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Alternative Investments Overview

One-line definition

Investments outside the traditional public-equity, fixed-income, and cash universe this repo otherwise covers — private capital (private equity, private debt), real assets (real estate, infrastructure, natural resources), and hedge funds — grouped together not because they share common characteristics, but because they share the absence of the characteristics traditional assets have (public pricing, daily liquidity, standardized reporting).

Vocabulary

  • Private equity: leveraged buyouts (acquiring a mature company with significant debt, targeting an eventual sale), venture capital (early- stage equity in high-growth companies), and distressed/special- situations investing. Structured as closed-end funds with general partners (GPs) managing capital committed by limited partners (LPs).
  • Private debt: direct lending and other non-bank credit extended to companies — the private-market analogue of the leveraged loans and fundamental credit analysis machinery this repo already has for public credit, applied where there's no public market price.
  • Real assets: real estate, infrastructure (toll roads, utilities, power generation), and natural resources (timberland, farmland, commodities-adjacent assets) — often held for inflation-hedging and diversification properties as much as for outright return.
  • Hedge funds: pooled vehicles pursuing absolute-return strategies (long/short equity, macro, relative value, event-driven) using leverage and derivatives more freely than a typical long-only mandate, targeting returns less correlated with traditional market beta.
  • J-curve: the typical private-equity fund cash-flow pattern — reported returns dip negative early (fees and early losses precede realized gains) before rising sharply as portfolio companies are exited years later. A defining feature of illiquid, closed-end structures that has no analogue in this repo's daily-liquid, mark-to-market portfolio model.

Why PMs care

An allocator moving from a purely public-markets seat needs at least survey-level fluency here even without managing alternatives directly — institutional asset-allocation decisions (endowments, pensions, sovereign wealth funds) routinely carve out 20-50%+ to alternatives specifically for diversification and illiquidity-premium reasons that don't show up in a standard efficient frontier built on daily-liquid asset classes alone. Interviewing for a multi-asset or allocator-facing role without being able to speak to why an institution holds private equity or real assets at all is a real gap.

Why this isn't implemented in src/pm

Nearly everything that makes alternatives analytically distinct — J-curve cash-flow modeling, public-market-equivalent (PME) benchmarking, NAV-based (rather than market-price-based) valuation and its associated smoothing/stale-pricing effects, fund-level fee waterfalls (carried interest, hurdle rates) — is genuinely different machinery from this repo's daily-return, market-priced portfolio model, not a variation on it. This page is deliberately survey-level: interview-ready vocabulary and framing, not a working implementation.

Common mistakes

  • treating an alternative asset's reported volatility as comparable to a public asset's — infrequent NAV marking artificially smooths reported returns, understating true volatility and overstating diversification benefits if taken at face value
  • assuming "alternatives" is one asset class with one risk/return profile — venture capital, core real estate, and macro hedge funds have almost nothing in common except illiquidity and being outside the traditional public-markets universe
  • ignoring the illiquidity premium's other side: an investor who needs liquidity (to meet redemptions, rebalance, or respond to opportunity) pays for that need by being structurally excluded from this premium

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