Two funds head-to-head: live engine reads, trailing performance, and holdings overlap from SEC filings. An engine-read comparison — not a recommendation.
From each fund's SEC N-PORT filing (2026-08-25 / 2026-08-28), computed on the 356 of 504 and 354 of 506 equity positions matched to the QuantLogix stock universe — a lower bound, never an estimate.
QuantLogix's 5-factor engine currently reads iShares Core S&P 500 ETF (IVV) at 65/100 (buy) and Vanguard S&P 500 ETF (VOO) at 59/100 (buy). IVV carries the stronger composite read by 6 points, led by microstructure at 73/100. VOO's strongest leg is technical at 60/100. On trailing price performance, VOO leads over the last year (+15.0% vs +15.0% for IVV). By filed portfolio weights, at least 62.7% of the two funds overlaps across 351 shared positions. Signals recompute throughout the trading day — the balance can shift with the tape.
🤖 Want the deeper take? Pro runs a 10-agent AI debate on either name — 5 analysts, bull vs bear, a risk read, and a trader's verdict. See Pro →Educational market analysis, not investment advice. QuantLogix does not provide personalized recommendations. IVV ETF page · VOO ETF page · ETF rankings · Equities Network · Verified track record