During President Obama's first 100 days in office, the major U.S. averages slipped to multiyear lows amid a global meltdown in financial markets, leading investors to fear the worst.

But despite that, stocks are essentially unchanged from where they sat on Inauguration Day.

Sure, it's hard to judge the new president after a short time in office. Even Obama acknowledged that while the first 100 days are going to be important, "it's probably going to be the first thousand days that makes the difference."

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For now, though, investors can examine what has occurred in the different sectors of the market and judge how Obama's first major decisions and policies affected trading. At first glance, it's easy to spot nearly a perfect V-shaped chart for the

Dow Jones Industrial Average

, the

S&P 500

, and the

Nasdaq Composite

, all of which hit a low point in March before rising sharply to where they currently stand.

"After the first 100 days we're back where we started," said Paul Mendelsohn, chief investment strategist with Windham Financial. "We're right back to the level where we were on the day he took office. It's hard to say whether what we've seen is due to him becoming president or that things couldn't get any worse than they were. The fact that we're right where we were shows the market is satisfied, although it's not a ringing endorsement."

Robert Pavlik, chief market strategist with Banyan Partners, said that he was initially surprised by the early weakness in the market after Obama took over the White House. "I didn't think we were going to be as weak as we were, and I'm equally surprised by this recovery so far," he said. "There's a lot of anticipation for growth for the rest of year."

Much like the move in the major averages, a handful of sectors are essentially unchanged over the last 100 days. Many exchange-traded funds, or ETFs, are trading at nearly the exact spot they were on Jan. 20. For instance, the

PowerShares Dynamic Financials

(PFI) - Get Report

ETF, the

Telecom HOLDRs

(TTH)

ETF, and the

ProShares Ultra Industrials

(UXI) - Get Report

ETF were among several trading at nearly the same price as they did on Inauguration Day.

Surprisingly, aerospace and defense names were also flat after Obama's first 100 days. The

PowerShares Aerospace & Defense

(PPA) - Get Report

ETF and the

iShares Dow Jones U.S. Aerospace & Defense

(ITA) - Get Report

are unchanged from late January after rebounding from the March lows.

That's puzzling to market watchers who expected defense stocks like

General Dynamics

(GD) - Get Report

,

Northrop Grumman

(NOC) - Get Report

and

Lockheed Martin

(LMT) - Get Report

to sink after Obama took office.

"The biggest surprise to me is the aerospace and defense sector," Mendelsohn said. Pavlik agreed that "these stocks should be down," although he's not completely surprised as the U.S. is still engaged in wars in Iraq and Afghanistan.

Early Cyclical Stocks on the Rise

Of course, there are a few outliers and most are trading in a specific directions because of policies (or lack thereof) enacted by the Obama administration. The president signed into law the $787 billion American Reinvestment and Recovery Act in February, which has helped support industrial and early cyclical names.

"The stimulus package has clearly had a role," Mendelsohn said. "In part, some of it may be the fact that it looked like the end of the world in January. But on the other hand, a lot has been done that is beneficial to the market."

Pavlik added that "you wouldn't have that early cyclical comeback without the stimulus package."

For instance, the

Retail HOLDRs

(RTH) - Get Report

ETF is up about 8% from Jan. 20, thanks to big gains in

Amazon.com

(AMZN) - Get Report

,

Best Buy

(BBY) - Get Report

and even

Walgreen

(WAG)

.

"Early on, I was skeptical about a recovery in the retail area," said Pavlik. "It was hard to believe that it would happen, but the market has seen a confirmation that personal spending has improved and consumption is up. Maybe that's wishful thinking."

Meanwhile, materials have performed extremely well. The

Materials Select Sector SPDR

(XLB) - Get Report

has added more than 10% since Jan. 20 as individual names like

Monsanto

(MON)

,

DuPont

(DD) - Get Report

and

Freeport-McMoRan

(FCX) - Get Report

have all seen strong rallies.

Obama's ambitious $75 billion plan to keep as many as 9 million Americans from losing their homes to foreclosure, as well as other initiatives undertaken in order to help stabilize the housing market, have made homebuilders among one of the top performing sectors in the administration's first 100 days. The

SPDR S&P Homebuilders

(XHB) - Get Report

ETF is up roughly 15% over that time.

Among individual housing names,

D.R. Horton

(DHI) - Get Report

has rallied more than 90%,

KB Home

(KBH) - Get Report

has added 38%, and

Lennar

(LEN) - Get Report

is up 29%.

Meanwhile, technology has seen quite a rally. Since Jan. 20,

Advanced Micro Devices

(AMD) - Get Report

has surged 62%,

Apple

(AAPL) - Get Report

has jumped 47%,

IBM

(IBM) - Get Report

has added 25%,

Cisco

(CSCO) - Get Report

is higher by about 20%, and

Dell

(DELL) - Get Report

is up 12%.

"Technology had been really beaten up, and I think it was due for an early cycle comeback," Mendelsohn said. "Demand for computers dropped to nothing and now is starting to come back. That's part of the normal recovery cycle."

Obama's apparent support for nuclear power has helped related stocks, as the

Market Vectors Nuclear Energy

(NLR) - Get Report

ETF has added more than 8% since Jan. 20. In fact, lots of energy stocks are doing well. For instance, the

Oil Service HOLDRs

(OIH) - Get Report

is up 25%.

Health Care, Utilities Trending Down

Health care stocks have stumbled as the Obama administration seeks to expand the government's role in health insurance coverage. Without a concrete plan devised during Obama's first 100 days in office, market analysts say it's no surprise the sector is trading down.

"You have to keep in mind that when you have what is essentially a collapse in the financial market, there are things that need to be pushed off the table until a later date," said Pavlik. "That's why you're not seeing a real follow through in this area yet."

It's not just health care names losing ground. Pharmaceuticals and biotech names have fallen hard since Jan. 20. The

Pharmaceutical HOLDRs

(PPH) - Get Report

is down about 10%, and the

iShares Nasdaq Biotechnology

(IBB) - Get Report

is down about 5%.

Utility stocks have also been hammered during Obama's turn in office as investors wait for an official statement on emissions trading, or cap-and-trade. The

Utilities SPDR

(XLU) - Get Report

ETF is down almost 11%, as companies like

American Electric Power

(AEP) - Get Report

,

Dominion Resources

(D) - Get Report

and

Entergy

(ETR) - Get Report

have fallen hard.

"I would say that clearly has to do with the cap-and-trade," Mendelsohn said. "We have to be careful of this sector until a defined cap-and-trade plan comes out."