IntroductionThe 16-company strong Major Regional Bank industry stands out in Zacks Industry Ranks -- these late spring days. The niche ranked #47 out of 265 Zacks industries this week. That rank was #35 last week. For the final spring week of April, I count 6 upside analyst earnings revisions and just 2 downside revisions.What have Regional Bank share prices done -- recently? To answer succinctly, study the group’s top Exchange Traded Fund (ETF) trading performance.The iShares U.S. Regional Bank ETF (IAT) shot up from $36 a share --at the time of the U.S. Presidential Election-- to $46 by the end of 2016. The ETF then hit a spiky high of $49 a share on March 1st. Now, shares trade at $45.That’s a ‘Tell’ -- Regional Banks are an outstanding example of a ‘Trump Trade.’What does that mean? It meant that last November, covering analysts thought the new business-friendly President would provide broad tangible earnings upside across this group of companies. Given the spurt-up in share prices, traders drank that policy-driven Koolaid too.For this banking niche, Trump Trade tangible benefits took two forms. One was a lower corporate tax rate, enhancing profit margins. The second was less Dodd-Frank regulation, cutting costs.In late April, after a March Fed rate hike enhanced bank interest margins, Zacks still ranks this top Regional Bank ETF a #1 Rank (STRONG BUY). The ETF dividend yield rests at 1.46%. With respect to specific ETF share holdings we care about for this piece, PNC is a high 11.2% ETF weight. Comerica is 2.35% weight. Northern Trust is not included.Finally, realize this -- covering analyst’s annual forward earnings estimate revisions drive our Zacks Rank system. In light of that reality, let’s take a very close look into what one leading analyst covering this banking niche had to say.More Stock News: This Is Bigger than the iPhone!It could become the mother of all technological revolutions. Apple sold a mere 1 billion iPhones in 10 years but a new breakthrough is expected to generate more than 27 billion devices in just 3 years, creating a $1.7 trillion market.Zacks has just released a Special Report that spotlights this fast-emergingphenomenon and 6 tickers for taking advantage of it. If you don't buy now, you may kick yourself in 2020. Click here for the 6 trades >>Want the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days. Click to get this free report PNC Financial Services Group, Inc. (The) (PNC): Free Stock Analysis Report Comerica Incorporated (CMA): Free Stock Analysis Report Northern Trust Corporation (NTRS): Free Stock Analysis Report To read this article on Zacks.com click here. Zacks Investment Research