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Passive & Indexing

ELFY's new top holding is a rounding error with a crown

Twelve basis points separate first from second in a 112-name index, and the rebalance tells investors which side of the electrification trade the fund now wants to own.

ALPS's electrification ETF left rebalance season with a new top holding, Forgent Power Solutions, which climbed from 0.65 percent of the Ladenburg Thalmann Electrification Infrastructure Index to 1.22 percent on September 18, the largest increase in the index, according to ETF Trends, which first reported the changes. Vicor rose from 0.7 percent to 1.1 percent for the second-largest gain and the second slot, while Zebra Technologies fell about 0.3 percent out of the top spot and Tetra Tech, the index's second-largest holding, slipped roughly as much.

Divide by the roster and the crown shrinks. An evenly weighted 112-name index would carry 0.89 percent in every position, so ELFY's leader sits a third of a percentage point above a naive basket, and twelve basis points separate first place from second. A top-weight label attached to that gap is a rounding error, and in a portfolio this flat the sector line does more work than any single stock, the same pattern flagged in OUSM's quality screen, where the sector call, not the name, produced the outcome.

The composition shifted more than the weights. The two new leaders are a firm that powers data centers and a maker of power modules for semiconductor power, per the report's descriptions, displacing a data-capture business and a construction-and-consulting firm from the top of the book. The additions were small—X-Energy at 0.9 percent and Core Natural Resources at 0.83 percent—against five deletions that bring the roster to 112 names from 115; three net names off the list is a larger change than any of the individual weight shifts.

Rebalance season has been busy: the same day brought coverage of THNR's turnover, with Gilead and Structure Therapeutics entering a 20-stock index whose return still rides on Eli Lilly. ELFY's changes are more dispersed, but they read the same way, the index telling you which part of electrification it now wants to own. This publication has argued the AI-power trade is migrating from chip exposure toward the power itself, and the rebalance puts the wrapper's two heaviest positions on that side, the firm feeding data centers and the firm conditioning the semiconductors that run them. ALPS charges 50 basis points for the basket, and VettaFi, which the fund's disclosure identifies as index provider, collects a licensing fee, so the index is the product and the top-holding headline is how it sells.

ELFY has returned 12.3 percent year to date, a fair advertisement for a flat basket. The next rebalance will show whether power hardware keeps the crown or hands it back to data capture on that margin.

ELFY's biggest positions barely clear an even split
Index weights after the September 18 rebalance, against a 112-name equal weighting
Forgent VicorX-EnergyEven weiCore Nat
ETF TRENDS REBALANCE REPORT · SEPT 18, 2026
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