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TDNA T. Rowe Price Biotech ETF
TDNA has not filed its holdings yet, so there is nothing to look through.
not filed
Already in the S&P 500
not filed
Active share vs the S&P 500
not published
Top ten holdings
−3.6%
Total return, since launch
| Window | Total return | S&P 500 | Gap to S&P 500 | Gap to Nasdaq-100 |
|---|---|---|---|---|
| Since launch Sep 17 – Oct 2, 2026 | −3.6% | +1.2% | −4.8 pts | −8.3 pts |
TDNA over each window to Oct 2, 2026. Every figure is an ETFIQ calculation. Source: ETFIQ.
Head to head
In plain words
Since it launched on Sep 17, 2026 the fund returned −3.6% with distributions reinvested against +1.2% for the S&P 500, so a holder was behind by 4.8 pts.
Theme (ETFIQ, editorial)Biotech
LaunchedSep 17, 2026
Below its all-time high (ETFIQ)−4.0%
Expense ratio (485BPOS XBRL, Jul 24, 2026)0.55%
TDNA (T. Rowe Price Biotech ETF), thematic ETFs fields as of Oct 2, 2026. Source: ETFIQ.
Holdings from the fund’s latest public SEC N-PORT filing; overlap and active share computed by ETFIQ against the IVV and QQQM books; returns from Tiingo end-of-day prices with distributions reinvested. How these figures are computed
Questions people ask about TDNA
- Has TDNA beaten the S&P 500?
- Over the year to Oct 2, 2026 TDNA returned −3.6% with distributions reinvested, against +1.2% for the S&P 500, so it finished behind the index by 4.8 points.
- What does TDNA cost?
- The prospectus expense ratio is 0.55% a year.
Sources and dates
Prices, TDNA and S&P 500Tiingo end-of-day · Oct 2, 2026
IssuerT. Rowe Price website ↗
ETFIQ links to the documents behind every figure. It is not affiliated with any issuer, and a link is not an endorsement.
Cite this page
ETFIQ, TDNA, thematic ETFs, data as of Oct 2, 2026. https://etfiq.com/funds/tdna
ETFIQ. (Oct 2, 2026). TDNA, thematic ETFs. Retrieved from https://etfiq.com/funds/tdna
[TDNA, thematic ETFs (ETFIQ, Oct 2, 2026)](https://etfiq.com/funds/tdna)
Free to use with attribution; the underlying files are at Open data.
How differently the money is placed, counting weights: one minus the sum of the smaller weight of each security across the fund and the index. 100% means nothing in common; 0% means the index itself. Two funds can hold the same names and still have a high active share if they weight them very differently.
Weight overlap
The share of money two portfolios hold in the same securities at the same weight. Above 50%, holding both is close to holding one of them twice.
Already in the index
The fund’s weight in securities the S&P 500 holds at all. A fund can be made entirely of index names and still have high active share, because it holds them at different weights.
The weight of the ten largest holdings. Above 50% the fund is a bet on a handful of companies, whatever the theme.
TDNA, Thematic ETFs, ETFIQ, data as of Oct 2, 2026. Every figure is calculated from a named public source; the method is at etfiq.com/methodology. ETFIQ is an independent publisher, is not a fund issuer, broker-dealer or investment adviser, and makes no recommendations.