The answer in plain English
Expense ratio describes recurring scheme costs; tracking difference describes a return gap; tracking error concerns the variability of periodic gaps. The market spread is a separate trading cost. AUM can provide implementation context but cannot guarantee that a large trade will execute near a displayed reference value.
What to check
- Record the official product identity and benchmark before comparing figures.
- Use the same return period and sign convention for tracking difference.
- Read current dated expenses rather than an old “lowest fee” article.
- Inspect executable quotes and quantities, not simply the last traded price or daily volume.
A useful comparison
| Metric | Useful question | Limitation |
|---|---|---|
| Expense ratio | What recurring cost is disclosed? | Does not include every trading cost |
| Tracking difference | How large was the realised return gap? | Historical and period-dependent |
| Tracking error | How variable were periodic gaps? | A low value can coexist with a steady shortfall |
| Bid–offer spread | What gap separates quoted buyers and sellers? | Can change with time and trade size |
| AUM | How large is the scheme at that date? | Not a guarantee of liquidity or performance |
Make the distinction clear
Example: a hypothetical 0.05-percentage-point fee saving is not automatically worth a much worse one-time execution price for a small holding period. Compare costs in rupees over the intended amount and period, without assuming future spreads or tracking. Do not compare gold-mining equity with a physical-gold ETF as if the exposures were identical.
Gold-ETF names to identify and compare
Alphabetical examples from AMFI’s official file, checked on 17 October 2026. This is not a return or fee ranking. ISIN and valuation date help distinguish products; read current scheme documents and exchange quotes before a transaction.
| Gold ETF | ISIN in source | NAV record date |
|---|---|---|
| 360 ONE Gold ETF | INF579M01BB5 | 16-Oct-2026 |
| Aditya Birla Sun Life Gold ETF | INF209KB18D3 | 16-Oct-2026 |
| ANGEL ONE GOLD ETF | INF1J2R01114 | 16-Oct-2026 |
| Axis Gold ETF | INF846K01W80 | 16-Oct-2026 |
| Bandhan Gold ETF | INF194KB1KJ7 | 16-Oct-2026 |
| Baroda BNP Paribas Gold ETF | INF251K01SU9 | 16-Oct-2026 |
| Choice Gold ETF | INF2KCX01012 | 16-Oct-2026 |
| DSP Gold ETF | INF740KA1ZP2 | 16-Oct-2026 |
| Edelweiss Gold ETF | INF754K01SE6 | 16-Oct-2026 |
| Groww Gold ETF | INF666M01OE7 | 16-Oct-2026 |
Keep the historical year separate
The year in this question refers to an earlier market window. Current fee or performance data cannot prove which product was best at that earlier date. Reconstruct a historical comparison from contemporaneous scheme documents and NAVs; do not present the current directory examples above as an old-year ranking.
One final question before acting
Does the figure or document match the exact scheme, plan, option, period and purpose in your question? Keep the source date with the answer. For a real transaction or personal decision, the current scheme documents and your own records take priority over a saved educational example.