Ask a quant running five uncorrelated strategies what their benchmark is, and watch the hesitation. Do they use the ASX 200? A 60/40 blend? Cash plus a spread? It sounds like a paperwork problem, but it's actually a performance integrity problem. The benchmark you choose determines whether you look brilliant or broken — and the wrong choice misleads everyone, including yourself.

The direct answer is this: a multi-strategy systematic portfolio needs a composite benchmark, built from the weighted return of each strategy's most relevant comparison, not a single market index. A trend-following sleeve doesn't belong measured against equities. A stat-arb sleeve doesn't belong measured against bonds. Lumping them under the ASX 200 is like rating a restaurant's dessert by how good the entrée was.

CONCEPTA composite benchmark mirrors your portfolio's actual structure — each strategy sleeve measured against its own relevant reference return.
WARNINGBenchmarking a multi-strategy fund to a single equity index almost always flatters or destroys your Sharpe ratio unfairly — both outcomes mislead.
KEY IDEAThe benchmark isn't just a performance yardstick — it defines what risk you're being paid to take and what risk is just noise.

Institutions solve this through what the CFA Institute calls a "benchmark validity test" — the reference must be investable, measurable, specified in advance, and reflective of the manager's actual opportunity set. A trend-following strategy might benchmark against the SG Trend Index. A long/short equity sleeve might use an equity market-neutral factor. Cash-plus targets suit carry strategies. Each sleeve gets its own scoreboard, then the composite is capital-weighted across sleeves.

Single Index vs Composite Benchmark Sharpe 0.0 0.5 1.0 1.5 2.0 1.6 0.9 0.7 1.3 1.2 0.9 Trend Stat-Arb Carry Single Index Composite Benchmark

The trickiest part is handling strategies with no clean market equivalent. Market-neutral stat-arb, for instance, has near-zero beta by design. Many institutions benchmark these to cash plus a spread — say, RBA cash rate plus 300 basis points — which at least captures the opportunity cost of capital. It's imperfect, but it's honest. The Journal of Portfolio Management has published extensively on how benchmark misspecification systematically distorts alpha attribution, sometimes turning genuine skill into apparent luck and vice versa. If you want to go deeper on the mechanics, Investopedia's benchmark explainer covers the foundational concepts clearly, while the Wikipedia overview of benchmarking methodology traces how institutional practice evolved. For the full theoretical framework behind multi-factor attribution, understanding Sharpe ratio construction is the logical starting point before you composite anything.

Today's practical takeaway: list every strategy sleeve you run, assign each one a realistic reference return, then capital-weight them into a single composite. Review it quarterly as allocations shift.

Your benchmark should be harder to beat than the ASX 200 — because if it isn't, you're not measuring skill, you're measuring flattery.

This content is for educational purposes only and does not constitute financial product advice. Past performance is not indicative of future results. Profit Logic Ltd (ACN 688 669 936) accepts no responsibility for errors or omissions in this content or anywhere on this website. Always seek advice from a licensed financial adviser before making investment decisions.