Real ChatGPT answer · index seedEhZyakCcRZocompleteFinance and banking · investing and brokeragesinformational

What are the structural expense ratio and tracking error differences between comparable broad market index funds offered by Fidelity versus Vanguard?

ChatGPTgpt-63 queries10/31/2026
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The searches the AI actually ran for this prompt.

SEED QUERY
What are the structural expense ratio and tracking error differences between comparable broad market index funds offered by Fidelity versus Vanguard?
3 real searches · 1 real-search pass
Fidelity ZERO Total Market Index Fund FZROX expense ratio tracking error Vanguard VTI expense ratio tracking differenceGoogle ↗
OBSERVED
Fidelity Total Market Index Fund FSKAX expense ratio Vanguard VTSAX VTI expense ratio tracking errorGoogle ↗
OBSERVED
Fidelity 500 Index Fund FXAIX expense ratio Vanguard VFIAX VOO expense ratio tracking errorGoogle ↗
OBSERVED

Badge and edge weight = share of passes that produced the query. Hover a query for its intent and routing format.

Query classes

Google's semantic query class for every sub-query: what kind of answer each search is after, simulated vs real.

Classifying 3 queries…

Searches and sources

ChatGPT3 real searches · gpt-6
Fidelity ZERO Total Market Index Fund FZROX expense ratio tracking error Vanguard VTI expense ratio tracking difference Google ↗
Fidelity Total Market Index Fund FSKAX expense ratio Vanguard VTSAX VTI expense ratio tracking error Google ↗
Fidelity 500 Index Fund FXAIX expense ratio Vanguard VFIAX VOO expense ratio tracking error Google ↗
  1. No minimum investment mutual funds · fidelity.com
  2. FSKAX - Fidelity ® Total Market Index Fund · fundresearch.fidelity.com
  3. VOO · advisors.vanguard.com
  4. VFIAX · advisors.vanguard.com
  5. VTI · advisors.vanguard.com
  6. sec.gov · sec.gov
  7. FZROX - Fidelity ZERO ® Total Market Index Fund · fundresearch.fidelity.com
  8. Fidelity 500 Index Fund · institutional.fidelity.com
  9. Fidelity Total Market Index Fund · institutional.fidelity.com

Queries

3 queries · click a column to sort
Query / typeSearchIntentQuery classRouting formatClusterFreq ↓Weight
Fidelity ZERO Total Market Index Fund FZROX expense ratio tracking error Vanguard VTI expense ratio tracking difference
OBSERVED
Google ↗
AI Mode ↗
————1x
of 1
Fidelity Total Market Index Fund FSKAX expense ratio Vanguard VTSAX VTI expense ratio tracking error
OBSERVED
Google ↗
AI Mode ↗
————1x
of 1
Fidelity 500 Index Fund FXAIX expense ratio Vanguard VFIAX VOO expense ratio tracking error
OBSERVED
Google ↗
AI Mode ↗
————1x
of 1