The recent Japanese earthquake led to supply constraints and consequently higher prices for many of Apple's component suppliers. However, Apple has agreed to absorb the additional costs related to components in exchange for smooth shipments. Although Apple's profitability could be slightly impacted due to higher costs, we believe it's still a market share game for Apple's hit products like the new iPad 2 and so ensuring on time deliveries will put more pressure on the likes of Motorola Mobility and Research in Motion that are trying to work their way into the tablet market. We maintain $420 price estimate for Apple stock, which is about 20% above market price.

OmniVision (OVTI - option chain) stock is trading sharply lower today after Sony (SNE) CEO Howard Stringer said late Friday that his company is supplying camera components to Apple (AAPL). This could pose a threat to OVTI's AAPL business, as OVTI had been the main supplier of image sensors for the iPhone. If you think this stock won't be rising too far in the coming months, then it could be a good time to look at a bearish hedged play on OVTI.

This morning, OVTI opened at $34.06. So far today the stock has hit a high of $34.10 and a low of $32.20. As of 12:15, OVTI is trading at $33.15, down $3.04 (-8.4%). The chart for OVTI looks neutral and S&P gives OVTI a neutral 3 STARS (out of 5) hold ranking.

Most investors would like a "do over."

They look back on certain investments and wish they'd never heard of, much less put money in them. Sure things like your good friend's invention that would make beer in one day from water and weeds. Or your brother's idea of selling real estate on Saturn. Everyone has their own stories. Mine are usually related to private investments in the medical device field or biotech, though I did have one out of Florida that made a "pig" that ran through oil pipelines to check on their safety. After meeting the founder who looked more like a used car salesman that caught a great sale on polyester suits, I should have known better right then. But I didn't.

Two questions on investors' minds are: Should I buy Apple (AAPL), and where is the stock headed? Leading banks and financial advisory firms hire analysts, whose job it is to figure out the strengths and weaknesses of a given company -- and from that data make a recommendation and a projected stock price.

At Morgan Stanley that analyst is Katy Huberty. In a Fortune article she describes two possible scenarios for Apple. One is her best case. The other is her bearish take.

First came the PC, then the notebook and netbook. Now we fast forward to the smartphone and the tablet. These new devices are taking the technology world by storm. Apple (AAPL) could sell 30 to 65 million iPad 2s this year.

As a result, The PC industry is bleeding badly. Look at these numbers:

• February revenue from PC makers in Taiwan is down 20%. The number is significant because Taiwan manufacturers 90% of all PCs.
• Hon Hai (HNHAF), which makes Apple products and PCs for Dell (DELL), saw shipments down 18% in February, as reported in Financial Times.
• Gartner, a research consultancy, lowered PC shipments by 5% to 387.8 million units this month.

iShares MSCI South Korea Index Fund (EWY) April put option implied volatility is at 25, July is at 29; compared to its 26-week average of 27, according to Track Data, suggesting less near-term price movement compared to outer month risk.

CBOE Volatility Index (VIX) closed up 1.53 to 19.44.

Option volume leaders today: Apple (AAPL), Citigroup (C), Netflix (NFLX), Kraft (KFT), according to Track Data.

Update is by Stock Specialist Paul Foster of theflyonthewall.com.

Verizon Communications (VZ), first discussed here on February 12, 2009, at a price of $29.86, continues to power higher, ascending to about $37 with a few hiccups, and I still like the shares here.

In 2011, slow growth and dividend play Verizon should post a 2% to 2.5% revenue gain, after flattish revenue in 2010, with data services being the key revenue increase driver. Meanwhile, Verizon's landline business continues to provide revenue stability.

Apple's (AAPL) iPad 2 got off to a great start during the first weekend of its launch, selling an estimated 400,000 to 500,000 units. Apple holds a substantial lead in the tablet market over competitors like Research In Motion (RIMM), Motorola Mobility (MMI), Dell (DELL), Samsung and LG Display.

How Much Will Suppliers Benefit from iPad 2 Sales in 2011?

Here we take a look at how much various iPad 2 component suppliers stand to gain from the product's success. We assume that Apple will continue to source iPad 2 components from the same set of suppliers throughout 2011.

A new business model is springing up right under our noses. The big players like Apple (AAPL), Amazon.com (AMZN) and Google (GOOG) have put together a one-stop shop in their app stores.

First off, an app store is just that, a place where you can pick and choose the apps you want to download. The app store is also a place where entrepreneurs can develop an app and with permission place it on the iPhone, iPad or Android device.

The fast moving world of investing can turn on a dime, especially if you own technology stocks. Research In Motion (RIMM) was a smartphone darling. But then came the iPhone and now the iPad. Then we have Google's (GOOG) Android following on Apple's (AAPL) heels.

RIM suddenly woke up a found that it had fallen off its perch. Now the company is scrambling to do catch up. BlackBerry is losing North American market share and the company expects to ship only 13.5 to 14.5 million Blackberry's this quarter, down from 14.9 million last quarter, according to Reuters.

A few weeks back, we noted that while Apple's (AAPL) products continue to see huge demand, a key concern for the company is management of supply-related constraints. The recent Japanese earthquake has now added to these concerns. According to market research firm iSuppli, the earthquake may cause logistical disruptions and supply shortages for the newly launched iPad 2. Although Apple remains king of the tablet market, it is expected to face a growing set of challengers in 2011 from Research In Motion (RIMM), Motorola Mobility (MMI), Dell (DELL), Samsung and LG.

We maintain a $420 price estimate for Apple stock, roughly 25% above market price.

"According to the Spectrem Group, which recently polled the country's wealthiest people, they're the most optimistic they've been in months," says Marc Lichtenfeld.

The contributing editor to Investment U explains, "Let's take a look at 3 stocks that millionaires (and aspiring ones) should pay attention to: Apple (AAPL), Bristol-Myers Squibb (BMY) and Varian Medical Systems (VAR).

"And according to Fidelity, 83% of millionaires surveyed said the financial crisis did not shake their confidence in investing. And of those who said they'll invest more money in the stock market, nearly 60% of them plan to buy technology stocks. And just under half expect to acquire pharmaceutical and healthcare stocks.

This post is part of Japan: A Special Report for Investors.

"Japan's tsunami has struck worldwide," says Richard Moroney, the editor of Dow Theory Forecasts, which has maintained a model portfolio of blue chip stocks for over 50 years.

Here, he reviews a number of the top buy recommendations in the newsletter's portfolios to determine the potential risk posed by the recent tragic developments in Japan.

Stocks cited as "Focus List Buys" are are those issues that the service expect to significantly outperform the market over the next 12 months.

Analyst Upgrades

• Cree (CREE) and Rubicon Technology (RBCN) to buy from neutral at Merriman.
• Children's Place (PLCE) to outperform from market perform at BMO Capital.
• Lockheed Martin (LMT) to neutral from underperform at BofA/Merrill.
• Copano Energy (CPNO) to outperform from market perform at Morgan Keegan.
• Motorola Mobility (MMI) to neutral from reduce at Nomura.
• Parker-Hannifin (PH) to buy from hold at KeyBanc.
• Akamai (AKAM), ShoreTel (SHOR), AMB Property (AMB) and ProLogis (PLD) to buy from hold at Stifel Nicolaus.

Apple, Inc. (AAPL) was down at the time of this writing. The shares were off by 3.7% to $332.77. Volume was heavy.

The 52-week low for the stock is $199.25; the 52-week high is $364.90. The one-year chart still looks pretty good, but obviously anything can happen at this point. There's no real way to predict how deep the overall sell-off will get.