James Rickards, senior managing director at Tangent Capital Partners and author of Currency Wars: The Making of the Next Global Crisis. "Right now, we are in a period where the fighting is more visible."
The Fed's goal is not just to double U.S. exports, as President Obama has said, but to "import inflation" by increasing import prices, he said. This strategy is politically expedient, but it will not lead to sustained economic growth, according to Rickards.
"Europe is doing everything right," he said. "You don't promote exports with a cheap currency, you promote exports with good products."
Tom Cooley, economics professor at the NYU Stern School of Business, said the latest monetary policy moves do not constitute a currency war, although he acknowledged that there can be unintended consequences for exchange rates.
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|Overnight Avg Rate||Latest||Change||Last Week|
|30 yr fixed||4.35%||4.32%|
|15 yr fixed||3.38%||3.33%|
|30 yr refi||4.37%||4.33%|
|15 yr refi||3.37%||3.35%|
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