# Energy security and critical technology ETFs > ETFIQ covers 5 energy security and critical technology ETFs. The largest are IETC ($670m), CRTC ($162m) and NSI ($42m), as of May 31 to Oct 26, 2026. Data as of Oct 27, 2026. Rebuilt every trading night. Data as of Oct 27, 2026 . ## Energy security and critical technology ETFs See every energy security and critical technology ETF by what it holds, not by its name. Funds that hold the companies a country needs in order to supply its own energy and critical technology. 5 funds, largest first. Updated Oct 27, 2026. The typical fund carries 85% of its weight in S&P 500 stocks, the 1st most of the 53 themes with holdings on file. 5 US listed energy security and critical technology ETFs $670m The largest, IETC 0.18% The cheapest, IETC +19.4% Best one year, DRES ### The short answers Least like the S&P 500 NSI , National Security Emerging Markets Index ETF, 0.0% of its weight in S&P 500 companies. Closest pair CRTC and IETC , 36% of their weight in the same companies. ### What these funds actually own Between them the 5 funds' ten largest holdings name 44 companies, of which 6 appear in more than one. NVIDIA is among the ten largest of 2 of them, at an average of 9.1% of the fund. | Company | Among the ten largest of | Average weight where it is | Largest, and in which fund | | --- | --- | --- | --- | | NVIDIA NVDA | 2 of 5 | 9.1% | 13.7% in IETC | | EXXON MOBIL CORP XOM | 2 of 5 | 4.9% | 6.9% in TSES | | ADVANCED MICRO DEVICES AMD | 2 of 5 | 4.7% | 5.6% in IETC | | ALPHABET CLASS A GOOGL | 2 of 5 | 3.9% | 5.1% in CRTC | | AMAZON.COM INC AMZN | 2 of 5 | 3.8% | 4.9% in CRTC | | CISCO SYSTEMS INC CSCO | 2 of 5 | 2.2% | 2.3% in IETC | | TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD | 1 of 5 | 15.9% | 15.9% in NSI | | SAMSUNG ELECTRONICS CO LTD | 1 of 5 | 9.1% | 9.1% in NSI | | BROADCOM INC AVGO | 1 of 5 | 7.3% | 7.3% in IETC | | Chevron Corp CVX | 1 of 5 | 6.9% | 6.9% in TSES | | Eaton Corp PLC ETN | 1 of 5 | 6.0% | 6.0% in TSES | | Union Pacific Corp | 1 of 5 | 5.2% | 5.2% in DRES | | MICRON TECHNOLOGY MU | 1 of 5 | 5.1% | 5.1% in IETC | | MICROSOFT CORP MSFT | 1 of 5 | 5.0% | 5.0% in CRTC | | GE Vernova Inc GEV | 1 of 5 | 4.7% | 4.7% in TSES | The 15 most widely held of 44. Each row counts the ten largest holdings of each fund, so a fund missing from a row may still hold that company lower down. Weights are of the funds that name it, not of the theme. ### The 5 largest energy security and critical technology ETFs ETFIQ covers 5 energy security and critical technology ETFs. The largest are IETC ( $670m ), CRTC ( $162m ) and NSI ( $42m ); fees run 0.18% to 0.75% , as of May 31 to Oct 26, 2026 . - IETC iShares U.S. Tech Independence Focused ETF $670m 0.18% - CRTC Xtrackers US National Critical Technologies ETF $162m 0.35% - NSI National Security Emerging Markets Index ETF $42m 0.75% - DRES GMO Domestic Resilience ETF $36m 0.50% - TSES Truth Social American Energy Security ETF $8.2m 0.65% | Ticker | Fund | Issuer | Net assets | In the S&P 500 | Active share | Total return 1Y | vs its benchmark 1Y | Fee | | --- | --- | --- | --- | --- | --- | --- | --- | --- | | IETC | iShares U.S. Tech Independence Focused ETF | iShares | $670m | 87.3% | 59.7% | +2.9% | not measured | 0.18% | | CRTC | Xtrackers US National Critical Technologies ETF | Xtrackers | $162m | 85.4% | 61.8% | +10.9% | −2.2 pts vs URTH | 0.35% | | NSI | National Security Emerging Markets Index ETF | Tuttle | $42m | 0.0% | 100.0% | +10.1% | not measured | 0.75% | | DRES | GMO Domestic Resilience ETF | GMO | $36m | 55.1% | 98.2% | +19.4% | +5.8 pts vs VOO | 0.50% | | TSES | Truth Social American Energy Security ETF | Yorkville | $8.2m | 88.4% | 94.7% | first traded 301 days ago | · | 0.65% | ### How much of each pair is the same