Economic slowdown in China. The threat of a breakaway/annexation of the Crimea, following this weekend's upcoming referendum. These are, ostensibly, the two big macro worries that hung over the equity markets this week (particularly during the past two days). After the benchmark S&P 500 erased the last of its gains for the year yesterday, it lost another 0.3% on Friday; the narrower Dow Jones Industrial Average (DJINDICES:^DJI) also dropped 0.3%.

Conversely, the "fear trade" -- long gold -- was a winner: After breaking through $1,350 per ounce for the first time since October on Monday, the near-month gold futures price ended the week at $1,382.50. The CBOE Volatility Index (VOLATILITYINDICES:^VIX), which is sometimes referred to as Wall Street's "fear gauge," hit its highest level since the beginning of February. (The VIX Index is a market measure of investor expectations for stock market volatility during the next 30 days.) Despite these jitters, however, there are two very good reasons not to pay the slightest attention to the macro factors cited above:

  • Assuming you have an equity-appropriate investing time horizon, and you own a diversified portfolio of common shares, today's headlines will have zero impact on your long-term performance -- which is the only performance that ought to matter when it comes to a stock investing.

Or, as billionaire investor and Berkshire Hathaway(NYSE:BRK-B) CEO Warren Buffett put it on CNBC this morning:

Investor fears concerning China and the Ukraine] are not warranted in terms of the market... I would bet a lot of money that income from a diversified group of stocks will increase significantly over the next 20 years -- the headlines will not make any difference in that. Stocks can go up and down, they always will go up and down, but American business is going to move forward over time and dividends will move with it.

  • Odds are, you shouldn't be a stock picker; but if you are, every market contains opportunities that will enable a talented investor to outperform the market.

Again, this holds over an appropriate time frame. Stock pickers have had a hard differentiating themselves in terms of performance during the past several years in a "risk on/risk off" market; however, that does not mean that the opportunities that would create future outperformance were not there.

In fact, despite the concerns about China, the Ukraine, and emerging markets more broadly, stock-specific factors appear to be returning to prominence, and we're beginning to witness a greater dispersion of returns between stocks:

Stock pickers market: $SPX off 0.39% YTD (up 0.09% w/dividends) but 23.8% of $SPX issues have moved at least 10% YTD (74 up & 45 down)

— Howard Silverblatt (@hsilverb) March 14, 2014

Put away your newspaper/laptop/tablet this weekend, and do something more enjoyable with your time – your investment performance-related stress will fall, but your (long-term) performance itself won't suffer a bit. (It may even improve if you avoid deciding to trade in or out of one of your positions.)

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Alex Dumortier, CFA has no position in any stocks mentioned. The Motley Fool recommends Berkshire Hathaway. The Motley Fool owns shares of Berkshire Hathaway. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.

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