# BLDX (Impax Global Sustainable Infrastructure ETF)

IMPAX FUNDS · Thematic ETFs · data as of Sep 11, 2026

BLDX holds 38 stocks, and 64% of its weight is outside the S&P 500.

## Key facts

- BLDX, already in the S&P 500: 36.0%, as of Sep 11, 2026.
- BLDX, active share vs the S&P 500: 96.6%, as of Sep 11, 2026.
- BLDX, top ten holdings: 39.6%, as of Sep 11, 2026.
- BLDX, total return, since launch: +2.2%, as of Sep 11, 2026.
- BLDX, net assets: $118m (SEC filing, whole fund, as filed for Jun 30, 2026).
- BLDX, expense ratio: 0.60% (485BPOS XBRL, Apr 24, 2026).

## BLDX over each window to Sep 11, 2026

| Window | Total return | S&P 500 | Gap to S&P 500 | Gap to Nasdaq-100 |
| --- | --- | --- | --- | --- |
| 3 months | −2.7% | +3.3% | −6.0 pts | −1.9 pts |
| 6 months | −1.3% | +16.0% | −17.3 pts | −21.9 pts |
| Since launch | +2.2% | +10.5% | −8.3 pts | −12.3 pts |

## Every published field

| Field | Value | Source |
| --- | --- | --- |
| Theme | Infrastructure | ETFIQ, editorial |
| Launched | Feb 2, 2026 | ETFIQ |
| Already in the S&P 500, by weight | 36.0% | ETFIQ |
| Active share vs the S&P 500 | 96.6% | ETFIQ |
| Already in the Nasdaq-100, by weight | 3.3% | ETFIQ |
| Active share vs the Nasdaq-100 | 97.5% | ETFIQ |
| Top ten holdings weight | 39.6% | ETFIQ |
| Holdings | 38 | ETFIQ |
| Holdings as of | Jun 30, 2026 | SEC N-PORT |
| Top holdings | Union Pacific Corp. 5.4%, American Water Works Co., Inc. 5.1%, Iberdrola SA 4.6%, Keppel DC REIT 4.0%, National Grid plc 4.0%, NextEra Energy, Inc. 3.6%, Digital Realty Trust, Inc. 3.3%, Deutsche Telekom AG 3.3%, Elia Group SA/NV 3.2%, Veolia Environnement SA 3.2% | ETFIQ |
| Net assets | $118m | SEC filing, whole fund, as filed for Jun 30, 2026 |
| Below its all-time high | −7.2% | ETFIQ |
| Expense ratio | 0.60% | 485BPOS XBRL, Apr 24, 2026 |
| Fee for the part that differs from the S&P 500, active expense ratio | 0.62% | ETFIQ |
| Closest funds by holdings overlap | INFR 16%, EVX 13%, PHO 12%, FIW 12%, EFRA 12% | ETFIQ |

## Questions

### How much of BLDX is in S&P 500 companies?

By its holdings filed for Jun 30, 2026, 36% of BLDX by weight is stocks the S&P 500 already holds. Its active share against the index is 97%, so that share is the part doing something different.

### What does BLDX hold?

38 positions as filed for Jun 30, 2026, with the top ten at 40% of the fund. The largest are Union Pacific Corp. at 5.4%, American Water Works Co., Inc. at 5.1%, Iberdrola SA at 4.6%.

### Has BLDX beaten the S&P 500?

Over the year to Sep 11, 2026 BLDX returned +2.2% with distributions reinvested, against +10.5% for the S&P 500, so it finished behind the index by 8.3 points.

### What does BLDX cost?

The prospectus expense ratio is 0.60% a year. Because 97% of the fund differs from the S&P 500, the fee on that differing part works out at 0.62%.


## Cite this page

ETFIQ, BLDX, data as of Sep 11, 2026. https://etfiq.com/funds/BLDX
Free to use with attribution; the underlying files are at https://etfiq.com/data/.

HTML: https://etfiq.com/funds/BLDX  ·  JSON: https://etfiq.com/funds/BLDX.json