Hi Nick,

Good questions. Let me untangle them.

Reg what's typical, there isn't a universal number, and that's the most useful thing to know. Capture ratios only mean something relative to the benchmark you measure against, and they scale with how much market risk the portfolio takes. A concentrated high-beta portfolio can show something like 190%/130% against the S&P, a defensive buffer ETF might show 63%/35%, and a 60/40 can even show higher downside than upside capture (like 60%/70%) just because it's measured against an all-equity index it was never meant to track. R2 can help to tell if the selected benchmark suits the portfolio. If R2 is high (0.8+), the benchmark fits and the capture numbers mean something. If it's low (0.4 or 0.16), the benchmark barely describes your portfolio, and a low downside capture there reflects independence from the index, not active downside protection. So a great-looking 90%+ upside / sub-20% downside is only meaningful if R2 backs it up. Otherwise you're usually looking at a short history or a mismatched benchmark.

On "cancelling portfolio's return", the framing is a bit of a trap. It depends on how you get the low downside capture:

• If you get it by holding bonds/cash/defensive assets, you'll usually lag in a strong bull market. But in a down or choppy market, losing less is higher return. Drawdown math is asymmetric: a -50% needs a +100% just to recover, so a portfolio that sidesteps deep losses starts each recovery from a higher base and can come out ahead over a full cycle.
• If you get it through selection or alpha (holding things that hold up better in downturns without giving up the upside), you're adding return outright. That shows up as positive alpha.

So "high upside + low downside cancels your return" is only true if you assume markets always go up. Across a full cycle with real drawdowns, a lower-beta portfolio with limited downside can deliver greater total return, not less, precisely because it doesn't dig deep holes to climb out of.

Happy to go deeper on any of these if it helps.