AltTrack Blog

Insights for alternative investors

Performance, income, tax, capital, and the mechanics of private market investing.

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Performance MetricsJun 24, 2026·4 min read

How to Calculate XIRR on Your Alternative Investment Portfolio

XIRR is the most accurate way to measure returns on private market investments — but most investors calculate it wrong. Here's how to do it correctly across a portfolio of real estate syndications, private equity, and private credit funds.

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TaxesJun 3, 2026·4 min read

K-1 Season Survival Guide for Alternative Investors

K-1s arrive late, come in waves, and routinely delay your tax filing. Here's a systematic approach to tracking them across a portfolio of syndications, private equity funds, and private credit investments — and what to do when they don't show up.