Apple's annual dividend decision day: A raise America has been waiting for
Andrew Burton | Getty Images. Apple CEO Tim Cook said an upcoming iOS update will allow users to turn off a software function that purposefully slows down phones with older batteries. · CNBC

With Apple set to report second-quarter profits Tuesday, it's only a little bit of an exaggeration to say all of Wall Street's about to get a little bit of a raise.

That's because the spring is when Apple typically announces its annual dividend hike. After a 24 percent jump in Apple shares this year, their yield is just about 1.6 percent, well below its peak and even below the yield of the Standard & Poor's 500 and its corresponding ETFs like IVV (NYSE Arca: IVV) and SPY (NYSE Arca: SPY) which yield roughly 1.9 percent.

And that matters, even to people who don't directly own Apple (NASDAQ: AAPL) shares, because the world's most-valuable company —that is sitting on a stockpile of cash that has topped $250 billion — is a core holding of both index mutual funds and the inexpensive exchange-traded funds held by more than 5 million U.S. households, according to the Investment Company Institute.

"This is normally the quarter when they talk about (dividends and stock buybacks) and we expect it to be the focus,'' said CFRA Research analyst Angelo Zino. "No one will really care about the iPhone results ahead of a massive launch of the iPhone 8 [in September]."

Everybody has a stake in Apple this year in particular, since the stock's recent run to as high as $145 from about $92 last June has been driving indexes and index funds.

One measure of Apple's recent importance: It accounts for almost 30 percent of the gain in the Dow Jones Industrial Average since it hit 20,000.The next-most important stock in the 6 percent-plus rise for Dow ETFs this year — DIA (NYSE Arca: DIA) and IYY (NYSE Arca: IYY) — has been airplane giant Boeing (NYSE: BA).

In the world of ETFs, Apple shares loom large. Apple is roughly 15 percent of the S&P 500 Technology Index ETF (XLK (NYSE Arca: XLK)) and 17 percent of the $3.3 billion iShares U.S. Technology Fund (IYW (NYSE Arca: IYW)). Apple is 3.66 percent of the S&P 500 ETF, according to Morningstar.

Top annual dividend payers

  1. Exxon Mobil: $12.440 billion

  2. Microsoft: $12.055 billion

  3. AT&T: $12.037 billion

  4. Apple: $11.962 billion

  5. Verizon: $9.416 billion

(Source: S&P Dow Jones Indices)

The dividend announcement is likely to accompany an expansion of Apple's stock buybacks, perhaps by as much as $45 billion to $50 billion, according to an estimate done by Goldman Sachs analyst Simona Jankowski. Its not a shareholder reward program Apple tends to divulge details on until later in the year, but CFRA analyst Zino suggested that may change if details President Trump's plans to allow low-tax repatriation of offshore corporate cash holdings become clear — it was not presented with any detail in the tax reform overview provided by the White House last week.