Aquamarine Zurich AG — 13F Portfolio

Aquamarine Zurich AG is a Zurich-based investment management firm associated with the Aquamarine group founded by value investor Guy Spier. Operating out of Switzerland, the firm manages concentrated, long-only global equity portfolios, most notably via the Aquamarine Fund, for a client base that includes high-net-worth individuals, family offices, and other sophisticated investors. The firm’s investment practice is deeply rooted in classic value-investing principles inspired by Warren Buffett and Charlie Munger: owner-oriented analysis, focus on durable business franchises, and a long-term, buy-and-hold mindset. Portfolios are deliberately concentrated, with capital allocated to a limited number of high-conviction ideas rather than diversified across broad indices. Aquamarine Zurich AG appears in U.S. regulatory records as an institutional investment manager under CIK #0001953324 and files Form 13F with the Securities and Exchange Commission because it exercises discretionary authority over a reportable level of U.S.-listed securities. These filings cover the firm’s long positions in U.S.-listed equities and certain ADRs that are part of its broader global mandates. They do not include non-U.S. listings held directly on local exchanges, cash, or any non-equity instruments that may be present in the underlying fund structures. Within this platform, Aquamarine Zurich AG’s 13F History is assembled into a quarter-by-quarter record of disclosed U.S.-listed holdings. This provides allocators with a transparent, position-level view of how the firm’s U.S. equity exposures by issuer and sector have evolved through changing market regimes, independent of marketing narratives.

Aquamarine Zurich AG pursues a fundamental, long-only global value strategy with a pronounced quality and “owner’s mindset” bias. The philosophy is to own a small number of outstanding businesses at sensible prices and to hold them for long periods, allowing underlying compounding to dominate outcomes. Core tenets of the approach include: - Business quality first: Priority is given to companies with durable competitive advantages (economic moats), strong and predictable free-cash-flow generation, high returns on capital, and conservative balance sheets. - Owner-oriented analysis: The team evaluates management integrity, capital-allocation discipline, and shareholder alignment, treating each investment as a partial ownership interest in a business rather than a tradeable ticker. - Valuation discipline: Even for high-quality franchises, purchase decisions are anchored in conservative estimates of intrinsic value and a margin of safety, typically using long-term cash-flow and earnings power rather than short-term metrics. - Concentration and patience: Capital is focused in a limited number of high-conviction positions—often only a dozen or two core holdings—held over many years. Trading is infrequent; portfolio activity is driven by material changes in business value, competitive dynamics, or valuation extremes. Geographically, Aquamarine invests globally but has historically maintained significant exposure to U.S.-listed businesses, both domestic and foreign-domiciled issuers trading via ADRs. In the 13F context, this appears as a concentrated list of U.S.-listed companies that fit the firm’s quality-and-value criteria, often including financial institutions, branded consumer franchises, selected technology and industrial companies, and occasionally healthcare or other sectors where the long-term economics are attractive and understandable. Turnover in the 13F portfolio is characteristically low. Core positions tend to recur across many reporting periods, with additions and trims reflecting gradual conviction shifts, changes in opportunity cost across the idea set, or portfolio-level risk and liquidity considerations. On this platform, the 13F Portfolio Composition view makes Aquamarine Zurich AG’s implementation choices in U.S.-listed names directly visible—by sector, market-capitalisation band, and issuer concentration. In combination with the Portfolio Simulator and Backtesting Service, users can construct a rules-based replication of the 13F sleeve to examine how the firm’s concentrated quality-value discipline has translated into observable capital trajectories over time.

Aquamarine Zurich AG is a Zurich-based, high-conviction global value manager led by Guy Spier, implementing a Buffett-style, quality‑and‑value discipline through concentrated long-only equity portfolios. Its Form 13F filings under CIK #0001953324 offer a detailed view of the U.S.-listed portion of that strategy—typically a small, carefully selected roster of high-quality franchises held with a long investment horizon. From the 13F perspective, notable attributes include: - A focused, fundamentally driven portfolio with significant issuer concentration and low turnover, consistent with a long-term owner mindset. - Style tilts toward quality and value/GARP factors, and sector allocations that arise from bottom-up opportunity rather than benchmark replication. - A risk pattern for the observable sleeve dominated by equity beta and idiosyncratic company risk, modulated by the resilience of underlying business models. Within this analytics environment, allocators can construct a reconstructed Historical Track Record of Aquamarine Zurich AG’s 13F-reportable holdings and compare the implied capital path with relevant U.S. and global equity benchmarks, as well as with peer concentrated value managers. By combining 13F Portfolio Composition analytics with risk diagnostics such as Max Drawdown Depth and efficiency measures like Sharpe Ratio, practitioners can form a data-grounded view of how the firm’s U.S.-listed equity sleeve has behaved on both an absolute and risk-adjusted basis. The central analytical question for allocators is how this concentrated, quality‑value profile—seen solely through 13F history—responds to different market and style regimes, including prolonged speculative growth leadership, value recoveries, rising or falling interest-rate environments, and macro shocks, and whether that regime sensitivity aligns with the role they intend Aquamarine Zurich AG to play within a broader, multi-manager portfolio.

The risk profile of Aquamarine Zurich AG, as seen through its 13F filings, reflects the characteristics of a concentrated, long-only global value manager with a significant allocation to U.S.-listed equities. Key dimensions of the 13F-visible risk profile include: - Equity market exposure: A 13F-based reconstruction of the portfolio is fully exposed to equity-market risk. With a buy-and-hold orientation, the portfolio experiences broad market drawdowns, although the emphasis on resilient franchises and strong balance sheets can provide some relative cushion versus lower-quality peers. - Concentration and idiosyncratic risk: The firm’s deliberate concentration in a small number of best ideas means that a handful of positions typically account for a large share of reported market value. Company-specific events—earnings disappointments or positive surprises, regulatory developments, capital-allocation decisions, or structural shifts in competitive dynamics—can therefore have a meaningful impact on short- and medium-term capital paths. - Style and factor tilts: The focus on quality franchises purchased at reasonable valuations creates tilts toward quality and value (or GARP) factors, and often away from highly speculative, unprofitable, or heavily cyclical businesses. This can lead to extended periods of relative underperformance in markets dominated by momentum or speculative growth, and to favourable relative behaviour when the market re-focuses on balance-sheet strength and sustainable cash flows. - Sector and geographic patterns: While sector allocation is a by-product of stock selection rather than a top-down target, recurring exposure to financials, consumer, and selected industrial and technology names introduces sensitivity to credit conditions, consumer spending patterns, and innovation cycles. Currency and policy developments affecting key geographic exposures can also influence returns. On this platform, a 13F-based replication of Aquamarine Zurich AG’s U.S.-listed sleeve can be evaluated using standard diagnostics. Measures such as Max Drawdown Depth highlight the worst peak-to-trough declines experienced by the reconstructed holdings over user-defined horizons, while a Sharpe Ratio lens helps relate realised variability to the excess compounding achieved versus a cash proxy. Scenario analysis and stress testing—implemented via Performance Backtests Online—can be used to explore how the observable sleeve would likely have behaved during episodes such as the global financial crisis, the 2020 pandemic shock, and periods of sharp growth–value rotations. Because Form 13F does not capture non-U.S. listings, cash reserves, or any hedging or liquidity measures the firm may use at the fund level, the volatility and drawdowns implied by an equity-only replication will generally overstate risk at the full-portfolio level, while understating the diversification provided by non-U.S. holdings.