No stock is as anticipated, nor will be scrutinized more closely, than the results from Apple, which will report after Tuesday's close

Apple Fiscal First Quarter Earnings Report (Tuesday, January 31, after the close)

Apple is the most heavily-weighted stock in the market-cap weighted S&P 500, the most heavily-weighted stock in the market-cap weighted Nasdaq 100, and the eighth highest-priced stock in the price-weighted Dow Jones Industrial Average, so it clearly has market-moving capability

Shares of AAPL have outperformed in early 2017.  Therefore, investors are waiting to hear relatively good things from Apple when it reports its results and delivers guidance. Failure on either front could lead to a notable retreat in the stock, which would act as a major drag on the broader market.

Stocks Affected

• Smartphones 
  • Samsung (SSNLF)
  • Blackberry (BBRY)
     

Component supplier

• Broadcom (AVGO; Apple more than 20% of fiscal 2015 net sales)
• Cirrus Logic (CRUS; Apple was 72% of fiscal 2015 sales)
• InvenSense (INVN; Apple 30% of fiscal 2015 net sales) 
• Qualcomm (QCOM) 
• NXP Semiconductors (NXPI)
• Micron Technology (MU)
• Analog Devices (ADI)
• Skyworks Solutions (SWKS)
• On Semiconductor (ON)
• Western Digital (WDC)
• Seagate Technology (STX)
   

Other Companies

• TTM Technologies (TTMI; Apple 20% of fiscal 2015 net sales)
• Jabil Circuit (JBL; Apple 24% of fiscal 2015 net sales)
• Electro Scientific Industries (ESIO; Apple 9% of fiscal 2015 net sales)
• Flextronics (FLEX)
   

Wearables

• Fitbit (FIT)
• Garmin (GRMN)
   

Computer hardware

• HP, Inc. (HPQ)
   

Consumer electronics retailers

• Best Buy (BBY)
• Conns (CONN)

Wireless carriers

• AT&T (T)
• Verizon (VZ)
• T-Mobile (TMUS)
• Sprint (S)
• China Mobile (CHL)

Related ETF

• PowerShares QQQ ETF (QQQ)
• SPDR S&P 500 ETF (SPY)
• SPDR Dow Jones Industrial Average ETF (DIA)
• Technology Select Sector SPDR ETF (XLK)