One of the important reasons to have stock splits when prices get too high is to give the small investor a chance to participate. The recent rise of many company stocks has started to move away from this concept. To the extent that the uninformed private party or small-time speculator is better off not buying individual stocks, this is probably a good thing. Most investors would be better off participating in the stock market through index funds and exchange-traded funds.

This came to mind yesterday as PetroChina ADR (NYSE: PTR) closed at $236.44, meaning that buying a lot of one hundred shares would cost $23,644. This is a lot of money for most people and even for the avid investor, it is a lot to put in one stock. On Monday, Berkshire Hathaway (NYSE: BRK.A) closed at a mere $126,200 FOR ONE SHARE! But fear not -- you could have bought a single one of Berkshire's 'BRK.B' shares for a paltry $4,229.00. "My pal Warren" has elected not to split the shares of BRK - ever! He believes this promotes shareholders to be longer term investors instead of traders. This has worked out to be true -- sort of -- since due to the high share price, very few shares are traded. Berkshire is an anomaly for another related reason also -- it is the largest company that is not included in the Standard & Poor's 500 index, because there is a required minimum volume of trading, and it does not cross that threshold.

A couple of Stanford grads, now young billionaires, who started a company called Google (NASDAQ: GOOG) have decided to follow Buffett's lead and not split its stock either. Google closed yesterday at $620.11, so you must pay over $60,000 for a hundred shares of this stock. Apple (NASDAQ: AAPL), which closed at $166.98, is more likely to split its shares, maybe 2 for 1, from the talk on the Street, but that is just a rumor and it could change its thinking.

Today, may 31st, closes out the fifth month of an already interesting year in the equities market. Google (NASDAQ: GOOG) is closing right around $500 and looks positioned to move past its old high of $513. Apple (NASDAQ: AAPL) is closing in on another new 52 week and all-time high of $121. Apple and Google have distinguished themselves as the new leaders of the technology world: the horse to chase. They are now the two table setters and the rest are trying to catch these two race horses.

The 1980's and 1990's saw the mantle handed over to Cisco Systems (NASDAQ: CSCO), Microsoft (NASDAQ: MSFT), Dell (NASDAQ: DELL) and Oracle (NASDAQ: ORCL). These companies posted up mega-growth year over year with innovative products. They collectively took advantage of a massive spending cycle by enterprises and governments. Other than Dell, who has major issues, the other three are back and growing at decent levels again. But the leadership belongs to Google and Apple.

Google and Apple have one very strong bond in common. They both participate in growing sectors within the technology space and they are taking market share. It's one thing to take market share of a small growth industry, but it is quite another when a company is taking share and the industry is growing like a weed. For example, the restaurant industry is growing at about 6%, half from menu price increases and half organically. Any restaurant chain growing at a 10% or higher level is taking market share.