These questions came to mind when we learned that the central bank of Switzerland, the Swiss National Bank, purchased 3,300,000 shares of Apple stock in the first quarter of this year, adding 500,000 shares in the second quarter. Smart money would have been selling, not buying.

It turns out that the Swiss central bank, in addition to its Apple stock, holds very large equity positions, ranging from $250,000,000 to $637,000,000, in numerous US corporations — Exxon Mobil, Microsoft, Google, Johnson & Johnson, General Electric, Procter & Gamble, Verizon, AT&T, Pfizer, Chevron, Merck, Facebook, Pepsico, Coca Cola, Disney, Valeant, IBM, Gilead, Amazon.

Among this list of the Swiss central bank's holdings are stocks which are responsible for more than 100% of the year-to-date rise in the S&P 500 prior to the latest sell-off.