ETF Weighting Impact Calculator
See how the same single-stock event — a buyout, an earnings surprise, a failed trial, a lawsuit, anything — hits an equal-weight ETF differently than a market-cap-weighted one, in any sector, with the exact crossover point where that flips.
How to use it:
Enter the number of companies in an equal-weight fund, and either the target company's actual published weight in a market-cap-weight fund (if you can find it) or one top-10 company's market cap and weight to estimate it.
Check the crossover line — it tells you the exact company size where the two funds would react equally, and which side of that line your target sits on.
Pick Positive Event or Negative Event, enter the real price move (or use the typical range in the hint), and see the actual return impact on both funds side by side, plus which one reacts harder and by how much.