The Swiss National Bank disclosed that its holdings of U.S. stocks climbed to $173.8 billion at the end of the first quarter. The figure, revealed in a routine filing with the Securities and Exchange Commission, marks a roughly 3% rise from the previous period. It stands as the highest level in four years. Only once before, in March 2022, did the portfolio exceed this mark, topping out slightly above $177 billion.
This isn’t pocket change. The sum equals a meaningful slice of Switzerland’s economy. And the SNB isn’t some hedge fund chasing alpha. It is the country’s central bank. Its equity purchases stem directly from efforts to tame the Swiss franc’s persistent strength. Sell francs. Buy dollars and other currencies. Then put those dollars to work in bonds, and yes, in stocks. The result is one of the world’s largest and most unusual institutional portfolios.
According to data compiled by WhaleWisdom, the SNB’s latest reported U.S. equity portfolio reached $173.8 billion with a top-10 concentration of 33.92%. Nvidia, Apple and Microsoft form the core. They account for the largest positions. Amazon and Alphabet follow closely behind. The bank spreads ownership across more than 2,300 U.S.-listed names. It owns a $981 million stake in Palantir Technologies, a holding that has drawn public protests in Switzerland despite the bank’s passive approach.
The strategy traces back years. Switzerland’s small domestic bond market leaves few options when the franc surges as a safe-haven currency. Unlike the Federal Reserve or European Central Bank, which buy their own government debt, the SNB intervenes in foreign exchange markets. It accumulates foreign assets that now make up about 87% of its balance sheet. Roughly a quarter of those foreign-currency reserves sits in equities. The approach has turned the SNB into a major Silicon Valley investor almost by accident.
Yet the portfolio’s performance feeds directly into the bank’s bottom line. For 2025 the SNB reported a profit of 26.1 billion Swiss francs, or about $34 billion. Price gains on equity securities and instruments contributed 28.3 billion francs. That helped offset exchange-rate losses of 53.1 billion francs caused by a stronger franc. Gold delivered a 36.3 billion franc valuation gain. The bank still allocated 12.7 billion francs to provisions for currency reserves and distributed 4 billion francs to the Swiss Confederation and cantons.
But 2025 also brought volatility. The bank posted interim losses earlier in the year when the dollar weakened and U.S. tech shares pulled back. Such swings highlight the risks. Equities deliver higher long-term returns than bonds. They also amplify losses when markets turn. The SNB maintains strict rules. It avoids controlling stakes. It steers clear of companies tied to banned weapons, severe environmental damage or major human-rights violations. Voting rights on U.S. shares stay unused. The mandate remains monetary policy, not investment management.
Critics still question the setup. Some wonder whether the central bank has morphed into something closer to a sovereign wealth fund. Others argue it should outsource portions of the portfolio to professional managers in search of better returns. The SNB disagrees. Liquidity matters. The ability to sell assets quickly during currency crises outweighs marginal performance gains. As one economist put it in a Swissinfo report from last September, the bank’s foreign asset purchases amount to a form of overseas quantitative easing. The goal is a weaker franc, not stock-market outperformance.
The franc’s behavior in 2025 tested that framework. It rose 13% against the dollar amid U.S. tariff uncertainty and global risk aversion. The SNB responded with further interventions. Its total foreign-currency reserves swelled. Equity exposure grew in tandem because the bank follows broad market-capitalization weights rather than picking individual names. Concentration in a handful of technology leaders was therefore inevitable. Five companies alone absorbed more than $42 billion at points last year.
That tilt worries some observers. Technology stocks have driven much of the U.S. market’s gains. A reversal could hit the SNB’s balance sheet hard. The bank’s own annual report acknowledges the need for sufficient equity capital to absorb potential losses. Provisions for currency reserves now stand above 140 billion francs. A distribution reserve provides another buffer. Still, large paper losses remain politically sensitive in Switzerland, where the SNB is half-owned by the cantons and listed on the local exchange.
Comparisons to other central banks sharpen the contrast. The Bank of Japan has bought massive amounts of domestic exchange-traded funds. It owns a sizable percentage of the Tokyo market. The SNB, by contrast, focuses abroad. Its U.S. holdings alone rival the scale of many large pension funds or endowments. Yet the purpose stays different. Price stability at home drives every decision.
Recent market moves have only reinforced the bank’s visibility. Nvidia remains the single largest position at more than 7% of the U.S. equity book. Apple and Microsoft each exceed 4%. The top 10 names together represent one-third of the portfolio. Such concentration would raise eyebrows at a conventional asset manager. For the SNB it simply mirrors the MSCI World Index or similar benchmarks it tracks passively.
And the holdings keep evolving. In recent quarters the bank trimmed some mega-cap positions while adding to others and initiating small stakes in new names. Turnover stays modest. The strategy avoids market timing. It buys what the market weights. That discipline has produced substantial gains over the past decade even as it invites periodic scrutiny.
Swiss officials defend the model. SNB Chairman Martin Schlegel has noted that the foreign-currency portfolio serves monetary policy first. It must stay liquid. It must preserve value over the long term. Individual stock comments remain off limits. The bank relies on external specialists for its exclusion lists. Protests over specific names such as Palantir have not altered the overall framework.
The broader implications stretch beyond Switzerland. When a central bank prints money to buy foreign equities, it injects liquidity into global markets. It competes with private investors for the same shares. Price discovery changes. Asset prices reflect policy as much as fundamentals. Similar dynamics appear in Japan. They surface wherever central banks expand balance sheets into risk assets.
For now the SNB shows no sign of retreat. The franc’s safe-haven status endures. Global uncertainty from trade tensions to geopolitical risks keeps demand for Swiss currency elevated. Interventions continue. The equity portfolio grows with them. At $174 billion and climbing, it stands as both a policy tool and a quiet force in U.S. markets.
Investors tracking the filings watch for shifts in concentration or sector weights. Economists study the interplay between franc strength and reserve accumulation. Swiss citizens debate the profits and losses that flow back to public coffers. The SNB, meanwhile, files its next 13F. The numbers will likely show further evolution. But the strategy remains. Manage the currency. Accept the volatility. Hold the stocks.
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