fund The closest pair is CRTC and IETC , which hold 36% of their weight in the same companies. The furthest apart is NSI and TSES at 0%. The middle pair of the 10 is 0%. | | IETC | CRTC | NSI | DRES | TSES | | --- | --- | --- | --- | --- | --- | | IETC | · | 36% | 0% | 0% | 0% | | CRTC | 36% | · | 0% | 2% | 11% | | NSI | 0% | 0% | · | 0% | 0% | | DRES | 0% | 2% | 0% | · | 8% | | TSES | 0% | 11% | 0% | 8% | · | Weight overlap adds the smaller of the two weights for every company both funds hold. Funds with a cut-short book are left out, not compared short. ### What each fund holds alone | Fund | Largest holding it alone has | Weight | All of its own names | | --- | --- | --- | --- | | IETC | BROADCOM INC AVGO | 7.3% | 39.9% | | CRTC | ABBVIE INC ABBV | 1.8% | 36.7% | | NSI | TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD | 15.9% | 95.8% | | DRES | Union Pacific Corp | 5.2% | 67.2% | | TSES | Quanta Services Inc PWR | 3.7% | 40.1% | ### Questions people ask How many energy security and critical technology ETFs are there? ETFIQ covers 5 US listed energy security and critical technology ETFs as of Oct 27, 2026. That is every one it can measure from the fund’s own published holdings. What is the largest energy security and critical technology ETF? IETC , iShares U.S. Tech Independence Focused ETF, at $670m in net assets as of Oct 26, 2026, the largest of the 5 energy security and critical technology ETFs with a published size. What is the cheapest energy security and critical technology ETF? IETC , iShares U.S. Tech Independence Focused ETF, at 0.18% a year by its prospectus filed Nov 21, 2025, the lowest fee of the 5 energy security and critical technology ETFs that publish one. Which energy security and critical technology ETF has performed best over the past year? DRES , GMO Domestic Resilience ETF, at +19.4% total return over the year to Oct 27, 2026, the highest of the 4 energy security and critical technology ETFs with a full year of trading behind them. Past returns do not predict future ones. What do energy security and critical technology ETFs hold? Funds that hold the companies a country needs in order to supply its own energy and critical technology. Between them the 5 energy security and critical technology ETFs ETFIQ can read name 44 companies in their ten largest holdings, by holdings dated May 31, 2026 to Oct 26, 2026, most widely NVIDIA, which is among the ten largest of 2 of them. Do energy security and critical technology ETFs hold the same companies? It depends which two. Across the 10 pairs of the 5 energy security and critical technology ETFs with a full published book, by holdings dated May 31, 2026 to Oct 26, 2026, CRTC and IETC hold 36% of their weight in the same companies, NSI and TSES hold 0%, and the middle pair holds 0%. Two funds sold on one theme are not the same fund. ### What the issuers say about this theme The issuers behind these energy security and critical technology funds publish their own work on this theme. These are their pages and words, not ETFIQ’s. A fund company writing about a theme it sells is making a case. | Issuer | What they publish | Kind | | --- | --- | --- | | iShares | iShares Portfolio Insights | Their research index | ### Where to next ### Sources Links are sources, not endorsements. ETFIQ is an independent publisher and makes no recommendations. Standards and sources --- Source: ETFIQ, independent ETF data. Recomputed nightly from public filings and prices. Cite: ETFIQ, Energy security and critical technology ETFs, data as of Oct 27, 2026. https://etfiq.com/themes/energy-security Licence: https://etfiq.com/license/ Data ETFIQ computes is free to use with attribution: ETFIQ (etfiq.com). Issuer data stays under its owner's terms. HTML: https://etfiq.com/themes/energy-security